Page 6 - 《广西植物》2025年第12期
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2 1 4 8 广 西 植 物 45 卷
Abstract: Coniogramme Féeꎬ which belongs to Cryptogrammoideae of Pteridaceaeꎬ was divided into sect. Coniogramme
and sect. Notogramme based on whether the leaf veins were connected to form an areole. The latter mainly includes the
taxa with anastomosing veins represented by C. japonica. So farꎬ there has been little systematic research on the
phylogenetics of the genus Coniogramme. The phylogenetic relationship among species of sect. Notogramme has long been
in controversy. Moreoverꎬ the taxonomic treatment was confused due to different understandings of morphological
traits. In order to solve the confusion in the classification of Coniogramme sect. Notogrammeꎬ especially C. japonica and
its related groupsꎬ in this paperꎬ the phylogenetic relationship and taxonomy of this group based on the results of
molecular systematics and morphology were integrated. The results were as follows: (1) Coniogramme sect. Notogramme
sensu Shing was not a monophyletic group. Only the species with 2-3 rows of areoles along each side of midrib belong to
this group. (2) C. gracilis formed a well ̄supported monophyletic cladeꎬ which was sister to the clade formed by C.
japonicaꎬ C. centrochinensis and C. ankangensis. Combining with morphological evidenceꎬ this study suggested that
C. gracilis should be recognized as a distinct species. (3) There was an intermediate transitional form in terms of
morphology and no obvious morphological distinction among C. japonicaꎬ C. centrochinensis and C. ankangensisꎬ and they
clustered into a monophyletic group in the phylogenetic tree. C. centrochinensis and C. ankangensis should be treated as
synonymies of C. japonica. The traditional concept of sect. Notogramme was redefined in this paper. This section consists
of two speciesꎬ namely C. japonica and C. gracilis.
Key words: Coniogramme sect. Notogrammeꎬ C. japonica complexꎬ molecular phylogenyꎬ morphologyꎬ
species delimitation
凤了蕨属(Coniogramme Fée) 隶属广义凤尾蕨 行连续网眼的日本凤了蕨、C. gracilis、南岳凤了蕨
科( Pteridaceae) 的珠蕨亚科( Cryptogrammoideae) (C. centrochinensis)和安康凤了蕨(C. ankangensis)ꎬ
(Zhang et al.ꎬ 2005ꎻSmith et al.ꎬ 2006ꎻSchuettpelz 具有 1 行不连续网眼的疏网凤了蕨(C. fauriei)和巴
et al.ꎬ 2007ꎻ Christenhusz et al.ꎬ 2011ꎻ Zhang & 山凤了蕨(C. bashanensis)ꎬ以及偶有出现个别网眼
Rankerꎬ 2013)ꎮ 该属主要分布于亚洲热带和亚热 的井冈山凤了蕨(C. jinggangshanensis)、紫柄凤了蕨
带地区ꎬ西至喜马拉雅山脉的西部ꎬ向南可延伸至 (C. wilsonii) 和单网凤了蕨( C. simplicior)ꎮ « 中国
爪哇和非洲(« 中国植物志» 记载的美洲分布为错 植物志»及各地方植物志基本均遵循这种分类框架
误鉴定)ꎬ是林下植被的重要组成部分ꎮ 由于该属 (秦仁昌和邢公侠ꎬ1990ꎻ张朝芳和章绍尧ꎬ1993ꎻ王
在形态结构上分化差异不大ꎬ诸多种类的区分性 培善和王筱英ꎬ2001)ꎮ
状很少且有时存在中间过渡形式ꎬ因此在实际鉴 日本凤了蕨是凤了蕨属分布范围最广的物种
定中不易把握ꎬ从而导致该属的分类极其困难ꎮ 之一ꎬ也是网脉组的模式种ꎮ 其主要形态特征为
Fraser ̄Jenkins(1997)认为目前凤了蕨属的分类非 二回羽状复叶ꎬ羽片披针形ꎬ基部为不对称的楔
常混乱ꎬ已严重阻碍了各国学者的正常交流ꎮ 为 形ꎬ有 2 ~ 3 行连续的网眼ꎬ锯齿疏矮ꎬ水囊远离锯
使凤了蕨属的分类建立在可靠的基础上ꎬ仍需做 齿等ꎮ C. gracilis 则特产于日本ꎮ 该种与日本凤了
进一步的观察和研究(秦仁昌和邢公侠ꎬ1990)ꎮ 蕨类似ꎬ也具有 2 ~ 3 行不连续网眼ꎬ区别在于其羽
叶脉形态一直以来被认为是凤了蕨属最重要 片狭窄细长ꎬ水囊伸入锯齿ꎬ甚至抵达羽片边缘
的分 类 性 状 之 一 ( Hieronymusꎬ 1916 )ꎮ 邢 公 侠 (Ogataꎬ 1935)ꎮ 该种的分类地位一直存有争议ꎬ
(1981)根据叶脉是否联结形成网眼将该属划分为 曾被处理为日本凤了蕨的变种或亚种( Nakaikeꎬ
两组ꎬ 即 离 脉 组 ( sect. Coniogramme) 和 网 脉 组 1975)ꎮ «中国植物志» 则是将其作为日本凤了蕨
(sect. Notogramme)ꎮ 其中ꎬ网脉组的定义为叶脉沿 的异名处理(秦仁昌和邢公侠ꎬ1990)ꎮ 但是ꎬ也有
主脉两侧形成 1~3 行斜出的长网眼ꎬ有时仅具 1 个 部分学者承认其种级地位(Iwatsuki et al.ꎬ 1995)ꎮ
或 几 个 不 连 续 的 网 眼ꎬ 涵 盖 了 以 日 本 凤 了 蕨 Flora of China 认为该种与日本凤了蕨区别不明
(Coniogramme japonica) 为代表的凤了蕨属中叶脉 显ꎬ并将其处理为后者的异名( Zhang & Rankerꎬ
具有网结现象的所有类群ꎬ共计 9 种ꎬ包括具有 2~3 2013)ꎮ 南岳凤了蕨于 1977 年在«江苏植物志» 发

