A taxonomic revision on Isotrema (Aristolochiaceae) in Taiwan, including one new species

Chang-Tse LU ； Chun-Lan YANG ； Yu-long HUNG ； Po-Hao CHEN ； Jenn-Che WANG

《TAIWANIA》 67卷3期 (2022/09) Pp. 391-407+s1-2

https://doi.org/10.6165/tai.2022.67.391

摘要

The genus Isotrema (Aristolochiaceae) in East Asia had been intensely revised in the recent decade. However, the classification of Taiwanese Isotrema has not been reviewed since 1996. In current study, we examine the habit, leaf shape, and flower morphology and conducted morphometrical analyses in order to revise the classification of Taiwanese Isotrema. As a result, we recognized five species in Taiwan, including one new species, I. pahsienshanianum. Additionally, I. hohuanense, an overlooked species, which was omitted from the Flora of Taiwan is recovered.

關鍵字

Aristolochiaceae ； Isotrema hohuanense ； I. pahsienshanianum ； Taiwan ； taxonomy

參考文獻

Cai, L., D.-M. He, Y.-S. Huang and Z.-L. Dao. 2020. Aristolochia wenshanensis, a new species of Aristolochiaceae from karst region in southeastern Yunnan, China. Taiwania 65(1): 41–46.

Do, T.V. and T.D. Nghiem. 2017. Taxonomic notes on some Aristolochia species in Vietnam. Taiwania 62(2): 216–218.

Gong, Q.B., S. Landrein, H.C. Xi, X.D. Ma, Z.H. Yang, K.W. He and J.Y. Shen. 2018. Aristolochia tongbiguanensis, a new species of Aristolochiaceae from Yunnan, China. Taiwania 63(3): 183–187.

Arista, M., M. Talavera, R. Berjano and P. L. Ortiz. 2013. Abiotic factors may explain the geographical distribution of flower colour morphs and the maintenance of colour polymorphism in the scarlet pimpernel. J. Ecol. 101(6): 1613–1622.

Bachman, S., J. Moat, A.W. Hill, J. de Torre and B. Scott. 2011. Supporting red list threat assessments with GeoCAT: geospatial conservation assessment tool. ZooKeys 150: 117–126.