303 research outputs found
FIGURE. Mitotic metaphase chromosomes of Thalictrum longistipitatum (A) (2n = 14), T. tsawarungense (B, C) (2n = 14), T. wangii (D) (2n = 14), and T. rostellatum (E, F) (2n = 28), all same scale. A. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3350 (IBSC). B. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3313 (IBSC). C. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3317 (IBSC). D. China, Yunnan, Lijiang, Y.P. Zeng & Y.F. Luo 200 (IBSC). E. China, Xizang, Gyirong, L. Wang, X.Q. Guo & Y.P. Zeng 2732 (IBSC). F. China, Xizang, Mainling, L. Wang, X.Q. Guo & Y.P. Zeng 3295 (IBSC). in Thalictrum hengduanshanense and T. longistipitatum (Ranunculaceae), two new species from southeastern Xizang and northwestern Yunnan, China
No full textFIGURE. Mitotic metaphase chromosomes of Thalictrum longistipitatum (A) (2n = 14), T. tsawarungense (B, C) (2n = 14), T. wangii (D) (2n = 14), and T. rostellatum (E, F) (2n = 28), all same scale. A. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3350 (IBSC). B. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3313 (IBSC). C. China, Xizang, Bomi, L. Wang, X.Q. Guo & Y.P. Zeng 3317 (IBSC). D. China, Yunnan, Lijiang, Y.P. Zeng & Y.F. Luo 200 (IBSC). E. China, Xizang, Gyirong, L. Wang, X.Q. Guo & Y.P. Zeng 2732 (IBSC). F. China, Xizang, Mainling, L. Wang, X.Q. Guo & Y.P. Zeng 3295 (IBSC).Published as part of Zeng, You-Pai, Yuan, Qiong & Yang, Qin-Er, 2022, Thalictrum hengduanshanense and T. longistipitatum (Ranunculaceae), two new species from southeastern Xizang and northwestern Yunnan, China, pp. 1-20 in Phytotaxa 571 (1) on page 16, DOI: 10.11646/phytotaxa.571.1.1, http://zenodo.org/record/727042
Thalictrum longistipitatum Y. P. Zeng, Q. Yuan & Q. E. Yang 2022, sp. nov.
No full textThalictrum longistipitatum Y. P. Zeng, Q. Yuan & Q. E. Yang, sp. nov. (Figs. 2, 9‒11). Type:— CHINA. Yunnan: Dêqên, Yunling town, on the way from Xidang spring to Yubeng village, in forests on mountain slopes, alt. 3450 m, 11 July 2021, Y.P. Zeng & Y.F. Luo 528 (holotype IBSC, barcode unavailable; isotypes KUN, PE, barcodes unavailable). Fig. 11. Diagnosis:— Thalictrum longistipitatum is closely related to T. hengduanshanense, but differs by having apically abruptly recurved (vs. straight) pedicels and shorter styles (ca. 1 mm vs. ca. 2 mm long). Description:—Perennial herbs. Roots fibrous. Stem 35‒60 cm tall, distally branched, glandular-pubescent. Leaves 2‒3-ternate; blade triangular, 5‒10 cm long, 4‒10 cm broad; leaflets broadly obovate, obliquely broadly obovate, suborbicular or broadly ovate, 0.5‒2 cm long, 0.5‒2 cm broad, herbaceous, both sides densely glandularpubescent, adaxially green and abaxially pale green, base rounded or subcordate, apex obtuse or acute, 3-lobate; lobes entire or 1‒2-crenate, apex obtuse or acute; veins submerged adaxially, raised abaxially; petioles glandular-pubescent, 0.5‒4 cm long; stipules sheath-like or free, obliquely ovate, membranous, margin entire. Inflorescence a panicle, many-branched, sub-corymbiform, glandular-pubescent. Pedicels 2‒4 cm long, apically abruptly recurved, glandularpubescent. Flowers bisexual, drooping. Sepals 4‒5, broadly elliptic, ovate or broadly ovate, 2‒3 mm long, 1.5‒2 mm broad, abaxially glandular-pubescent, whitish or tinged with pinkish; basal nerves 3‒5, simple or branched. Stamens 9‒12, 2‒3 mm long; filaments narrowly oblanceolate-linear, 1.4‒2.0 mm long, white; anthers oblong, 0.6‒0.9 mm long, ca. 0.5 mm broad, apex obtuse, white. Carpels 3‒6, ca. 2.5 mm long, glandular-pubescent, subsessile; ovary obliquely narrowly obovate, ca. 1 mm long; style ca. 1.2 mm long, apically slightly recurved; stigma lanceolate. Achenes 7‒9 mm long, densely glandular-pubescent, long stipitate; stipe 3‒6 mm long; body narrowly lunate-fusiform, shallowly ribbed, compressed; style persistent, apically recurved, ca. 0.6 mm long. Chromosome number unknown. Phenology:—Flowering from June to August; fruiting from July to September. Distribution and habitat:— Thalictrum longistipitatum is currently known only from northwestern Yunnan (Dêqên) and southeastern Xizang (Bomi, Zayu), China (Fig. 13). It grows in conifer-broadleaved forests on mountain slopes at elevations of 3100‒3450 m above sea level. Etymology:—The specific epithet of the new species, “ longistipitatum ”, refers to its impressively long stipes of achenes. Additional specimens examined (paratypes):— CHINA. Xizang: Bomi, W.Q. Fei 58 (IBSC, barcode unavailable), L. Wang, X.Q. Guo & Y.P. Zeng 3350 (IBSC, barcode unavailable); Zayu, B.S. Li, S.Z. Cheng & Z.C. Ni 7224 (PE00767246), Qinghai-Xizang Exped. 73-230 (KUN0690505, KUN0690506, PE00450030, PE00450031). Yunnan: Dêqên, Qinghai-Xizang Exped. 130 (HITBC, herb. no. 074526), L. Xie & J.F. Mao 136 (PE01569411), L. Xie & J.F. Mao 137 (PE01569412), L. Xie & J.F. Mao 138 (PE01569413). Conservation status:— Thalictrum longistipitatum is currently known only from four populations in northwestern Yunnan (Dêqên) and southeastern Xizang (Bomi, Zayu), China. Both Bomi and Dêqên populations consist of more than 100 individuals. The size of the Zayu population remains unknown. The conservation status of T. longistipitatum should therefore be considered as “Data Deficient (DD)” before adequate information of this species is acquired (IUCN Standards and Petitions Committee 2019).Published as part of Zeng, You-Pai, Yuan, Qiong & Yang, Qin-Er, 2022, Thalictrum hengduanshanense and T. longistipitatum (Ranunculaceae), two new species from southeastern Xizang and northwestern Yunnan, China, pp. 1-20 in Phytotaxa 571 (1) on pages 6-16, DOI: 10.11646/phytotaxa.571.1.1, http://zenodo.org/record/727042
Thalictrum tsawarungense Wang & Wang 1979
No full text<p> <i>Thalictrum tsawarungense</i> Wang & Wang (1979a: 618). Figs. 1, 2B, 6‒11.</p> <p> Type:— CHINA. Xizang (Tibet): Zayu county, Tsa-wa-rung (= Chawalong town), Dzer-nar, on dry slope at margins of woods, alt. 3000 m, September 1935, <i>C.W. Wang 66523</i> (holotype PE00028284!; isotypes GH00057586!, KUN0690108!, NAS00070715!, PE00028283!). Fig. 6.</p> <p> = <i>T. chayuense</i> Wang (1982a: 136), <i>syn. nov.</i></p> <p> Type:— CHINA. Xizang (Tibet): near Zayu county, in mixed woods in ravine, alt. 2700 m, 29 June 1980, <i>Z.C. Ni et al. 297</i> [lectotype PE00470107 (only the right fragment)!, designated here; isolectotype XZ0001665!]. Figs. 1, 2B.</p> <p> <b>Description</b>:—Perennial herbs. Roots fibrous. Stem 30‒80 cm tall, distally branched, glandular-pubescent. Leaves 2‒3-ternate; blade triangular, 5‒15 cm long, 4‒15 cm broad; leaflets broadly obovate, obliquely broadly obovate, suborbicular or broadly ovate, 0.5‒2 cm long, 0.5‒2 cm broad, herbaceous, both sides densely glandular-pubescent, adaxially green and abaxially pale green, base rounded or subcordate, apex obtuse or acute, 3-lobate; lobes entire or 1‒2-crenate, apex obtuse or acute; veins submerged adaxially, raised abaxially; petioles glandular-pubescent, 1‒3 cm long; stipules sheath-like or free, obliquely broadly ovate, membranous, margin entire. Inflorescence a panicle, few-flowered, leafy; rachis glandular-pubescent. Pedicels 1‒1.5 cm long, glandular-pubescent. Flowers bisexual. Sepals 4 or 5, elliptic, broadly elliptic ovate or broadly ovate, 2.2‒3.5 mm long, 1.5‒2.5 mm broad, abaxially sparsely glandular-pubescent, whitish or tinged with pinkish; basal nerves 3. Stamens 7‒13, 2.5‒4 mm long; filaments narrowly oblanceolate-linear, 1.8‒3 mm long, white; anthers narrowly oblong, 0.7‒1 mm long, ca. 0.5 mm broad, apex obtuse, yellowish. Carpels 1‒6, 2.5‒3 mm long, glandular-pubescent, stipitate; stipe ca. 0.3 mm long; ovary obliquely narrowly obovate, ca. 1 mm long; style ca. 2 mm long, straight or apically slightly recurved; stigma linear. Achenes 4.5‒7 mm long, glandular-pubescent, conspicuously stipitate; stipe 1‒2 mm long; body broadly compressed-lunate, shallowly ribbed; style persistent, apically slightly recurved.</p> <p> <b>Phenology</b>:—Flowering from June to August; fruiting from July to September.</p> <p> <b>Distribution and habitat</b>:— <i>Thalictrum tsawarungense</i> is widely distributed in western Sichuan and southeastern Xizang, China (Fig. 12). It grows, often together with <i>Berberis</i>, <i>Clematis</i>, <i>Quercus</i>, <i>Ribes</i>, <i>Rosa</i>, or <i>Spiraea</i> species, in bushes in ravine or on slopes, in forests, or at forest margins at elevations of 2000–3800 m above sea level.</p> <p> <b>Additional specimens examined</b>:— CHINA. Sichuan: Barkam, <i>Anonymous 205</i> (NAS00187781, NAS00187782), <i>K.Y. Lang, L.Q. Li & Y. Fei 2126</i> (KUN0691915, PE01108922, PE01108923); Daocheng, <i>Sichuan Econ. Plant Exped. 105</i> (CDBI0026303, CDBI0026304, CDBI0026305); Jinchuan, <i>S. Jiang et al. 1078</i> (KUN0690107, PE00450428, PE01040617, SZ00092639), <i>H. Li 77456</i> (IBSC0090552, NAS, herb. no. 525773, PE00450425, PE00450426, PE00450427, WUK, herb. no. 234513); Kangding, <i>X.J. He & Q.S. Zhao 183636</i> (SZ00578505, SZ00578517, SZ00578518), <i>Kangding-Dawu Exped. 247</i> (SM704604894, SM, herb. no. 0335371), <i>Y.P. Zeng & Q.L. Huang 411</i> (IBSC, barcode unavailable), <i>Z.J. Zhao, J.B. Shi & D.G. Fan 114328</i> (CDBI0026498, SZ00092081, SZ00092082); Xiangcheng, <i>Xiangcheng Exped. 410</i> (SM704604614, SM, herb. no. 0034924). Xizang (Tibet): Bomi, <i>Y.T. Chang & K.Y. Lang 462</i> (PE00450382, PE00450383), <i>W.Q. Fei 60</i> (IBSC, barcode unavailable), <i>Inst. Bio. Xizang Exped. 376</i> (HNWP, herb. nos. 37148, 83680, 83681), <i>Inst. Bio. Xizang Exped. 658</i> (HNWP, herb. nos. 37732, 84063), <i>P.C. Kuo & W.Y. Wang 21884</i> (HNWP, herb. no. 66668), <i>T. Naito et al. 983</i> (PE 02032612), <i>Z.C. Ni et al. 127</i> (PE00450376, PE00450377, XZ0001695, XZ0001736), <i>L. Wang, X.Q. Guo & Y.P. Zeng 3313</i> (IBSC, barcode unavailable), <i>L. Wang, X.Q. Guo & Y.P. Zeng 3317</i> (IBSC, barcode unavailable), <i>L. Wang, X.Q. Guo & Y.P. Zeng 3351</i> (IBSC, barcode unavailable), <i>L. Xie BM 08</i> (PE00471599, PE00471600, PE00471601), <i>Xizang Inst. Bio. Plant Res. Exped. 3976</i> (PE01040620, XZ0001698), <i>T.S. Ying & D.Y. Hong 650136</i> (PE01962275, PE01962276), <i>T.S. Ying & D.Y. Hong 650171</i> (PE00450399, PE00450400, PE00450401), <i>T.S. Ying & D.Y. Hong 650251</i> (PE00450396), <i>T.S. Ying & D.Y. Hong 650502</i> (PE00450402, PE00450403); Lhunze, <i>Qinghai-Xizang Exped. Suppl. Group 750500</i> (HNWP, herb. nos. 51135, 96700, KUN0689479, PE00450386, PE00450387), <i>Qinghai-Xizang Exped. Suppl. Group 750543</i> (HNWP, herb. nos. 51177, 77736, KUN0690358, KUN0690359, PE00450384, PE00450385); Mainling, <i>B.S. Li & S.Z. Cheng 5394</i> (PE00450408, PE00450409), <i>Qinghai-Xizang Exped. Suppl. Group 750915</i> (KUN0689475, KUN0689476, PE00450388); Markam, <i>W.Q. Fei 17</i> (IBSC, barcode unavailable); Nyingchi, <i>W.Q. Fei 66</i> (IBSC, barcode unavailable), <i>J. Luo & S.L. Wang LuoJian-XZ-09113</i> (PE01900257); Zayu, <i>Y.P. Zeng & Q.L. Huang 540</i> (IBSC, barcode unavailable), <i>Y.P. Zeng & Q.L. Huang 553</i> (IBSC, barcode unavailable), <i>Y.P. Zeng & Q.L. Huang 565</i> (IBSC, barcode unavailable), <i>Y.P. Zeng & Q.L. Huang 568</i> (IBSC, barcode unavailable).</p>Published as part of <i>Zeng, You-Pai, Yuan, Qiong & Yang, Qin-Er, 2022, Lectotypification of Thalictrum chayuense (Ranunculaceae), with its reduction to the synonymy of T. tsawarungense, both described from Zayu in southeastern Xizang (Tibet), China, pp. 184-198 in Phytotaxa 548 (2)</i> on page 196, DOI: 10.11646/phytotaxa.548.2.4, <a href="http://zenodo.org/record/6597749">http://zenodo.org/record/6597749</a>
Thalictrum secundum Edgeworth 1846
No full textThalictrum secundum Edgeworth (1846: 26). Figs. 7‒9. Type:— INDIA. Himachal Pradesh: Chúr (= Choor), Badhrinath, alt. 11000‒13000 ft., in rupibus, 1844, M.P. Edgeworth 16 (holotype K000694162!). Fig. 9. Description:—Perennial herbs. Roots fibrous. Stem 30‒90 cm tall, distally branched, pendulous. Leaves 1‒2-ternate, subsessile; blade triangular, 2‒5 cm long, 1.5‒3 cm broad; leaflets broadly obovate, obliquely broadly obovate, suborbicular or broadly ovate, 0.5‒2 cm long, 0.5‒2 cm broad, herbaceous, adaxially green to glaucous, abaxially glaucous to whitish, base cuneate, rounded or subcordate, apex obtuse or acute, inconspicuously 3-lobate to deeply 3-lobate or incised; lobes entire or 1‒2-dentate, apex obtuse or acute; veins flat adaxially, slightly raised abaxially; stipules free, obliquely oblong, membranous, margin dentate. Inflorescence a panicle. Pedicels 0.5‒1 cm long. Flowers bisexual, drooping. Sepals 4, narrowly elliptic, 3‒4 mm long, 1.5‒2 mm broad, purplish; basal nerves 3‒5, simple or branched. Stamens 10‒15, 7‒10 mm long; filaments filiform, 4‒6.5 mm long, purplish; anthers linear, 3‒3.5 mm long, ca. 0.5 mm broad, apex obtuse or mucronate, yellowish tinged with brick-red. Carpels 5‒8, ca. 2.5 mm long, sparsely glandular-pubescent, sessile; ovary obliquely obovate, ca. 1 mm long; style ca. 1.5 mm long, straight; stigma narrowly triangular, winged, purplish. Achenes 4‒5 mm long, sparsely glandular-pubescent, subsessile; body obliquely obovate, shallowly ribbed, flattened-compressed; style persistent, straight. Phenology:—Flowering from July to August; fruiting from August to September. Distribution and habitat:— Thalictrum secundum is distributed in Afghanistan, China (southern Xizang), northwestern and northeastern India, Nepal, and northern Pakistan (Fig. 11). It grows on damp cliffs in ravines, forests or at forest margins at elevations of 2300‒4000 m above sea level. This species is reported here for China for the first time. Additional specimens examined:— CHINA. Xizang: Gyirong, Y.H. Tan et al. XTBG-HIM0913 (HITBC), L. Wang, X.Q. Guo & Y.P. Zeng 2728 (IBSC), L. Wang, X.Q. Guo & Y.P. Zeng 2750 (IBSC). INDIA. Himachal Pradesh: Kulu, M.P. Edgeworth 1055 (K), J.R. Drummond 8323 (BM, K), R.A.M. Geesteranus 14074 (K). Jammu & Kashmir: Kioonthul, J.F. Royle s.n. (E); Pahalgam, R.R. Stewart 5961 (K), R.R. Stewart 9403 (K), R.R. Stewart 23239 (K). Precise locality unknown, J.R. Reid s.n. (E), J.L. Stewart s.n. (E), T. Thomson s.n. (K). Punjab: Bashahr, J.H. Lace 401 (E, K); Chamba, J.H. Lace 1462 (E), J.H. Lace 1663 (E); Chenab, B.H. Banden-Powell 41 (K); Lahul, N.L. Bor 15506 (K), W. Koelz 867 (NAS, P). Sikkim: R.E. Cooper 477 (E). Uttarakhand: Dehradun, J.S. Gamble 27321 (K), K. Nand 189 (E), M.B. Raizada 7404 (E); Garhwal, G.E. Benham s.n. (BM), J.F. Duthie 767 (K), M.P. Edgeworth 17 (K), Herb. Falconer 15 (K, L, P); Kumaon, J.F. Duthie 52780 (K), R. Strachey & J.E. Winterbottom 5 (K, P). NEPAL. Baglung: between Farkama and Yamakhar, H. Tabata et al. 3736 (BM, KUN). Gorkha: Lungdang Gompa, M. Suzuki et al. 9470254 (E, TI). Jumla: Maharigaon, O. Polunin, W.R. Sykes & L.H.J. Williams 190 (BM, E). Precise locality unknown, J.F. Duthie 5277 (K). PAKISTAN. Hazara: Changla Gali, R.R. Stewart s.n. (K); Dunga Gali, R.R. Stewart 26450a (E), R.R. Stewart 28782a (E). Notes:—According to Riedl & Nasir (2011) and Ghimire et al. (2021), Thalictrum pauciflorum Royle (1834: 52), T. macrostigma Edgeworth (1846: 26), T. hazaricum Qureshi & Chaudhri (1979: 11), and T. secundum var. hazaricum Riedl (1979: 361) should all be placed in synonymy with T. secundum. We have checked the type material of all these names and accept the treatment.Published as part of Zeng, You-Pai, Yuan, Qiong & Yang, Qin-Er, 2022, Thalictrum virgatum var. obtusifolium (Ranunculaceae), a new synonym of T. virgatum, with the new record of the morphologically similar Himalayan species T. secundum for China, pp. 193-208 in Phytotaxa 570 (2) on pages 202-207, DOI: 10.11646/phytotaxa.570.2.5, http://zenodo.org/record/725657
The pressure gradient for heterogeneous flow of coal, sand and iron in pipelines
No full textThe existing relationships based on Durand's method to predict pressure gradients for slurry flow in pipelines appear to be inadequate when accounting for a wide range of variables such as particle size and relative density as well as concentration. Using the coal, sand and iron ore data collected from various literature sources with the aid of non-dimensional analysis, new equations for the case of the heterogeneous flow regime were derived on the base of nondimensional parameters. The equations have the same structure for each material considered, but the coefficients are different.Civil Engineering and Geoscience
Method of Molerus and Wellman to Compute the Pressure Drop of Slurry Transport in Horizontal Pipes
No full textIn the literaturey many methods for the calculation of pipeline hydraulic transport of solids have been published. Their degree of exactness and applicability is variabie and therefore it is hard to the designer to make a convincible decision regarding their practical use. A new concept for the computation of slurry hydraulic transport in horizontal pipes proposed by O. Molerus and P. Wellmann based on numerous measurement data seems to provide a practicle method to predict the head loss in slurry pipeline transport. In this report the new method is introduced and a number of new experimental results to verify the new concept. Furthermore some suggestions are presented te impreve the new methed.Hydraulic EngineeringCivil Engineering and Geoscience
Thalictrum atriplex , Finet & Gagnepain 1903
No full textThalictrum atriplex Finet & Gagnepain (1903: 305). Figs. 1‒8. Type:— CHINA. Sichuan: Tongolo (= Dongeluo), près Ta-tsien-lou (now Kangding county), 5 August 1893, J.A. Soulié 391 (lectotype P00145766!, designated here; isolectotypes K000694194!, P00145767!, P00145768!, P00145769!). Figs. 4, 5. = T. spiristylum Wang (2017: 682), syn. nov. Type:— CHINA. Yunnan: Ninglang county, Cuiyu town, Shuicaoba village, on slopes in ravine, alt. 3100 m, 10 July 1981, Y.F. Han et al. 81-1070 (holotype PE00477951!; isotypes PE00477950!, PE00477952!). Fig. 1. Description:—Perennial herbs, glabrous throughout. Roots fibrous. Stem 40–120 cm tall, striate, distally branched, glabrous. Leaves 2–4-ternate; leaf blade pentagonal, 7–30 cm long, 7–30 cm broad; leaflets ovate, obovate, obliquely ovate or broadly ovate, 0.8–4 cm long, 0.8–4 cm broad, base cuneate, rounded or subcordate, apex obtuse or acute, 3-lobate; lobes entire or 2‒4-dentate or 2‒4-crenate, obtuse or acute; nerves obscure adaxially, prominent abaxially; petioles 0.5–5 cm long, with stipules at base; stipules obliquely oblong, membranous, margin torn. Inflorescence a panicle, leafy, raceme-like; branches narrow. Pedicels 1‒3 (5) mm long. Flowers bisexual, erect. Sepals elliptic, narrowly oblong or narrowly obovate, 2‒2.5 mm long, 1.3‒1.8 mm broad, margin membranous, 1-nerved, greenish or greenish white. Stamens 5‒16, 2.5‒4 mm long; filaments 2‒3.5 mm long, filiform, apex slightly dilatate, greenish or greenish white; anthers 0.5‒1 mm long, ovate or elliptic, apex mucronate, pale yellow. Carpels 4–8, subsessile; ovaries obliquely compressed-ovoid; styles ca. 1.5 mm long, apex dorsally uncinate or circinate; stigmas inconspicuous. Achenes 3.5‒5 mm long, subsessile; body obliquely compressed-ovoid, inconspicuously ribbed when dry; style persistent, dorsally uncinate or circinate at apex. Phenology:—Flowering from June to August; fruiting from July to September. Distribution and habitat:— Thalictrum atriplex is widely distributed in southwestern Qinghai, western Sichuan, northwestern Yunnan, and southeastern Xizang, China (Fig. 13). It grows in bushes or sparse forests, along forest margins or on grassy slopes at elevations of 2500‒4270 m above sea level. Typification:—In the protologue of Thalictrum atriplex, Finet & Gagnepain (1903) cited a single collection, i.e. J.A. Soulié 391. We have been able to trace five sheets of this collection, with one at K (barcode K000694194) and another four at P (barcodes P00145766, P00145767, P00145768, P00145769). These sheets are all well preserved and match the original description, and thus are syntypes, as the author did not specify which one was used to prepare the original description. In conformity with ICN Art. 9.10 and Art. 9.11 (Turland et al. 2018) and as discussed by McNeill (2014), a lectotypification is proposed for T. atriplex. In the above, the P sheet (barcode P00145766) that bears a dissection drawing has been designated as the lectotype, and the other four sheets cited as isolectotypes. Additional specimens examined:— CHINA. Qinghai: Yushu, T.N. Ho et al. 2594 (BM, barcode unavailable, E00064269, HNWP, herb. no. 0287328, PE00447985). Sichuan: Baiyu, D.E. Boufford et al. 36969 (PE01459307); Barkam, C.Y. Chang & H.F. Chow 22644 (KUN0690567, NAS00186888, PE00447961, SZ00091928), C.Y. Chang & H.F. Chow 22837 (KUN0690576, NAS00186890, PE00447959, SZ00091927, WUK, herb. no. 252334), C.Y. Chang & H.F. Chow 22987 (KUN0690529, NAS00186887, PE00447962, SZ00091945, WUK, herb. no. 242216), L. Xie 200109020 (PE01569323), L. Xie 200109021 (PE01569324), L. Xie 200209008 (PE01569384); Batang, K.Y. Lang, L.Q. Li & Y. Fei 2307 (PE01108726, PE01108727), K.Y. Lang, L.Q. Li & Y. Fei 2328 (KUN0691916, PE01108735, PE01108734); Daocheng, Anonymous 515 (SM704604444), D.E. Boufford et al. 28108 (E00293940, PE01578928), Sichuan Econ. Plant Exped. 171 (CDBI0025918, CDBI0025920, CDBI0025921), Sichuan Econ. Plant Exped. 198 (CDBI0025932), Sichuan Veg. Exped. 2060 (CDBI0025923, CDBI0025924, KUN0689148, PE00427859); Dawu, Anonymous 140 (SM704604437), Anonymous 141 (SM704604438), Anonymous 5558 (CDBI0025926, CDBI0025930, CDBI0025931, PE00447942), D.E. Boufford et al. 27697 (E00320420, PE01458750), K.L. Chu 7337 (NAS00186891, NAS00186892, NAS00186894), P.C. Kuo & W.Y. Wang 20923 (HNWP, herb. no. 65655, KUN0692064, NAS, herb. no. 504538, WUK, herb. no. 344291), Sichuan Med. Res. Exped. 15327 (CDBI0025912, NAS00186889), Z.P. Wang et al. 931 (KUN0690578, WUK, herb. nos. 315057, 316613), T.S. Ying et al. 4646 (PE00447967, SZ00091939, SZ00091940, SZ00091941); Dege, Y.W. Tsui 5063 (PE00447957); Jinchuan, No. 8 Forest Manag. Exped. 2336 (PE00447966); Jiulong, D.E. Boufford et al. 33109 (KUN0769895, KUN0769896, PE01459309), D.E. Boufford et al. 33271 (KUN0770335, KUN0770336, PE01459308), T.T. Yu 6787 (KUN0689149, KUN0689150), Y.P. Zeng & Q.L. Huang 384 (IBSC, barcode unavailable); Kangding, Anonymous 4823 (CDBI0025914, CDBI0025915, CDBI0025933, PE00447949), X.J. He & Q.S. Zhao 180308 (SZ, herb. no. 512295), X.J. He & Q.S. Zhao 183754 (SZ, herb. no. 594447), S. Jiang et al. 2060 (KUN0689155, PE00447955, SZ00091942), K.C. Kuan & W.T. Wang 656 (PE00447948, PE00447954, PE00447965, PE00447968, PE01040678), C.R. Lancaste 941A (PE00447946), K.Y. Lang, L.Q. Li & Y. Fei 700 (PE01108728, PE01108741), K.Y. Lang, L.Q. Li & Y. Fei 1076 (KUN0689159, PE01108738, PE01108739), Y.L. Peng et al. Gaoxf0511 (CDBI0207060), J.A. Soulié 2365 (P00145762), J.A. Soulié 3365 (P00145764, P00145765), Y.W. Tsui 4194 (PE00447958), Y.P. Zeng & Q.L. Huang 365 (IBSC, barcode unavailable), Y.P. Zeng & Q.L. Huang 370 (IBSC, barcode unavailable), Y.P. Zeng & Q.L. Huang 374 (IBSC, barcode unavailable), Z.J. Zhao et al. 114956 (CDBI0026464, SZ00091929), Y.C. Zhu 29645 (CDBI0025904); Lixian, W.K. Hu & D.Z. Deng 1893 (SZ00091926); Muli, C.Y. Wu et al. 152 (KUN0689889), S.K. Wu 2607 (KUN0689151), Q.S. Zhao 6276 (CDBI0025910, SZ00091935), Q.S. Zhao et al. 6745 (CDBI0025929, SZ00091931), Q.S. Zhao et al. 7840 (CDBI0025936, SZ00091936); Xiangcheng, Anonymous 989 (CDBI0025919), Anonymous 4361 (CDBI0025934), D.E. Boufford et al. 30691 (KUN0769874, PE01459304), Qinghai-Xizang Exped. 4704 (CDBI0025937, HITBC, herb. no. 003442, KUN0689156, PE01108742), Xiangcheng Exped. 344 (SM704604439); Xinlong, Y.P. Zeng & Q.L. Huang 400 (IBSC, barcode unavailable); Yajiang, D.E. Boufford et al. 35843 (KUN0770303, PE01459306), C.L. Wu 40983 (NAS, herb. no. 492149), Yajiang Exped. 124 (SM704604441); Zamtang, L. Wang, X.Q. Guo & Y.P. Zeng 3570 (IBSC, barcode unavailable), Y.H. Wu 31-004 (HNWP, herb. no. 0205545), Y.H. Wu 31-023 (HNWP, herb. no. 0205558). Xizang (Tibet): Bomi, Anonymous 1063 (PE00558464), Y. Fei et al. 129 (KUN0689141), Y. Fei et al. 278 (KUN0689143), Inst. Bio. Xizang Exped. 637 (HNWP, herb. no. 37753), L. Wang, X.Q. Guo & Y.P. Zeng 3316 (IBSC, barcode unavailable); Chagyab, Qinghai-Tibetan Sci. Exped. 12282 (HNWP, herb. no. 62155, KUN0690780, PE00427873); Cona, C.Y. Wu et al. 75-1100 (HNWP, herb. no. 54108, KUN0689163, PE00470001); Gongbo’gyamda, Y.T. Chang & K.Y. Lang 1374 (PE00447990), Y.T. Chang & K.Y. Lang 2754 (PE00447989), P.C. Kuo & W.Y. Wang 21981 (HNWP, herb. no. 66731), F. Ludlow, G. Sherriff & H.H. Elliot 14131 (BM, barcode unavailable), Qinghai-Xizang Exped. 74-3704 (KUN0689138, PE00447996); Gyirong, PE-Xizang Exped. 4153 (PE, herb. no. 2446929); Jomda, Inst. Bio. Xizang Exped. 2202 (HNWP, herb. no. 38489), Qinghai-Xizang Sci. Exped. 12415 (HNWP, herb. no. 61331, KUN0689160, PE00427870), L. Wang, X.Q. Guo & Y.P. Zeng 3431 (IBSC, barcode unavailable); Lhunze, Qinghai-Xizang Exped. Suppl. Group 750421 (HNWP, herb. no. 96821, KUN0689162, PE00447999); Mainling, F. Ludlow, G. Sherriff & G. Taylor 5680 (BM, barcode unavailable), Z.C. Ni et al. 2870 (PE00447986), Qinghai-Xizang Exped. Suppl. Group 750911 (HNWP, herb. no. 51537, KUN0689140, PE00447997), Xizang Trad. Med. Exped. 3806 (HNWP, herb. no. 32862, PE00447994); Markam, W.Q. Fei 22 (IBSC, barcode unavailable); Nangxian, S. Bowes Lyon 11024 (E00080172), F. Ludlow & G. Sherriff 2690 (BM, barcode unavailable), L. Wang, X.Q. Guo & Y.P. Zeng 3209 (IBSC, barcode unavailable); Nyingchi, J. Luo & S.L. Wang Luojian-XZ-09261 (HNWP, herb. no. 0288254, PE01898340), Z.C. Ni et al. 1771 (PE00447988, XZ0001682), Xizang Inst. Bio. Plant Res. Exped. 3453 (XZ0001679); Precise locality unknown, S.X. Jia 341 (PE00447947, PE00447950), P.C. Tsoong 5521 (PE00447945); Qamdo, L. Wang, X.Q. Guo & Y.P. Zeng 3407 (IBSC, barcode unavailable), C.Y. Wu 4694 (KUN0689145); Zayu, R.F. Huang 556 (HNWP, herb. no. 85417), X.H. Jin et al. DLJ-ET 1989 (PE02006357), C.W. Wang 65517 (IBSC0090116, KUN0689153, NAS00186897, PE00447964, WUK, herb. no. 35700), C.W. Wang 65599 (IBSC0090115), Y.P. Zeng & Q.L. Huang 550 (IBSC, barcode unavailable); Zhanang, PE-Xizang Exped. 5263 (PE, herb. no. 2553942). Yunnan: Deqen, D.M. Anderson et al. 170 (KUN1280720), J.W. Gregory & C.J. Gregory s.n. (BM, barcode unavailable), Hengduan Exped. Veg. Group 4648 (PE01108732), IBCAS Hengduan Exped. 3459 (PE01108745), Qinghai-Xizang Exped. 2318 (CDBI0025938, HITBC, herb. no. 003451, KUN0689136, PE01108743), H. Sun & Z.G. Qian 709 (KUN0689173), L. Xie DQ 1 (PE00471477), L. Xie DQ 2 (PE00471475), L. Xie & J.F. Mao 114 (PE01569442), L. Xie & J.F. Mao 115 (PE01569441), L. Xie & J.F. Mao 148 (PE01569439), J.S. Yang 8531 (KUN0689178), J.S. Yang 8541 (KUN0690328), J.S. Yang 8686 (KUN0689177), T.T. Yu 9515 (KUN0689130, PE00447983), T.T. Yu 10185 (BM, barcode unavailable, KUN0689132, PE00447972), T.T. Yu 10511 (BM, barcode unavailable, KUN0690768, PE00447982), T.T. Yu 10568 (BM, barcode unavailable, KUN0689133, PE00447973), Y.P. Zeng & Y.F. Luo 525 (IBSC, barcode unavailable); Gongshan, T.T. Yu 6787 (PE00447974); Lijiang, Anonymous 38 (IBSC0090788, KUN0689183), Anonymous 4104 (KUN1265294), K.M. Feng 21352 (KUN0689170, NAS, barcode unavailable, PE00447977, SZ00091943), K.M. Feng 22486 (HNWP, herb. no. 46167, KUN0689181, PE00447980), C. Schneider 2023 (K, barcode unavailable), C.W. Wang 70849 (KUN0690795, NAS00186896, PE00447978, WUK, herb. no. 66448); Shangri-la, Anonymous 63-3336 (KUN0689186), K.M. Feng 1723 (KUN0689167), K.M. Feng 23452 (KUN0689180, PE00447979), H.H. Kong & L. Li YQE3023 (IBSC, barcode unavailable), C.Y. Wu 4278 (KUN0689174), L. Xie ZD 9 (PE00471478), L. Xie & J.F. Mao 71 (PE01569398), L. Xie & J.F. Mao 72 (PE01569438), L. Xie & J.F. Mao 73 (PE01569437), L. Xie & J.F. Mao 91 (PE01569479), L. Xie & J.F. Mao 97 (PE01569435), J.S. Yang 7649 (KUN0690891), J.S. Yang 8002 (KUN0689179), J.S. Yang 84-551 (KUN1265273), Q.E. Yang & H.Z. Kong 98-255 (PE00471474), Q.E. Yang & Q. Yuan 1821 (PE 02032593), T.T. Yu 12346 (KUN0689131, PE00447971), Y.P. Zeng & Y.F. Luo 503 (IBSC, barcode unavailable), Zhongdian Exped. 683 (KUN0689189); Weixi, C.W. Wang 63686 (PE00447981), Q.E. Yang & Q. Yuan 2052 (PE, herb. no. 2430710). Notes:— The specimen J.A. Soulié s.n. (MPU023569), although collected from Kangding in western Sichuan, the type locality of Thalictrum atriplex, does not belong to original material of this species. In the protologue of T. atriplex, Finet & Gagnepain (1903) did not refer to this specimen, citing only J.A. Soulié 391. It was wrongly annotated as an isosyntype of T. atriplex on the determination slip. It actually belongs to a new species which we will describe elsewhere. Of the collections cited under Thalictrum atriplex by Wang (2018), the collection information of some were wrongly given and some were probably misidentified. The collection Z.M. Zhang & H.F. Chow 22837 from Barkam in western Sichuan should be corrected as C.Y. Chang & H.F. Chow 22837. The collection Hengduan Exped. Veg. Group 8648 from Deqen in northwestern Yunnan should be corrected as Hengduan Exped. Veg. Group 4648. The collections T.S. Ying & D.Y. Hong 650211 from Bomi in southeastern Xizang, Y.W. Tsui 4248 from Garze and C.S. Liu 695, H.L. Tsiang 36027 and K.C. Kuan & W.T. Wang 69 all from Kangding in western Sichuan (four sheets shown in Figure 14) should not belong to T. atriplex because the leaflets are smaller (0.5–1.5 cm long and broad vs. 0.8–4 cm long and broad) (Figs. 2G, 7F, 8F, 14) and the pedicles are longer, over 5 mm long (vs. 1‒3 (5) mm long) (Figs. 2N, 3B, 7L, 8M, 14B, D). In general appearance they resemble T. uncatum but differ by having 6‒14-denticulate (vs. 3-lobate) leaflets (Figs. 11C, D, 12C, D, 14), shorter styles ca. 1 mm (vs. ca. 2 mm) long (Figs. 11I, 12H, 14A, C), and achenes subsessile, obliquely compressed-ovoid (vs. shortly stipitate with the stipes 1‒2 mm long, compressed-lunate) (Figs. 11K, 12J, 14B, D). Further studies are needed to determine the identity of these collections.Published as part of Zeng, You-Pai, Yuan, Qiong & Yang, Qin-Er, 2022, Thalictrum spiristylum (Ranunculaceae), described from northwestern Yunnan, China, is merged with T. atriplex, pp. 1-20 in Phytotaxa 538 (1) on pages 6-19, DOI: 10.11646/phytotaxa.538.1.1, http://zenodo.org/record/633196
Species diversity and population density affect genetic structure and gene dispersal in a subtropical understory shrub
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No full textTussentijds verslag betreffende metingen van uitwisselingen tussen rivier en haven
No full textDe sedimentatie in een haven wordt o.a. bepaald door de wateruitwisselingen door de havenmond en de stromingspatronen in de haven. Dit onderzoek beperkt zich in hoofdzaak tot het geval van door entrainment (meeslepen) van water uit het havenbekken in de menglaag tussen de rivier en het havenbekken veroorzaakte uitwisseling. Afgezien wordt van uitwisselingsdebieten verband houdend met dichtheidsgelaagdheid of getijvariatie. Slechts zijdelings wordt ingegaan op wateruitwisseling door halingen in het systeem havenbekken-rivier en door variatie over de diepte van de stroming in de havenmond. Wel wordt aan de invloed van wateronttrekking of lozing in het havenbekken op uitwisselingsdebiet en op het stromingspatroon in de haven aandacht besteed. Het doel van het onderzoek is informatie te verkrijgen over de uitwisseling van slib door de havenmond. Hiervoor is kennis van de uitwisselingsdebieten door de havenmond, van de concentratieverschillen aan slib tussen binnenkomend en uittredend water en daarmee van de verblijftijden van het water in verschillende gedeelten van de haven onontbeerlijk. Tevens is het de bedoeling na te gaan in hoeverre een betrouwbaar1-dimensionaal transportmodel voor het slib in de haven mogelijk is en wat de te gebruiken coefficienten in dat geval zijn. Eventueel kan het onderzoek leiden tot suggesties voor een beter toepasbaar model. Ook kunnen de gevonden stromingspatronen dienen als controle voor berekeningen met 2DH-rekenmodellen zoals WAQUA.Hydraulic EngineeringCivil Engineering and Geoscience
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