[科普中國]-截裂毛蕨

截裂毛蕨（學名：Cyclosorus truncatus）為金星蕨科毛蕨屬下的一個種。植株高可達2米，葉多數(shù)，簇生。

主要生長于海拔130-650米溪邊林下或山谷濕地。

形態(tài)特征植株高可達2米。根狀莖短而直立，粗壯，木質，先端疏被淡棕色的披針形鱗片。葉多數(shù)，簇生；葉柄長30-50厘米，基部粗6-8毫米，禾稈色，疏被貼生的棕色、卵狀披針形的薄鱗片；葉片長1-1.1米，中部寬30-35（40)厘米，長圓披針形，漸尖頭，基部突然變狹，二回羽裂，羽片35對以上，下部5-6對（或更多對）突然變狹，對生，斜向下，相距4-5厘米，基部一對呈卵狀三角形，長寬不到1厘米，中部羽片長18-23厘米，中部寬1.8-2.5厘米，披針形，長漸尖頭，基部往往稍變狹（我國的大多數(shù)標本往往變寬），圓截形，羽裂達1/3-1/2；裂片35-40對，斜展，接近，長3-6毫米，寬3-4毫米，長方形，截頭或圓截頭，兩側全緣。葉脈兩面明顯，側脈斜上，每裂片6-10對，基部一對出自主脈基部，頂端交結成較高的三角形網(wǎng)眼，并自交結點向缺刻延伸出一條外行小脈和第二對的上側一脈連接，形成斜長方形網(wǎng)眼，第二對的下側一脈和第三對的上側一脈均伸到缺刻底部，其余側脈伸達缺刻以上的葉邊。葉草質至紙質，干后草綠色，除羽軸上面有一二針毛外，兩面無毛，脈間有泡狀突起。孢子囊群生于側脈中部稍下處，每裂片6-8對；囊群蓋中等大，厚膜質，棕色，無毛，宿存。1

生長環(huán)境主要生長于海拔130-650米溪邊林下或山谷濕地。

分布范圍主要分布于臺灣（臺北、南投、臺南、高雄、屏東、臺東）、福建（南靖）、廣東（英德）海南（陵水、尖山）、廣西（大瑤山、百色、武鳴、大明山）、云南（金平、河口、西雙版納）。也廣布于日本、緬甸、印度、中南半島、斯里蘭卡、馬來西亞、波利尼西亞、菲律濱及澳大利亞北部。1

本種提示本種變異頗大，我國產的許多標本，其羽片基部往往變寬，但其他特征與模式標本無異。尖裂毛蕨Cyclosorus truncatus var. acutiloba Ching in Bull. Fan Mem. Inst. Biol.Bot. ser. 8：219. 1938.產云南耿洪和木安（Keng Hung & Muang Hing）。秦后來又將之升為C. kenghungensis Ching in Herb.。正如原描述所說，除了葉草質，裂片先端尖或微尖外，和原變種無異。北京標本館僅存一中部羽片，其側脈在缺刻下有2 1/2-3對，脈間無泡狀凸起。暫列于此，以供參考。1

相關類群縮羽毛蕨 Cyclosorus abbreviatus Ching et Shing ex Shing et J. F. Cheng

漸尖毛蕨 Cyclosorus acuminatus (Houtt. ) Nakai

銳片毛蕨 Cyclosorus acutilobus Ching

銳尖毛蕨 Cyclosorus acutissimus Ching ex Shing et J. F. Cheng

線羽毛蕨 Cyclosorus angustipinnus (Ching) Shing

狹羽毛蕨 Cyclosorus angustus Ching

干旱毛蕨 Cyclosorus aridus (Don) Tagawa

下延毛蕨 Cyclosorus attenuatus Ching ex Shing

腺飾毛蕨 Cyclosorus aureoglandulifer Ching ex Shing

金腺毛蕨 Cyclosorus aureo-glandulosus Ching et Shing ex Ching et C. F. Zhang

百色毛蕨 Cyclosorus baiseensis Ching ex Shing

短柄毛蕨 Cyclosorus brevipes Ching et Shing

多耳毛蕨 Cyclosorus caii Ching ex Shing

三合毛蕨 Cyclosorus calvescens Ching

蒼南毛蕨 Cyclosorus cangnanensis Shing et C. F. Zhang

程氏毛蕨 Cyclosorus chengii Ching ex Shing

秦氏毛蕨 Cyclosorus chingii Z. Y. Liu ex Ching et Z. Y. Liu

慈利毛蕨 Cyclosorus ciliensis Shing

棒腺毛蕨 Cyclosorus clavatus Shing

狹縮毛蕨 Cyclosorus contractus Ching ex Shing

鱗柄毛蕨 Cyclosorus crinipes (Hook. ) Ching

狹基毛蕨 Cyclosorus cuneatus Ching ex Shing

大明山毛蕨 Cyclosorus damingshanensis Ching ex Shing

光蓋毛蕨 Cyclosorus decipiens Ching

德化毛蕨 Cyclosorus dehuaensis Ching et Shing

密羽毛蕨 Cyclosorus densissimus Ching ex Shing

齒牙毛蕨 Cyclosorus dentatus (Forssk.) Ching

疏羽毛蕨 Cyclosorus dissitus Ching ex Shing

獨龍江毛蕨 Cyclosorus dulongjiangensis W. M. Chu

高株毛蕨 Cyclosorus elatus Ching ex Shing

廣葉毛蕨 Cyclosorus ensifer (Tagawa) Shieh.

河池毛蕨 Cyclosorus euphlebius Ching

展羽毛蕨 Cyclosorus evolutus (Bedd. ) Ching

高大毛蕨 Cyclosorus excelsior Ching et Shing

國楣毛蕨 Cyclosorus fengii Ching ex Shing

平基毛蕨 Cyclosorus flaccidus Ching et Z. Y. Liu

梣葉毛蕨 Cyclosorus fraxinifolius Ching

福建毛蕨 Cyclosorus fukienensis Ching

高雄毛蕨 Cyclosorus gaoxiongensis Ching ex Shing

光葉毛蕨 Cyclosorus glabrescens Ching ex Shing

大毛蕨 Cyclosorus grandissimus Ching et Shing

粗齒毛蕨 Cyclosorus grosso-dentatus Ching ex Shing

海南毛蕨 Cyclosorus hainanensis Ching

異果毛蕨 Cyclosorus heterocarpus (Bl.) Ching

毛腳毛蕨 Cyclosorus hirtipes Shing et C. F. Zhang

毛囊毛蕨 Cyclosorus hirtisorus (C. Chr. ) Ching

河口毛蕨 Cyclosorus hokouensis Ching

學煜毛蕨 Cyclosorus houi Ching

毛蕨 Cyclosorus interruptus (Willd. ) H. Ito

閩臺毛蕨 Cyclosorus jaculosus (Christ) H. Ito

景洪毛蕨 Cyclosorus jinghongensis Ching ex Shing

九龍山毛蕨 Cyclosorus jiulongshanensis Chiu et Yao ex Ching

夔州毛蕨 Cyclosorus kuizhouensis Shing

細柄毛蕨 Cyclosorus kuliangensis (Ching) Shing

貴州毛蕨 Cyclosorus kweichowensis Ching ex Shing

寬羽毛蕨 Cyclosorus latipinnus (Benth. ) Tard.-Blot

心祁毛蕨 Cyclosorus laui Ching

雷波毛蕨 Cyclosorus leipoensis Ching et H. S. Kung

龍棲山毛蕨 Cyclosorus longqishanensis Shing

闊羽毛蕨 Cyclosorus macrophyllus Ching et Z. Y. Liu

墨脫毛蕨 Cyclosorus medogensis Ching et S. K. Wu

臨滄毛蕨 Cyclosorus megongensis Ching ex Shing

冕寧毛蕨 Cyclosorus mianningensis Ching ex Shing

多網(wǎng)眼毛蕨 Cyclosorus mollissimus Ching ex Shing

美麗毛蕨 Cyclosorus molliusculus (Wall. ex Kuhn) Ching

多囊毛蕨 Cyclosorus multisorus Ching ex Shing

南川毛蕨 Cyclosorus nanchuanensis Ching et Z. Y. Liu

南嶺毛蕨 Cyclosorus nanlingensis Ching ex Shing et J. F. Cheng

南平毛蕨 Cyclosorus nanpingensis Ching

南溪毛蕨 Cyclosorus nanxiensis Ching ex Shing

黑葉毛蕨 Cyclosorus nigrescens Ching ex Shing

倒披針毛蕨 Cyclosorus oblanceolatus Shing et C. F. Zhang

峨眉毛蕨 Cyclosorus omeigensis Ching

對羽毛蕨 Cyclosorus oppositipinnus Ching et Z. Y. Liu

對生毛蕨 Cyclosorus oppositus Ching ex Shing

腺脈毛蕨 Cyclosorus opulentus (Kaulf.) Nakai

東方毛蕨 Cyclosorus orientalis Ching ex Shing

蝶狀毛蕨 Cyclosorus papilio (Hope) Ching

蝶羽毛蕨 Cyclosorus papilionaceus Shing et C. F. Zhang

寬頂毛蕨 Cyclosorus paracuminatus Ching ex Shing et J. F. Cheng

曲軸毛蕨 Cyclosorus paradentatus Ching ex Shing

長尾毛蕨 Cyclosorus paralatipinnus Ching ex Shing

岳麓山毛蕨 Cyclosorus pararidus Ching ex Shing

華南毛蕨 Cyclosorus parasiticus (L.) Farwell.

小葉毛蕨 Cyclosorus parvifolius Ching

龍勝毛蕨 Cyclosorus parvilobus Ching et Shing ex Shing

少羽毛蕨 Cyclosorus paucipinnus Ching et C. F. Zhang

齒片毛蕨 Cyclosorus pauciserratus Ching et C. F. Zhang

屏山毛蕨 Cyclosorus pingshanensis Ching et H. S. Kung

無腺毛蕨 Cyclosorus procurrens (Mett. ) Ching

蘭嶼大葉毛蕨 Cyclosorus productus (Kaulf. ) Ching

越北毛蕨 Cyclosorus proximus Ching et C. H. Wang

假干旱毛蕨 Cyclosorus pseudoaridus Ching ex Shing

楔形毛蕨 Cyclosorus pseudocuneatus Ching ex Shing

狹葉毛蕨 Cyclosorus pumilus Ching ex Shing

泡泡毛蕨 Cyclosorus pustuliferus Ching ex Shing

矮毛蕨 Cyclosorus pygmaeus Ching et C. F. Zhang

石生毛蕨 Cyclosorus rupicola Ching

三都毛蕨 Cyclosorus sanduensis Shing et P. S. Wang

糙葉毛蕨 Cyclosorus scaberulus Ching

鋸齒毛蕨 Cyclosorus serrifer Ching ex Shing

沙坪壩毛蕨 Cyclosorus shapingbaensis Ching ex Shing

石門毛蕨 Cyclosorus simenensis Shing et C. M. Zhang

同羽毛蕨 Cyclosorus simillimus Ching ex Shing

擬漸尖毛蕨 Cyclosorus sino-acuminatus Ching et Z. Y. Liu

中華齒狀毛蕨 Cyclosorus sinodentatus Ching et Z. Y. Liu

疏囊毛蕨 Cyclosorus sparsisorus Ching ex Shing

狹腳毛蕨 Cyclosorus stenopes Ching et Shing ex Shing

假漸尖毛蕨 Cyclosorus subacuminatus Ching ex Shing et J. F. Cheng

短尖毛蕨 Cyclosorus subacutus Ching

堅葉毛蕨 Cyclosorus subcoriaceus Ching ex Shing

巨型毛蕨 Cyclosorus subelatus (Bak. ) Ching

萬金毛蕨 Cyclosorus subnamburensis Ching ex Shing

臺灣毛蕨 Cyclosorus taiwanensis (C. Chr.) H. Ito

泰寧毛蕨 Cyclosorus tarningensis Ching

頂育毛蕨 Cyclosorus terminans (Hook. ) Shing

河邊毛蕨 Cyclosorus transitorius Ching ex Shing

黃志毛蕨 Cyclosorus wangii Ching

望謨毛蕨 Cyclosorus wangmoensis Shing et P. S. Wang

溫州毛蕨 Cyclosorus wenzhouensis Shing et C. F. Zhang

武陵毛蕨 Cyclosorus wulingshanensis C. M. Zhang

尋烏毛蕨 Cyclosorus xunwuensis Ching et J. F. Cheng

雁蕩毛蕨 Cyclosorus yandangensis Ching et Shing

元江毛蕨 Cyclosorus yuanjiangensis Ching ex Shing

云南毛蕨 Cyclosorus yunnanensis Ching ex Shing

朝芳毛蕨 Cyclosorus zhangii Shing2

本詞條內容貢獻者為:

王建林 - 教授 - 蘭州大學