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
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
收藏
页码:72 / 80
页数:9
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