Arachniodes libingii sp. nov. and A. vietnamensis sp. nov. (Dryopteridaceae), two new ferns from southern China and central Vietnam

被引：2
|
作者：
Lu, Ngan Thi [1 ]
Nguyen, Linh Phuong [2 ]
LE, Chi Toan [3 ]
Nguyen, Thanh Trung [2 ]
Zhang, Liang [4 ]
机构：
[1] Vietnam Acad Sci & Technol, Vietnam Natl Museum Nat, Dept Biol, 18 Hoang Quoc Viet, Hanoi, Vietnam
[2] VNU Univ Sci, Fac Biol, 334 Nguyen Trai, Hanoi, Vietnam
[3] Hanoi Pedag Univ 2, Dept Bot, 32 Nguyen Linh, Xuan Hoa, Phuc Yen, Vietnam
[4] Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
来源：
PHYTOTAXA | 2021年 / 522卷 / 03期
关键词：
The Arachniodes Clade; the Simpliciorae Subclade; the Vietnamensis group;
D O I：
10.11646/phytotaxa.522.3.9
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
We here describe two new species Arachniodes libingii and A. vietnamensis (Dryopteridaceae) from southern China and central Vietnam, respectively. Our previous phylogenetic analysis found a close relationship between the two new species. Further morphological studies showed that the two species share short creeping rhizomes, blackish brown and lanceolate scales, papery laminae, aristate pinnules, dense scales along fronds, and entire indusia. However, A. libingii has deltoid oblong laminae and apices abruptly acuminate-caudate, while A. vietnamensis has shortly ovate laminae and apices gradually acuminate.
引用
收藏
页码：256 / 262
页数：7
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