Description of the a species Peliosanthes curviandra (Asparagaceae) from Vietnam with focus on androecium structure and leaf micromorphology

Phytotaxa ◽  
2020 ◽  
Vol 464 (1) ◽  
pp. 69-76
Author(s):  
NIKOLAY A. VISLOBOKOV ◽  
MIKHAIL S. ROMANOV ◽  
EVGENIYA A. KUZMICHEVA ◽  
SVETLANA P. KUZNETSOVA ◽  
ANDREY N. KUZNETSOV
Keyword(s):  
New Species ◽  
Inferior Ovary ◽  
Southern Vietnam ◽  
Leaf Micromorphology ◽  
A New Species

Peliosanthes curviandra is described and illustrated as a new species from southern Vietnam. The new species is characterized by the unusual androecium comprising three erect and curved stamens, perfectly inferior ovary, and a slender tortuous style. The results of observations on the androecium structure and micromorphology of leaf blades were also presented, and the data obtained were briefly discussed in comparison with those known for some other congeners.

Hoya lamthanhiae (Asclepidoideae, Apocynaceae), a new species from southern Vietnam

2019 ◽  
Vol 52 (1) ◽  
Author(s):  
Van The Pham ◽  
Robert D. Kloppenburg ◽  
Leonid V. Averyanov ◽  
Giang Son Nguyen ◽  
Hoang Tuan Nguyen ◽  
...  
Keyword(s):  
New Species ◽  
Southern Vietnam ◽  
A New Species

The Leptobrachium (Anura: Megophryidae) of the Langbian Plateau, southern Vietnam, with description of a new species

Zootaxa ◽  
2011 ◽  
Vol 2804 (1) ◽  
pp. 25 ◽  
Author(s):  
BRYAN L. STUART ◽  
JODI J. L. ROWLEY ◽  
DAO THI ANH TRAN ◽  
DUONG THI THUY LE ◽  
HUY DUC HOANG
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Small Body ◽  
Original Description ◽  
The Other ◽  
Sexually Active ◽  
Small Body Size ◽  
Upper Lip ◽  
Southern Vietnam ◽  
A New Species

We sampled two forms of Leptobrachium in syntopy at the type locality of L. pullum at upper elevations on the Langbian Plateau, southern Vietnam. The two forms differed in morphology (primarily in coloration), mitochondrial DNA, and male advertisement calls. One form closely agrees with the type series of L. pullum (but not to its original description due to error), and the other is described as new. Leptobrachium leucops sp. nov. is distinguished from its congeners by having small body size (males with SVL 38.8–45.2), the upper one-third to one-half of iris white, a blue scleral arc, a dark venter, and sexually active males without spines on the upper lip. Leptobrachium pullum and L. mouhoti, a recently described species from low-elevation slopes of the Langbian Plateau in eastern Cambodia, are morphologically divergent but genetically similar, warranting further investigation into geographic variation in the red-eyed Leptobrachium of southern Indochina.

A new species of Cyrtodactylus (Squamata: Gekkonidae) from Ninh Thuan Province, southern Vietnam

Zootaxa ◽  
2021 ◽  
Vol 4999 (1) ◽  
pp. 58-76
Author(s):  
Quyen Hanh Do ◽  
TRUNG MY PHUNG ◽  
HANH THI NGO ◽  
MINH DUC LE ◽  
THOMAS ZIEGLER ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Coi Gene ◽  
Unique Combination ◽  
Mitochondrial Coi ◽  
Southern Vietnam ◽  
Mitochondrial Coi Gene ◽  
Morphological Differences ◽  
Dorsal Pattern ◽  
A New Species

A new species of the Cyrtodactylus irregularis group is described from Ninh Thuan Province, southern Vietnam based on molecular divergence and morphological differences. Cyrtodactylus orlovi sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by having the unique combination of the following characters: size medium (SVL 61.0–77.7 mm); dorsal tubercles in 16–20 irregular rows; 36–39 ventral scale rows; precloacal pores absent in females, 5 or 6 in males, in a continuous row; femoral pores absent; 3–8 enlarged femoral scales; postcloacal spurs 1 or 2; lamellae under toe IV 16–19; a continuous neckband; a highly irregular transverse banded dorsal pattern; the absence of transversely enlarged median subcaudal scales. In phylogenetic analyses, the new species was revealed to be the sister taxon to a clade consisting of Cyrtodactylus cattienensis and the most recently described species from Vietnam, C. chungi, with 12.1–12.4% and 11.7 % pairwise genetic divergence from the two species, respectively, based on a fragment of the mitochondrial COI gene.  

Ardisia patentiradiosa (Primulaceae), a new species from southern Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 522 (1) ◽  
pp. 63-67
Author(s):  
MAXIM S. NURALIEV ◽  
ANDREY N. KUZNETSOV ◽  
SVETLANA P. KUZNETSOVA ◽  
CHI-MING HU
Keyword(s):  
New Species ◽  
Montane Forest ◽  
Southern Vietnam ◽  
A New Species

Ardisia patentiradiosa C.M. Hu & Nuraliev (Primulaceae) collected from montane forest of Gia Lai Province, Vietnam, is described and illustrated. Its distinguishing characters from its closest relatives, Ardisia gracilenta C.M. Hu & J.E. Vidal and A. pitardii C.M. Hu & J.E. Vidal, are discussed.

A new species and new record of Bulbophyllum (Orchidaceae) from Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 522 (1) ◽  
pp. 68-72
Author(s):  
PHUOC DIEN PHAM ◽  
LEONID V. AVERYANOV ◽  
VAN SON DANG ◽  
DINH HIEP NGUYEN ◽  
TATIANA MAISAK ◽  
...  
Keyword(s):  
New Species ◽  
New Record ◽  
Southern Vietnam ◽  
North Vietnam ◽  
First Time ◽  
A New Species

The new species, Bulbophyllum manhdatii (B. sect. Brachyantha) discovered in Da Lat Plateau, Lam Dong Province (southern Vietnam) is described here. This new species is close to B. pumilio but clearly differs in densely crowded pseudobulbs and their shape, shorter inflorescence, lateral sepals forming a narrow acute tube slightly flattened at the base, lip without median keel, and longer stelidia. In addition, a new national record, B. seidenfadenii, from the same section is also reported from the first time from North Vietnam.

Taxonomic status of two populations of Bent-toed Geckos of the Cyrtodactylus irregularis complex (Squamata: Gekkonidae) with description of a new species from Nui Chua National Park, southern Vietnam

Zootaxa ◽  
2018 ◽  
Vol 4403 (2) ◽  
pp. 307 ◽  
Author(s):  
OLIVIER S. G. PAUWELS ◽  
ROMAN A. NAZAROV ◽  
VLADIMIR V. BOBROV ◽  
NIKOLAY A. POYARKOV
Keyword(s):  
New Species ◽  
National Park ◽  
Species Complex ◽  
Nature Reserve ◽  
Taxonomic Status ◽  
Southern Vietnam ◽  
Number Of Species ◽  
Two Populations ◽  
A New Species

Based on genetic, morphological and chromatical comparisons we evaluate the taxonomic status of two southern Vietnamese forest-dwelling populations of the Cyrtodactylus irregularis species complex. We confirm the allocation of the population from Binh Chau—Phuoc Buu Nature Reserve (Ba Ria—Vung Tau Province) to C. cattienensis and we describe the population of Nui Chua National Park (Ninh Thuan Province) as Cyrtodactylus sangi sp. nov. This brings to 18 the number of species within the C. irregularis complex and to 41 the number of described Cyrtodactylus species recorded from Vietnam. 

Zetorchestes krisperi sp. nov. (Acari: Oribatida: Zetorchestidae) from Vietnam, with juvenile morphology and identification key to known species of the genus

Zootaxa ◽  
2021 ◽  
Vol 5057 (4) ◽  
pp. 545-561
Author(s):  
VASILIY B. KOLESNIKOV ◽  
VLADISLAV D. LEONOV
Keyword(s):  
New Species ◽  
National Park ◽  
Oribatid Mites ◽  
Identification Key ◽  
Diagnostic Features ◽  
Southern Vietnam ◽  
The Family ◽  
The World ◽  
A New Species

The description of a new species of oribatid mites (Oribatida) of the family Zetorchestidae—Zetorchestes krisperi sp. nov.—is proposed based on adult and tritonymph specimens collected from rainforest soil of Bi Dup-Nui Ba National Park (southern Vietnam). We also review the distinguishing characteristics for Zetorchestes species and present an identification key to Zetorchestes species of the world. Diagnostic features of Zetorchestes nymphs are discussed.  

Tonlesapia amnica, a new species of dragonet (Teleostei: Callionymidae) from the Mekong delta HEOK HEE NG (Singapore) & WALTER J. RAINBOTH (USA)

Zootaxa ◽  
2011 ◽  
Vol 3052 (1) ◽  
pp. 62 ◽  
Author(s):  
HEOK HEE NG ◽  
WALTER J. RAINBOTH
Keyword(s):  
New Species ◽  
Mekong Delta ◽  
Mekong River ◽  
Ventral Margin ◽  
Caudal Peduncle ◽  
Southern Vietnam ◽  
Dorsal Fin ◽  
Infraorbital Canal ◽  
Fin Rays ◽  
A New Species

Tonlesapia amnica, a new species of dragonet lacking a first dorsal fin, is described from the Mekong River delta in southern Vietnam. It can be distinguished from its sole congener, T. tsukawakii, in having the infraorbital canal extending beyond (vs. not reaching) ventral margin of orbit, a more slender body (7.2–13.5% SL vs. 14.3–15.0) and caudal peduncle (4.4–5.2% SL vs. 5.1–6.3), a smaller eye (6.5–8.3% SL vs. 8.7–9.2) and more dorsal-fin rays (9–10 vs. 8).

Capparis bachii (Capparaceae), a New Species from Southern Vietnam

2018 ◽  
Vol 55 (1-3) ◽  
pp. 31-35 ◽  
Author(s):  
Sy Danh Thuong ◽  
Ritesh Kumar Choudhary ◽  
Gordon C. Tucker ◽  
Chu Hoang Mau ◽  
Thi Thu Nga Nguyen ◽  
...  
Keyword(s):  
New Species ◽  
Southern Vietnam ◽  
A New Species

Loropetalum flavum (Hamamelidaceae), a new species from northern Vietnam

Phytotaxa ◽  
2018 ◽  
Vol 385 (2) ◽  
pp. 94 ◽  
Author(s):  
LEONID V. AVERYANOV ◽  
PETER K. ENDRESS ◽  
KHANG SINH NGUYEN ◽  
TRAN HUY THAI ◽  
TATIANA V. MAISAK ◽  
...  
Keyword(s):  
New Species ◽  
Primary Forest ◽  
Typical Element ◽  
Inferior Ovary ◽  
Northern Vietnam ◽  
The Rich ◽  
Karstic Limestone ◽  
A New Species

Loropetalum flavum (Hamamelidaceae) is described and illustrated as a new species from Bat Dai Son Mountains situated in the northern Vietnam. Recently discovered plant was observed as a typical element of the rich primary forest found on the highly eroded karstic limestone mountain formations allied to the border with China. The new species is characterized by arboreous habit; stellately indumentum of branchlets, leaves and flowers; axillary, capitate, 4–12-flowered inflorescences; yellow, sessile, actinomorphic, bisexual, 4–6-merous flowers with 2-whorled perianth and 2–8 fleshy disc lobes; stamens with conspicuous subulate connective protrusion; anthers with 2 rectangular 2-sporangiate thecae, each dehiscing by 2 valves and syncarpous gynoecium with 2-locular inferior ovary bearing 2 very short separate styles. A key to all known species of Loropetalum species is given and lectotype of L. lanceum is proposed.

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