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

doi:10.1600/036364419X15710776741503

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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

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Systematic Botany, 44(4):768-774 (2019). https://doi.org/10.1600/036364419X15710776741503

Abstract

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.

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Cheng-Wei Chen, Li-Yaung Kuo, Yu-Hsuan Huang, Tian-Chuan Hsu, Minh Tri Dang, Hong Truong Luu, Chia-Wei Li, and Yao-Moan Huang "A New Species and a New Record of Stegnogramma (Thelypteridaceae; Polypodiales) from Southern Vietnam," Systematic Botany 44(4), 768-774, (14 November 2019). https://doi.org/10.1600/036364419X15710776741503

Published: 14 November 2019

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