We describe a new species of Stegnogramma (Thelypteridaceae; Polypodiales) as Stegnogramma australis. Morphologically, it is most similar to S. griffithii, sharing the character of pinnate fronds with ternate terminal pinnae. However, S. australis can be distinguished from S. griffithii by having more free pinna pairs, shorter distal stipe hairs, and fewer included veinlets in the laminar areoles. A description, photographs of key characters, and the known distribution of the new species are presented. We also infer genome size and reproductive mode of the new species using flow cytometry. In addition, the occurrence of S. aspidioides in Vietnam is confirmed and a key to all known species of Stegnogramma in Vietnam is given.
How to translate text using browser tools
14 November 2019
A New Species and a New Record of Stegnogramma (Thelypteridaceae; Polypodiales) from Southern Vietnam
Cheng-Wei Chen,
Li-Yaung Kuo,
Yu-Hsuan Huang,
Tian-Chuan Hsu,
Minh Tri Dang,
Hong Truong Luu,
Chia-Wei Li,
Yao-Moan Huang
ACCESS THE FULL ARTICLE
Systematic Botany
Vol. 44 • No. 4
August 2019
Vol. 44 • No. 4
August 2019
Dictyocline
Indochina
morphology
taxonomy
