scholarly journals Primulina scutellifolia, a new species of Gesneriaceae from southern Vietnam

PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 15-21
Author(s):  
Ngoc Long Vu ◽  
Tran Quoc Trung Nguyen ◽  
Gioi Tran ◽  
Quoc Dat Nguyen ◽  
Hong Truong Luu

Primulina scutellifolia is described as a new species from Khanh Hoa Province, southern Central Vietnam. It is distinct in the genus in having scutellate leaves that make it a highly potential ornamental plant. The new species looks like P. annamensis in general shapes, sizes and colours of habit, inflorescence, flower, and leaf but is distinguishable by adaxially glabrous and abaxially strigose leaves with serrate margins, scutellate leaf blade and appressed downwards tomentose petiole, sparsely glandular hairs on apical 1/2 of the gynoecium and trapeziform one-lipped stigma with slightly emarginated apex.

PhytoKeys ◽  
2020 ◽  
Vol 162 ◽  
pp. 37-44
Author(s):  
Kun Liu ◽  
De-Chang Meng ◽  
Zhang-Jie Huang ◽  
Stephen Maciejewski ◽  
Zi-Bing Xin

Primulina jiuyishanica K. Liu, D.C. Meng & Z.B. Xin, a new species of Gesneriaceae from Hunan, China, is described and illustrated. The new species is morphologically similar to Primulina fimbrisepala (Hand.-Mazz.) Yin Z. Wang, but differs in its elliptic to broadly elliptic leaf blade with broadly cuneate base, peduncle densely pubescent with sparse glandular hairs, corolla throat with no purple spots inside, the yellow patch in the throat densely glandular-pubescent and pistil densely glandular-pubescent. Photographs and descriptions of the new species are provided below.


Phytotaxa ◽  
2019 ◽  
Vol 400 (3) ◽  
pp. 211
Author(s):  
VU TIEN CHINH ◽  
DUY NONG VAN ◽  
VAN TIEN TRAN ◽  
NIANHE XIA

A new species, Stephania polygona N.H. Xia & V.T. Chinh, is described and illustrated from southern Vietnam. It is similar to S. subpeltata and S. elegans in general appearance, but differs by its polygonous lobed leaf blade, five to eight veins, and longer, red purple sepals.


2020 ◽  
Vol 35 ◽  
pp. 123-128
Author(s):  
Anton Volynkin ◽  
Yevgeniy A. Derzhinsky

A new species of the genus Miltochrista Hübner, [1819], Miltochrista bachma Volynkin & Derzhinsky, sp. nov. is described from the Bạch Mã National Park in central Vietnam. The diagnostic comparison is made with Miltochrista testata (Černý, 2016) described from southern Vietnam and Miltochrista lyclenoides Černý, 2016 described from central Laos. Adults, male and female genitalia of the new and both similar species are illustrated.


PhytoKeys ◽  
2020 ◽  
Vol 151 ◽  
pp. 49-57
Author(s):  
Ngọc-Sâm Lý ◽  
Danh-Hùng Nguyễn ◽  
Thị-Hương Lê ◽  
Minh-Hợi Trần ◽  
Ngọc-Đài Đỗ ◽  
...  

Loxostigma puhoatense N.D. Do et al., sp. nov., a new species of Gesneriaceae, is described and illustrated from Pu Hoat Nature Reserve, Nghe An Province, Vietnam. This species is morphologically similar to L. dongxingensis and L. damingshanensis in the plant habit, indumentum system of vegetative and reproductive characters, shape of leaf blades, calyx, pistil but differs from the latter two by the abaxially reddish-purple leaf blade with pubescent along veins, lateral veins 11–19, shorter white to pale yellowish-white corolla (3.7–3.8 cm long) with purple-spotted and glabrous inside, longer abaxial stamens in 2–2.1 cm, shorter and densely glandular-puberulent ovary in 1–1.2 cm, and sparsely glandular-puberulent style. Data on distribution, ecology, phenology, and vernacular of the new species are provided.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 37-44
Author(s):  
TRUONG VAN DO ◽  
HUNG VIET NGUYEN ◽  
KHUONG DUY LE

Aristolochia vuquangensis (Aristolochia subgenus Siphisia), a new species from Central Vietnam, is described and illustrated here. This species is most similar to A. wardiana and A. forrestiana by sharing an ovate to lanceolate-ovate leaf blade and a cylindric or saccate-shaped limb, but it differs principally from the two species in having a densely brown hirsute outer surface of perianth, an oblong-ovate utricle, 1.1–1.5 cm long, an unequally semicircular 3-lobed limb in pre-anthesis, with a revolute median lobe, larger than two lateral lobes, abaxially concave, and lower one-third of the inner surface of limb densely covered by trichomes. A detailed description, illustrations, information on ecology, conservation status, and comparison with two similar species are also provided.


Phytotaxa ◽  
2018 ◽  
Vol 365 (3) ◽  
pp. 288
Author(s):  
MUHAMMAD IDREES ◽  
TRUONG VAN DO ◽  
XIN-FEN GAO

We describe a distinctive new species of Eriobotrya condaoensis (Rosaceae) from Con Dao National Park, Ba Ria-Vung Tau Province, southern Vietnam, based on both morphological and molecular evidences. The new species is characterized by leaf blade oblong-oblanceolate, 8–12 × 4–6 cm, leaf margins crenate, both surface glabrous, secondary veins 6–7 pairs, bracts apically dentate and persistent, flowers sessile and yellowish, hypanthium funnel-shaped and brown tomentose, petals elliptic and 6–7 × 4–5 mm long, styles 2, free at base and 5–6 mm long, and ovary glabrous. Morphological characters and phylogenetic analysis based on nrDNA ITS sequences confirmed the distinctiveness of this new species in the genus.


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

Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.


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

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.


Zootaxa ◽  
2014 ◽  
Vol 3760 (4) ◽  
pp. 539 ◽  
Author(s):  
NGO VAN TRI ◽  
L. LEE GRISMER ◽  
PHAM HONG THAI ◽  
P. L. Wood, Jr.

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