1,721,185 research outputs found
FIGURE 2. Athyrium aberrans Liang Zhang & Li Bing Zhang.—A. Habit.—B. Adaxial lamina.—C in Athyrium aberrans (Athyriaceae), a new species of the lady ferns from southeastern Xizang, China, based on morphological and molecular evidence
No full textFIGURE 2. Athyrium aberrans Liang Zhang & Li Bing Zhang.—A. Habit.—B. Adaxial lamina.—C. Abaxial lamina, an arrow indicates a bulbil on the rachis.—D. Portion of pinnae showing sori and veins.—E. Rhizome with petiole bases.—F. Spore.Published as part of Qiu, Yong-Ling, Zhang, Lin, Zhang, Li-Bing, Zhou, Xin-Mao & Zhang, Liang, 2022, Athyrium aberrans (Athyriaceae), a new species of the lady ferns from southeastern Xizang, China, based on morphological and molecular evidence, pp. 165-172 in Phytotaxa 533 (3) on page 168, DOI: 10.11646/phytotaxa.533.3.2, http://zenodo.org/record/604843
Polystichum yaanense (Dryopteridaceae), a Remarkable New Species from Sichuan, China
No full textA new fern species, Polystichum yaanense Liang Zhang & Li Bing Zhang (Dryopteridaceae), is described from Bifengxia, or the Bluish Green Peak Canyon, in Ya'an Prefecture in Sichuan Province, China. The new species is morphologically unique in having yellowish green leaves, a thin but. firm leaf texture, veins visible on the adaxial leaf surface, and narrowly ovate to lanceolate rachis scales. Ecologically, the new taxon grows in acidic soils, in contrast to other species in section Haplopolystichum Tagawa. Polystichum yaanense is considered to be Critically Endangered (CR), based on IUCN Red List criteria. Ten other species of Polystichum Roth occur in the type locality within the same canyon; all 11 species are distinguished from one another by a dichotomous key based on morphology
Reducing the fern genus Dryopsis to Dryopteris and the systematics and nomenclature of Dryopteris subgenus Erythrovariae section Dryopsis (Dryopteridaceae)
No full textZhang, Li-Bing (2012): Reducing the fern genus Dryopsis to Dryopteris and the systematics and nomenclature of Dryopteris subgenus Erythrovariae section Dryopsis (Dryopteridaceae). Phytotaxa 71 (1): 17-27, DOI: 10.11646/phytotaxa.71.1.4, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.71.1.
Taxonomic and nomenclatural notes on the fern genus Polystichum (Dryopteridaceae) in China
No full textZhang, Li-Bing (2012): Taxonomic and nomenclatural notes on the fern genus Polystichum (Dryopteridaceae) in China. Phytotaxa 60 (1): 57-60, DOI: 10.11646/phytotaxa.60.1.8, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.60.1.
Callicarpa qianyiyongii (Lamiaceae): A new name for the Flora of China
No full textZhang, Li-Bing (2014): Callicarpa qianyiyongii (Lamiaceae): A new name for the Flora of China. Phytotaxa 178 (1): 57-58, DOI: 10.11646/phytotaxa.178.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.178.1.
Athyrium aberrans Liang Zhang & Li Bing Zhang, OL 2022, sp. nov.
No full textAthyrium aberrans Liang Zhang & Li Bing Zhang, sp. nov. (Figure 2). Type:— CHINA. Xizang: Nyingchi, Medog County, Beibeng Xiang, Deergong Village, elev. 1640 to 1650 m, 29°11’N / 95°08’E, on open areas in wetlands, 23 November 2018, Liang Zhang 2929 (holotype KUN1519962, Figure 3; isotypes KUN & PYU!). Diagnosis:— Athyrium aberrans is most similar to A. falcatum by having linear-lanceolate and once pinnate laminae, falcate-ovate pinnae, and linear or oblong sori, but differs the latter in having purplish petioles and rachises, finely toothed pinna margins, and a bulbil on the rachis below the lamina apex. Plants perennial, evergreen, terrestrial. Rhizome short, erect, with many glabrous and black roots. Frond caespitose, 5–10 per rhizome, 20–35 cm tall, 5–6.5 cm wide; petiole black at base, upward purplish, 6–9 cm, 0.8–1.3 mm in diam. at middle, adaxially canaliculated, base scaly, scale light brown, linear-lanceolate, 3.1–4 mm long, 0.5–0.9 mm wide, scattered, margins entire, upper middle parts twisted. Lamina linear-lancoelate, thickly papery, once pinnate, 13–25 × 2.8–6.5 cm, apex acuminate, slightly narrowed toward base from below middle of lamina; rachises 0.4–0.6 mm in diam. at middle, glabrous, purplish, with a scaled bulbil at upper part of rachis, adaxially sulcate. Pinnae (8–)10–19 pairs, 1.4–3.5 × 0.9–1.4 mm, alternate, falcate-ovate, shortly petiolate, subspreading, basal 2-3 pairs of pinnae slightly reflexed and smaller, nearly 2/3 to 4/5 as long as middle ones, pinna apices rounded, bases truncate or cordate and slightly auriculate on acroscopic and basiscopic sides, margins toothed; venation pinnate, visible on both sides, slighted raised abaxially, lateral veins free, 10–14 pairs, forked. S ori linear or oblong, 8–13 pairs per pinna, 2–4.5 mm long, close to midribs, basal 2–6 pairs of pinnae often sterile; indusia linear or oblong, the same length as sori, membranous, entire, persistent. Spores bilateral, elliptic in polar view, bean-shaped in equatorial view; perispore surface with papillate microstructure on rugulose ornamentation. Additional specimens examined (paratype):— CHINA. Xizang: Nyingchi, Medog County, Beibeng Xiang, Deergong Village, elev. 1640 to 1650 m, 29°11’N / 95°08’E, wetlands in forests, 22 June 2021, Liang Zhang et al. 4401 (KUN!, PYU!). Geographical distribution:—Currently, Athyrium aberrans is only found in Medog County, Xizang, China and may represent a species endemic to Xizang, China. Ecology: — Athyrium aberrans was observed to be terrestrial in wetlands in the open areas in the forests of the Deergong Basin, at elevations between 1640 and 1650 m. High humidity and sufficient light are important for the growth of the new species. IUCN Red List category: —Only two populations with about 40 individuals of Athyrium aberrans were found. The status of the new species can be classified as Critically Endangered (CR), based on current information and following the International Union for Conservation of Nature and Natural Resources (IUCN) guidelines (IUCN, 2011), but more extensive fieldwork focusing on the similar habit of the type locality in the nearby mountains is needed to accurately assess its conservation status. Etymology: — The species epithet from the Latin, aberrans, abnormal, referring to purplish stipe and rachis and scaled bulbil of the new species which is uncommon in the genus. Besides, the new species could be confused with some species of Diplazium Swartz (1801: 61), D. longifolium T. Moore (1857: 141) for example. Vernacular name: — ǿ异fiǎƀ (qi yi ti gai jue, which means a special species of Athyrium).Published as part of Qiu, Yong-Ling, Zhang, Lin, Zhang, Li-Bing, Zhou, Xin-Mao & Zhang, Liang, 2022, Athyrium aberrans (Athyriaceae), a new species of the lady ferns from southeastern Xizang, China, based on morphological and molecular evidence, pp. 165-172 in Phytotaxa 533 (3) on pages 167-168, DOI: 10.11646/phytotaxa.533.3.2, http://zenodo.org/record/604843
Three new fern names of hybrid genera and four new combinations in Athyriaceae, Osmundaceae, and Thelypteridaceae
No full textWan, Xia, Zhang, Li-Bing (2022): Three new fern names of hybrid genera and four new combinations in Athyriaceae, Osmundaceae, and Thelypteridaceae. Phytotaxa 575 (1): 104-108, DOI: 10.11646/phytotaxa.575.1.8, URL: http://dx.doi.org/10.1094/PDIS-04-22-0755-PD
Validation and lectotypification of the fern combination Whittieria engelmannii (Ophioglossaceae)
No full textWan, Xia, Zhang, Liang, Zhang, Li-Bing (2022): Validation and lectotypification of the fern combination Whittieria engelmannii (Ophioglossaceae). Phytotaxa 567 (2): 205-206, DOI: 10.11646/phytotaxa.567.2.1
Polystichum neocavernicola (subg. Haplopolystichum; Dryopteridaceae), a new cave fern from Guangxi, China
No full textLiang, Yong-Yan, Zhang, Li-Bing (2022): Polystichum neocavernicola (subg. Haplopolystichum; Dryopteridaceae), a new cave fern from Guangxi, China. Phytotaxa 559 (1): 95-98, DOI: 10.11646/phytotaxa.559.1.11, URL: http://dx.doi.org/10.11646/phytotaxa.559.1.1
Solanum membranisepalum (Solanaceae): A new name for the Flora of China
No full textZhang, Li-Bing, Lu, Ngan Thi (2014): Solanum membranisepalum (Solanaceae): A new name for the Flora of China. Phytotaxa 186 (4): 239-240, DOI: 10.11646/phytotaxa.186.4.9, URL: http://dx.doi.org/10.11646/phytotaxa.186.4.
- …
