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Fig. 1. – Bambusa gurgandii K. M. Wong & M. H in Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam
No full textFig. 1. – Bambusa gurgandii K. M. Wong & M. H. Diep, general vegetative and pseudospikelet characters. A. Culm shoot; B. Culm node, showing a narrow ring of dense appressed pale hairs just above each node; C. Branch leaves with conspicuous laterally spreading, bristly sheath auricles; D. Part of flowering branch, showing pseudospikelets with extruded maroon anthers. [Photos: A: M. H. Diep; B-D: K. M. Wong]Published as part of Wong, Khoon Meng & Diep, My Hanh, 2015, Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam, pp. 211-218 in Candollea 70 (2) on page 213, DOI: 10.15553/c2015v702a6, http://zenodo.org/record/568439
Fig. 3 in Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam
No full textFig. 3. – Jacky Gurgand holding dark-haired culm sheaths of the form of Bambusa gurgandii K. M. Wong & M. H. Diep known as "l ô đen". [Photo: K. M. Wong]Published as part of Wong, Khoon Meng & Diep, My Hanh, 2015, Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam, pp. 211-218 in Candollea 70 (2) on page 216, DOI: 10.15553/c2015v702a6, http://zenodo.org/record/568439
A NEW COMBINATION AND A NEW NAME IN GYNOCHTHODES (RUBIACEAE)
Get PDFWONG, K. M. & RAZAFIMANDIMBISON, S. G. 2015. A new combination and a new name in Gynochthodes(Rubiaceae). Reinwardtia14(2): 297 ‒ 298. — The new combination Gynochthodes lanuginosa (Suratman) K. M. Wong & Razafim. and the new name Gynochthodes suratmanii K. M. Wong & Razafim., the latter in place of Morinda wongiana Suratman, are proposed
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Bambusa gurgandii K. M. Wong & M. H. Diep 2015, spec. nova
No full textBambusa gurgandii K. M. Wong & M. H. Diep, spec. nova (Fig. 1-2). Typus: VIETNAM. Prov. Binh Duong: Ben Cat, Phu An Bamboo Village, cultivated as Accession 45 (introduced from Hue Province, Thua Thien, Nam Dong, Khe Tre, 16°10’53”N 107°43’12”E, 350 m alt.), 24.XI.2014, M. H. Diep, C. K. Le, J. Gurgand et al. MH 100 (holo-: SING [SING0210902 shoot & leafy branch, SING0210903 culm sheath, SING0210904 inflorescence and leafy branch, SING0202907 pseudospikelets in spirit]! ; iso-: G!, IBSC!, K!, P!, PBB!, US!, VNM!). Bambusa gurgandii resembles B. polymorpha Munro in having conspicuously bristly-auriculate culm sheaths with erect blades, conspicuous laterally extending and long-bristly leaf-sheath auricles, glabrous lemmas, glabrous palea keels and maroon anthers. It differs from B. polymorpha in its sparsely pale brown to medium brown or black hairy culm sheaths, glabrescent and slightly white-waxy mid-culm internodes, glabrous leaf blades, and blunt anther apices. In contrast, B. polymorpha has densely white-hairy culm sheaths, conspicuously pale appressed-hairy and intensely white-waxy mid-culm internodes, hairy lower leaf surfaces, and apiculate anther apices. Clumping bamboo to c. 15 m tall. Culms plain green, to 10 cm diameter, quite stiffly erect and apically only slightly arching, with well-spaced culms about 10-30 cm apart. Culm internodes with a conspicuous covering of appressed pale hairs all over the basal few internodes, this becoming scantier and more restricted to the internode base towards mid-culm, with a consistent narrow ring of dense appressed pale hairs just above each node; and a slight white-waxy bloom all over. Culm sheaths on mature culms 22-32 cm long, mainly pale green, infused with yellowish green at the top of the sheath proper; with scattered pale brown to medium brown or black appressed hairs and a slight white-waxy bloom all over the back; basal part at the sheath insertion with a 2-3 mm narrow ring-like band of dense spreading medium to dark brown hairs 2-3 mm long; blade 5.5-24 cm long, broad to narrowly triangular, erect but loosely held (not tightly appressed) against the next sheath or internode, medium green, with a slight white-waxy bloom on the outer (abaxial) side, with fine 2-4 mm long sinuous pale brown bristles at the base of the margin, the blade base with a few corrugations as it continues with only slight constriction into laterally elongate, spreading lobe-like auricles; auricles 5-10 mm high, protruding to 1-1.5 cm laterally from the sheath margin and slightly downcurved at the end, purplish brown, with sinuous bristles on the edge 5-7 mm long; ligule a leathery low subentire rim 1-2.5 mm high with 2-5 mm long narrowly triangular teeth on the margin. Branch buds solitary at each branching node, the prophyll broadly dome-shaped with fused margins and resembling a broad hood around the bud. Branches at mid-culm with the primary axis dominant in size and length with 2-several higher-order branches from its base, less often with only the primary axis developed. Branch leaves mostly c. 10-23 cm long, to 1.5-2.6 cm broad, dark green, slightly glaucous on the lower (abaxial) surface, glabrous on both surfaces; auricles conspicuous laterally spreading narrow lobes 0.5-1 mm high and 3-5 mm long, slightly downcurved at the end, margins with fine spreading bristles 5-7 mm long; ligule inconspicuous; sheath glabrous; the abaxial side of the sheath apex developing a scale-like callus 1-2 mm long with subentire-erose margin. Inflorescences iterauctant, with the basic flower-bearing unit consisting of ellipsoid pseudospikelets bearing prophyllate buds at their base and the spikelet proper distal to these, the prophyllate buds themselves developing into new pseudospikelets. Pseudospikelets slightly flattened, when mature to 2-3.8 cm long, 7-9 mm wide; each with 1-3 bracts subtending prophyllate buds, 1 empty glume, 5-9 perfect flowers, and 1-2 terminal vestigial flowers consisting of an empty lemma or a lemma and palea only; rachilla internodes 1-1.5 mm long, glabrous and disarticulating between flowers. Flower with lemma 12-16 mm long, 18-21-veined, back glabrous and pale green, margins glabrous, apex with a short cusp c. 1 mm long; palea 12-15 mm long, 2-keeled, the back strongly sulcate, 7-veined, glabrous, the apex acuminate to very slightly cleft, the keel thickened, glabrous, the wings 4-veined, glabrous except for the minutely ciliate apical part including the margins; lodicules 3, rounded, c. 1 mm diameter developing to 2-3 mm diameter in the mature flower, thin-hyaline and delicate, bearing 1 mm long cilia on the margins; stamens 6, filaments free, 4-5 mm long developing to 10-18 mm long when mature, white turning brown, anthers 8-9 mm long when extruded, the apical part of the connective blunt and bearing a tuft of 3-5 spreading minute spines, the thecae maroon turning brown; ovary c. 1 mm long, ovoid, with a thickened apex bearing long hairs 0.5-1 mm long, style 0.5-1.5 mm long bearing 3 linear stigmas c. 3 mm long with short hairs all over. Fruit a caryopsis, obovoid, 8-12 mm long, 4-4.5 mm across, somewhat 3-angled with the dorsal (back) portion strongly sulcate and smooth, the apex conspicuously thickened and hairy, the ventral surfaces smooth to minutely tuberculate. Etymology. ‒ This new species is named for Jacques Gurgand (Fig. 3), a firm associate of the Phu An Bamboo Village with an extraordinary interest in the bamboos of Vietnam, who celebrated his 80th birthday in February 2015, and worked with the authors to elucidate the characters of this new bamboo species. Conservation status. ‒ Bambusa gurgandii is known only from plants in cultivation, the extent of which has not been ascertained at the type locality in the Hue Province from where it was introduced. Its presence in other parts of Vietnam has also not been ascertained. It has so far not been documented in the better-known bamboo floras of South China and India, so even if it were indigenous to Vietnam, the new species is therefore assigned a preliminary status of “Data Deficient” [DD] following IUCN Red List Categories and Criteria (IUCN, 2012). Notes. ‒ In having conspicuous laterally spreading culmsheath auricles with long bristles, erect triangular culmsheath blades, as well as few-many-flowered, slightly flattened pseudospikelets often longer than 1 cm with elongate rachilla internodes, Bambusa gurgandii resembles the group of species including B. burmanica Gamble, B. farinacea K. M. Wong, B. nutans Wall. ex Munro, B. polymorpha, B. teres Buch. -Ham. ex Munro, and B. tulda Roxb. It is easily distinguished from B. polymorpha as explained in the diagnosis above. Furthermore, it differs from B. burmanica and B. teres in its blunt (not apiculate) anther apices and glabrous (not hairy) rachilla internodes; from B. farinacea in its maroon anthers with blunt apices bearing a cluster of minute spines (not yellow anthers with emarginate glabrous apices) and glabrous (not hairy) palea keels; from B. nutans in its glabrous (not hairy) lemma margins, blunt (not apiculate) anther apices and glabrous (not hairy) rachilla internodes; and from B. tulda in its glabrous (not fine-hairy) lemma margins, glabrous (not fine-hairy) palea keels, blunt anther apices with a cluster of minute spines (not emarginate anther apices without spines), and glabrous (not short-hairy) rachilla internodes.Published as part of Wong, Khoon Meng & Diep, My Hanh, 2015, Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam, pp. 211-218 in Candollea 70 (2) on pages 215-216, DOI: 10.15553/c2015v702a6, http://zenodo.org/record/568439
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