Rohdea dangii (Asparagaceae), a new species from northwestern Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 482 (1) ◽  
pp. 65-72
Author(s):  
KHANG SINH NGUYEN ◽  
NORIYUKI TANAKA ◽  
LEONID V. AVERYANOV ◽  
PHUONG HANH NGUYEN ◽  
DUC BINH TRAN
Keyword(s):  
New Species ◽  
Northern Vietnam ◽  
Taxonomic Relationships ◽  
Aerial Stem ◽  
A New Species

Rohdea dangii, a new species from limestone areas of Son La and Dien Bien Provinces in northwestern Vietnam, is described and illustrated. It is apparently most closely related to R. tonkinensis described from northern Vietnam, for these two species share an elongate aerial stem with no cataphylls (except for those at the base of the peduncle), narrowly elliptic leaf blades and filaments conspicuously incrassate in the lower decurrent portions. It is, however, readily distinguishable mainly by the longer, thicker rhizome, non-sheathing amplexicaule leaf blades, half-terete peduncle, much shorter bracts mostly not exceeding the flowers, and crateriform perigone tube. The taxonomic relationships of the new species to R. wattii and two other species with an aerial stem were also briefly discussed.

Peliosanthes longiracemosa (Asparagaceae), a new species from limestone areas of northern Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 514 (2) ◽  
pp. 173-179
Author(s):  
KHANG SINH NGUYEN ◽  
NORIYUKI TANAKA ◽  
LEONID V. AVERYANOV ◽  
THANH SON NGUYEN ◽  
VAN THE PHAM
Keyword(s):  
New Species ◽  
Northern Vietnam ◽  
Taxonomic Relationships ◽  
A New Species

Peliosanthes longiracemosa, a new species from limestone areas of northern Vietnam, is described and illustrated. It is most similar to P. macrostegia in having a distally incurved staminal corona and a distinct pyramidal style, but clearly distinguishable chiefly by the broader leaf blades with more longitudinal veins and closer transverse veinlets, relatively longer, more slender raceme, more numerous widely expanded flowers with recurved perianth segments, and more incrassate, depressed globose staminal corona. Information on the habitat and phenology as well as notes on the taxonomic relationships with other congeners is also provided.

A synopsis of Agnetina (Plecoptera: Perlidae) from Vietnam

Zootaxa ◽  
2012 ◽  
Vol 3526 (1) ◽  
pp. 84
Author(s):  
WEIHAI LI ◽  
GUOQUAN WANG
Keyword(s):  
New Species ◽  
Related Species ◽  
Science And Technology ◽  
Northern Vietnam ◽  
Taxonomic Relationships ◽  
A New Species

A new species of the genus Agnetina are described from northern Vietnam, A. vietnamica sp. n. Its taxonomic relationships with the related species are discussed. The holotype is deposited in the Henan Institute of Science and Technology, China.

A New Species of Rhacophorus Genus (Amphibia: Anura: Rhacophoridae: Rhacophorinae) from Van Ban District, Lao Cai Province, Northern Vietnam

2019 ◽  
Vol 26 (6) ◽  
pp. 325-334
Author(s):  
Ivan I. Kropachev ◽  
Nikolai L. Orlov ◽  
Hoa Thi Ninh ◽  
Tao Thien Nguyen
Keyword(s):  
New Species ◽  
Distal Part ◽  
Slender Body ◽  
Northern Vietnam ◽  
Lao Cai ◽  
Lower Ratio ◽  
A New Species ◽  
Green Triangle ◽  
Brown Color

We describe a new species of the Rhacophorus genus, which differs from all species known in Asia by the combination of characters. It strongly differs also from small and middle-sized species of Rhacophorus sensu lato: Rhacophorus calcaneus Smith, 1924, Leptomantis cyanopunctatus (Manthey et Steiof, 1998), Rhacophorus hoabinhensis Nguyen, Pham, Nguyen, Ninh et Ziegler, 2017, Rhacophorus hoanglienensis Orlov, Lathrop, Murphy et Ho, 2001, Zhangixalus jarujini (Matsui et Panha, 2006), Rhacophorus laoshan Mo, Jiang, Xie et Ohler, 2008, Rhacophorus pardalis Günther, 1858, Rhacophorus rhodopus Liu et Hu, 1960, Rhacophorus robertingeri Orlov, Poyarkov, Vassilieva, Ananjeva, Nguyen, Sang, and Geissler, 2012, Leptomantis robinsonii (Boulenger, 1903), Rhacophorus spelaeus Orlov, Gnophanxay, Phimminith, and Phomphoumy, 2010, Rhacophorus translineatus Wu, 1977, Rhacophorus turpes Smith, 1940, Rhacophorus vampyrus Rowley, Le, Thi, Stuart et Hoang, 2010, Rhacophorus viridimaculatus Ostroshabov, Orlov et Nguyen, 2013 by having brown color with two green dorsolateral stripes starting at the groin level and connecting through the distal part of eyelid with green triangle on the head, slender body and head, lower ratio HW/HL 0.86, lower HW/SVL 0.28 and lower ratio HL/SVL 0.32.

Begonia ufoides (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in central Guangxi, China

Phytotaxa ◽  
2017 ◽  
Vol 316 (3) ◽  
pp. 279 ◽  
Author(s):  
YONG-HUA QIN ◽  
YONG-YAN LIANG ◽  
WEI-BIN XU ◽  
CHE-WEI LIN ◽  
CHING-I PENG
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Careful Study ◽  
Herbarium Material ◽  
Line Drawings ◽  
Northern Vietnam ◽  
In The Wild ◽  
Salient Features ◽  
Limestone Hill ◽  
A New Species

A peltate-leaved species of Begonia was recently collected from a limestone hill in central Guangxi, China. Based on a careful study of literature, herbarium material, and plants both in the wild and in cultivation reveals that it is a new species of Begonia sect. Coelocentrum, which we hereby describe as B. ufoides. In addition to a full taxonomic account, color plates and line drawings are provided to aid in identification. Begonia ufoides may be confused with B. umbraculifolia Y. Wan & B.N. Chang in southwestern Guangxi and B. phuthoensis H.Q. Nguyen in northern Vietnam, both of which are peltate-leaved calciphilous species in sect. Coelocentrum, but the new species  is clearly distinguishable in many morphological characters. A table comparing salient features of the three species is presented.

Aspidistra cadamensis (Asparagaceae), a new species from Central Vietnam

Phytotaxa ◽  
2017 ◽  
Vol 303 (1) ◽  
pp. 84
Author(s):  
NGỌC-SÂM LÝ ◽  
HANS-JUERGEN TILLICH
Keyword(s):  
New Species ◽  
New Taxa ◽  
Southern China ◽  
Critical Examination ◽  
Northern Vietnam ◽  
Se Asia ◽  
South Vietnam ◽  
Central Vietnam ◽  
North Vietnam ◽  
A New Species

The genus Aspidistra Ker Gawler (1822: 628) is represented in tropical and subtropical SE Asia by more than 160 species. It has the highest diversity in southern China and northern Vietnam (Tillich 2005, 2014, Tillich & Averyanov 2012, Vislobokov et al. 2013). In Vietnam, more than 50 species are known: many species have been discovered from the limestone regions in North Vietnam, while about 21 species are found from sandstone forests in Central and South Vietnam (Gagnepain 1934, Bogner & Arnautov 2004, Bräuchler & Ngoc 2005, Averyanov & Tillich 2012, 2013, 2016a, 2016b, Averyanov et al. 2016, Tillich 2005, 2014, Tillich & Averyanov 2008, Tillich et al. 2007, Leong-Škorničková et al. 2014, Vislobokov 2015, Vislobokov et al. 2013, 2014b, 2014c, 2016a, 2016b, Lý & Tillich 2016). During extensive floristic surveys in Central Vietnam in 2016, several interesting specimens of Aspidistra were collected by the first author. The critical examination of these specimens and study of literature for Aspidistra in Vietnam and neighbouring countries allowed to evidence several new taxa, two of which have been recently described: A. averyanovii Lý & Tillich (2016: 54) and A. parviflora Lý & Tillich (2016: 56). In the present paper, we describe a further new species from Cà Đam mountains, Quảng Ngãi Province, namely Aspidistra cadamensis.

Quercus ngochoaensis (Fagaceae), a new species from Ba Vi National Park, northern, Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 516 (3) ◽  
Author(s):  
HOANG THI BINH ◽  
NGUYEN VAN NGOC ◽  
HOANG THANH SON ◽  
SHUICHIRO TAGANE ◽  
TETSUKAZU YAHARA
Keyword(s):  
New Species ◽  
National Park ◽  
Nuclear Region ◽  
Dna Barcodes ◽  
Leaf Base ◽  
Northern Vietnam ◽  
Entire Margin ◽  
A New Species

A new species of Quercus (Fagaceae), Q. ngochoaensis, from Ba Vi National Park, Ha Noi, northern Vietnam is described and illustrated. This species is morphologically similar to Q. glauca in having glabrous twigs, cuneate leaf base, two or three fruits per infructescence, almost entire margin of lamellate rings on cupule except the lowest three rings, slightly convex scar at the base of a nut. However, it differs from Q. glauca in having smaller leaves, cup-shaped cupule enclosing 1/2–2/3 of the nut, 7–8 lamellate rings on cupule, and subglobose nut. In addition to the description, DNA barcodes of the two partial plastid regions of matK, rbcL and the nuclear region of ITS of the new species are provided.

Iris pseudomeda (Iridaceae), a new species of Iris section Oncocyclus from Iran

Phytotaxa ◽  
2021 ◽  
Vol 527 (1) ◽  
pp. 75-82
Author(s):  
MONA SALIMBAHRAMI ◽  
HOJJATOLLAH SAEIDI ◽  
ALI BAGHERI
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Distribution Range ◽  
Morphological Description ◽  
Mountain Range ◽  
Zagros Mountain ◽  
Taxonomic Relationships ◽  
Northwestern Iran ◽  
Botanical Illustrations ◽  
A New Species

Iris pseudomeda is described and illustrated as a new species of Iris section Oncocyclus from Kurdistan province in northwestern Iran. It occurs among subalpine flora of Zagros mountain range, on stony calcareous hillsides and the brink of grassland fields. A complete morphological description, conservation status, botanical illustrations, notes on habitat and distribution range are presented for the new species. Furthermore, taxonomic relationships of I. pseudomeda with other members of this rhizomatous bearded section, particularly I. meda, are also discussed.

New taxa of Impatiens (Balsaminaceae) from Madagascar VI. Impatiens otto-eleonorae, a new species from Masoala Peninsula, and notes on the taxonomic relationships of Impatiens firmula and I. hildebrandtii

Phytotaxa ◽  
2015 ◽  
Vol 217 (2) ◽  
pp. 155 ◽  
Author(s):  
Eberhard Fischer ◽  
Marie-Elisette Rahelivololona
Keyword(s):  
New Species ◽  
New Taxa ◽  
Taxonomic Relationships ◽  
Masoala Peninsula ◽  
A New Species

The new species Impatiens otto-eleonorae Eb.Fischer & Rahelivolona from Masoala Peninsula is described. It is related to Impatiens hildebrandtii Baill. from Eastern Central Madagascar, but differs in the larger habit and flowers. The types of Impatiens firmula Baker and I. hildebrandtii are reinvestigated. Both taxa, previously considered to be identical, represent different species, and Impatiens hildebrandtii is reinstated here.

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