蹄盖蕨属(学名:Athyrium),是蹄盖蕨科下的一个属,属名Athyrium源于希腊语“a”(无)和“thyreo”(盾状门限石)的合成词,指孢子囊盖盾状。蹄盖蕨属的所有物种为蕨类植物中较大、分类最困难的属之一,是蹄盖蕨科的主干,分布于世界各地,主产于温带和亚热带高山林下;估计全世界约有160多种,中国现知有117种和一些变种和杂种,以西南高山地区为分布中心,各省区均有。
形态特征
陆生,中型草本植物。根状茎短,多为直立,少有横走或斜升,罕细长而横走;叶簇生,罕近生或远生。
叶柄长,基部往往加粗,背面隆起腹面凹陷,两侧边缘有瘤状气囊体各一行,向下变为尖削,少为圆柱形,有时无气囊体,向下不尖削;横切面有2条维管束,呈八字形排列,向叶轴连合呈U字形;叶柄基部被鳞片,鳞片红褐色、深褐色或黑褐色,卵状披针形、长钻形或线状披针形,全缘,由厚壁的狭长细胞构成,膜质,基部着生;叶柄上面有1条纵沟,向上直通叶轴,沟内往往被短腺毛;叶片卵形、长圆形或阔披针形,一回至三回羽状,各回羽片基部合生或分离,通常以锐角沿各回羽轴下面圆形,上面有1条深纵沟,两侧边缘呈刀口状的隆起,但与其上一回羽轴(或主脉)汇合处有1断裂缺口,彼此互通,其下无或有1个肉质的刺状凸起。叶脉分离,叉状或羽状,小脉伸达锯齿顶端。叶干后常为草质,少为纸质或革质,两面通常光滑,罕被鳞片或毛,唯叶轴、羽轴和小羽轴(或主脉)上往往被有短腺毛。
孢子囊群圆形、圆肾形、马蹄形、弯勾形、长圆形或短线形,背生、侧生或横跨小脉上;囊群盖圆肾形、马蹄形、弯勾形、新月形、长圆形或短线形,褐色,膜质,边缘啮蚀状或有睫毛,少为全缘,通常宿存,罕无囊群盖或囊群盖不发育。孢子两面型,极面观为椭圆形,赤道面观为豆形,周壁表面具褶皱或无褶皱。染色体基数x=40。
下级组
蹄盖蕨组Sect. Athyrium S. K. Wu et R. C. Ching疏叶蹄盖蕨组Sect. Dissitifolia (X. C. Zhang) Z. R. Wang海南蹄盖蕨组Sect. Hainanensia Z. R. Wang川滇蹄盖蕨组Sect. Mackinnoniana (Ching et Y. T. Hsieh) Z. R. Wang小蹄盖蕨组Sect. Minima Z. R. Wang多羽蹄盖蕨组Sect. Multipinna Z. R. Wang日本蹄盖蕨组Sect. Niponica Ching et Y. T. Hsieh刺蹄盖蕨组Sect. Otophora Z. R. Wang裸囊蹄盖蕨组Sect. Pachyphylla Z. R. Wang篦齿蹄盖蕨组Sect. Pectinata (Ching et Hsieh) Z. R. Wang耳状蹄盖蕨组Sect. Polystichoides Ching et Y. T. Hsieh狭基蹄盖蕨组Sect. Stenopoda Z. R. Wang毛叶蹄盖蕨组Sect. Suprapubescentia Z. R. Wang黑秆蹄盖蕨组Sect. Wallichiana (X. C. Zhang) Z. R. Wan
下属物种
阿里山蹄盖蕨(Athyrium arisanense)百山祖蹄盖蕨(Athyrium baishanzuense)宝兴蹄盖蕨(Athyrium baoxingense)篦齿蹄盖蕨(Athyrium pectinatum)波密蹄盖蕨(Athyrium bomicola)薄叶蹄盖蕨(Athyrium delicatulum)仓田蹄盖蕨(Athyrium kuratae)苍山蹄盖蕨(Athyrium biserrulatum)藏东南蹄盖蕨(Athyrium austro-orientale)察陇蹄盖蕨(Athyrium tarulakaense)察隅蹄盖蕨(Athyrium zayuense)长柄蹄盖蕨(Athyrium longius)长江蹄盖蕨(Athyrium iseanum)长尾蹄盖蕨(Athyrium caudiforme)长叶蹄盖蕨(Athyrium elongatum)齿尖蹄盖蕨(Athyrium dentilobum)翅轴蹄盖蕨(Athyrium delavayi)川滇蹄盖蕨(Athyrium mackinnonii)川西蹄盖蕨(Athyrium costulalisorum)粗柄蹄盖蕨(Athyrium crassipes)粗脉蹄盖蕨(Athyrium venulosum)大盖蹄盖蕨(Athyrium foliolosum)大相岭蹄盖蕨(Athyrium daxianglingense)滇西蹄盖蕨(Athyrium nudifrons)东北蹄盖蕨(Athyrium brevifrons)独龙江蹄盖蕨(Athyrium dulongicolum)短柄蹄盖蕨(Athyrium brevistipes)短羽蹄盖蕨(Athyrium contingens)对生蹄盖蕨(Athyrium oppositipinnum)钝顶蹄盖蕨(Athyrium obtusilimbum)多变蹄盖蕨(Athyrium drepanopterum)多羽蹄盖蕨(Athyrium multipinnum)峨眉蹄盖蕨(Athyrium omeiense)二回疏叶蹄盖蕨(Athyrium dissitifolium)方氏蹄盖蕨(Athyrium fangii)佛瑞蹄盖蕨(Athyrium fauriei)福贡蹄盖蕨(Athyrium sp.)高超蹄盖蕨(Athyrium excelsium)高山蹄盖蕨(Athyrium silvicola)光蹄盖蕨(Athyrium otophorum)光轴蹄盖蕨(Athyrium sp.)广南蹄盖蕨(Athyrium guangnanense)贵州蹄盖蕨(Athyrium pubicostatum)海南蹄盖蕨(Athyrium hainanense)蒿坪蹄盖蕨(Athyrium criticum)禾秆蹄盖蕨(Athyrium yokoscense)合欢山蹄盖蕨(Athyrium cryptogrammoides)黑秆蹄盖蕨(Athyrium wallichianum)黑合蹄盖蕨(Athyrium × pseudocryptogrammoides)黑鳞蹄盖蕨(Athyrium melanolepis)黑龙江蹄盖蕨(Athyrium rubripes)黑足蹄盖蕨(Athyrium nigripes)红苞蹄盖蕨(Athyrium nakanoi)红柄蹄盖蕨(Athyrium erythropodum)华中蹄盖蕨(Athyrium wardii)鸡冠蹄盖蕨(Athyrium sp.)姬蹄盖蕨(Athyrium subrigescens)尖阿蹄盖蕨(Athyrium × hohuanshanense)尖头蹄盖蕨(Athyrium vidalii)剑叶蹄盖蕨(Athyrium attenuatum)介贵山蹄盖蕨(Athyrium sp.)金平蹄盖蕨(Athyrium adpressum)金沙江蹄盖蕨(Athyrium jinshajiangense)居中蹄盖蕨(Athyrium interjectum)绢毛蹄盖蕨(Athyrium sericellum)库尔海蹄盖蕨(Athyrium sp.)林光蹄盖蕨(Athyrium decorum)凌云蹄盖蕨(Athyrium infrapuberulum)泸定蹄盖蕨(Athyrium ludingense)鹿角蹄盖蕨(Athyrium araiostegioides)裸囊蹄盖蕨(Athyrium pachyphyllum)麦秆蹄盖蕨(Athyrium fallaciosum)毛聂拉木蹄盖蕨(Athyrium sp.)毛叶蹄盖蕨(Athyrium suprapuberulum)毛翼蹄盖蕨(Athyrium dubium)毛轴蹄盖蕨(Athyrium hirtirachis)昴山蹄盖蕨(Athyrium maoshanense)玫瑰蹄盖蕨(Athyrium roseum)蒙自蹄盖蕨(Athyrium mengtzeense)密羽华中蹄盖蕨(Athyrium wardii var. imbricatum)密羽蹄盖蕨(Athyrium imbricatum)墨脱蹄盖蕨(Athyrium medogense)南岳蹄盖蕨(Athyrium nanyueense)逆叶蹄盖蕨(Athyrium reflexipinnum)聂拉木蹄盖蕨(Athyrium nyalamense)聂拉木蹄盖蕨(原变种)(Athyrium nyalamense var.)坡生蹄盖蕨(Athyrium clivicola)坡生蹄盖蕨(原变种)(Athyrium clivicola var.)启无蹄盖蕨(Athyrium wangii)秦氏蹄盖蕨(Athyrium chingianum)日本蹄盖蕨(Athyrium niponicum)日本蹄盖蕨(原变型)(Athyrium niponicum var.)软刺蹄盖蕨(Athyrium strigillosum)瑞丽蹄盖蕨(Athyrium ruilicolum)三回蹄盖蕨(Athyrium tripinnatum)上毛蹄盖蕨(Athyrium suprapubescens)湿生蹄盖蕨(Athyrium devolii)石生蹄盖蕨(Athyrium emeicola)瘦叶蹄盖蕨(Athyrium sp.)疏叶蹄盖蕨(Athyrium dissitifolium)疏叶蹄盖蕨(原变种)(Athyrium dissitifolium var.)疏羽蹄盖蕨(Athyrium nephrodioides)松谷蹄盖蕨(Athyrium sp.)宿蹄盖蕨(Athyrium anisopterum)胎生蹄盖蕨(Athyrium viviparum)
同形蹄盖蕨(Athyrium uniforme)尾羽蹄盖蕨(Athyrium caudatum)乌蒙山蹄盖蕨(Athyrium wumonshanicum)无盖蹄盖蕨(Athyrium exindusiatum)无毛华中蹄盖蕨(Athyrium wardii var. glabrum)西畴蹄盖蕨(Athyrium xichouense)希陶蹄盖蕨(Athyrium dentigerum)溪边蹄盖蕨(Athyrium deltoidofrons)溪边蹄盖蕨(原变种)(Athyrium deltoidofrons var.)喜马拉雅蹄盖蕨(Athyrium fimbriatum)狭基蹄盖蕨(Athyrium mehrae)狭叶蹄盖蕨(Athyrium flabellulatum)线羽蹄盖蕨(Athyrium lineare)腺毛蹄盖蕨(Athyrium glandulosum)腺叶蹄盖蕨(Athyrium supraspinescens)小蹄盖蕨(Athyrium minimum)斜羽蹄盖蕨(Athyrium adscendens)芽胞蹄盖蕨(Athyrium clarkei)岩生蹄盖蕨(Athyrium rupicola)异孢蹄盖蕨(Athyrium × heterosporum)易贡蹄盖蕨俞氏蹄盖蕨(Athyrium yui)元阳蹄盖蕨(Athyrium yuanyangense)圆果蹄盖蕨(Athyrium bucahwangense)圆羽蹄盖蕨(Athyrium sp.)贞丰蹄盖蕨(Athyrium zhenfengense)中甸蹄盖蕨(Athyrium chungtienense)中华蹄盖蕨(Athyrium sinense)中间蹄盖蕨(Athyrium intermixtum)中缅蹄盖蕨(Athyrium brevisorum)中锡蹄盖蕨(Athyrium himalaicum)中越蹄盖蕨(Athyrium christensenii)轴果蹄盖蕨(Athyrium epirachis)轴生蹄盖蕨(Athyrium rhachidosorum)紫柄蹄盖蕨(Athyrium kenzo-satakei)紫柄蹄盖蕨(原变种)(Athyrium kenzo-satakei var.)