Zuo Zheng-Yu, Zhao Ting, Du Xin-Yu, Xiong Yun, Lu Jin-Mei, Li De-Zhu
Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China.
Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan, 650201, China.
Plant Divers. 2021 Sep 23;44(2):181-190. doi: 10.1016/j.pld.2021.09.005. eCollection 2022 Mar.
sect. is a small section of ferns with about 12 species mainly distributed in East Asia. Here, we carried out morphological and phylogenetic analyses of this section. A new species from southwest China, , is described and illustrated. resembles and , but differs by having a creeping rhizome and large 4-pinnate fronds. We also show that Ching & Z.Y. Liu is a distinct species; however, because it is a later homonym of Copel., it should be renamed . We conclude that a species previously known as also an illegitimate homonym, should be recognized with a new name, . We resolve the phylogenetic position of as sister to other sampled species of sect. . Our phylogenetic analyses confirm the distinctiveness of , , and . A key to species of sect. in China is provided.
某组是蕨类植物的一个小类群，约有12个物种，主要分布在东亚。在此，我们对该组进行了形态学和系统发育分析。描述并图示了一种来自中国西南部的新物种。该新物种类似于某某和某某，但具有匍匐根茎和大型四回羽状叶，以此与之相区别。我们还表明，某某（秦仁昌和刘仲宇命名）是一个独特的物种；然而，由于它是某某（科普兰命名）的晚出同名异物，应重新命名为某某。我们得出结论，一个先前被称为某某的物种也是一个非法同名异物，应以新名称某某来识别。我们确定某某的系统发育位置为某组其他采样物种的姐妹种。我们的系统发育分析证实了某某、某某和某某的独特性。提供了中国某组物种的检索表。
