Taxonomic studies on Parahellenia (Costaceae) in Vietnam: a new species, P. trongduyii, and a new combination, P. candida

被引：2

作者：

Chen, Juan ^{[1
,2
]}

Nguyen, Van Canh ^{[3
]}

Nguyen, Van Khuong ^{[3
]}

Nguyen, Khang Sinh ^{[4
,5
]}

Nuraliev, Maxim S. ^{[6
,7
]}

Xia, Nianhe ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Digital Bot Garden, Key Lab Plant Resources Conservat & Sustainable Ut, Guangzhou 510650, Peoples R China

[2] South China Natl Bot Garden, Guangzhou 510650, Peoples R China

[3] Thu Dau Mot Univ, Inst Appl Technol, 6 Tran van On St, Thu Dau Mot City, Binh Duong, Vietnam

[4] Vietnam Acad Sci & Technol, Inst Ecol & Biol Resources, 18 Hoang Quoc Viet St, Hanoi, Vietnam

[5] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, 18 Hoang Quoc Viet St, Hanoi, Vietnam

[6] Joint Russian Vietnamese Trop Sci & Technol Ctr, Nguyen Huyen St, Hanoi, Vietnam

[7] Moscow MV Lomonosov State Univ, Biol Fac, Dept Higher Plants, 1 12 Leninskie Gory, Moscow 119234, Russia

来源：

PHYTOTAXA | 2023年 / 583卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Cheilocostus; Hellenia; morphology; plant taxonomy;

D O I：

10.11646/phytotaxa.583.1.7

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Parahellenia trongduyii, a new species of Costaceae from Vietnam, is described and illustrated. The new species is similar to P. tonkinensis, but differs in unbranched or barely branched stems, narrowly triangular-lanceolate glabrous buds, bract apex with a soft mucro, yellow to whitish yellow labellum with longitudinal orange to red lines at center, longer anther crest and stigma with a slightly bilobed dorsal appendage. A new combination, Parahellenia candida, is proposed for the species earlier known as Cheilocostus candidus. A key to Parahellenia in Vietnam is also provided.

引用

页码：72 / 80

页数：9

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