阔羽贯众

Cyrtomium yamamotoi Tagawa in Acta Phytotax. Geobot 7: 187. 1938; Shing in Acta Phytotax. Sinica Addit. I: 28. 1965; Fl. Tsinling 2: 150; 1974; 蒋木青, 安徽植物志175. 180. 1985; Shing in Fl. Jiangxi 1: 294. 303. 1993; C. F. Zhang, Fl. Zhejiang 1: 213. 1993. ——Polystichum facatum Diels f. acuminatum Diels in Engl. Bot. Jahrb. 29: 159. 1900. ——Cyrtomium falcatum var. acuminatum (Diels) C. Chr. In Acta Hort. Gothob. 1: 72. 1924. ——C. fortunei var. intermedium Tagawa in Acta Phytotax. Geobot. 4: 39. cum f. 1935 et Col. Ill. Jap. Pterid. 85. 197. 1959; Kurata in Sci. Rep. Yokosuka City Mus. 8: 37. 46. 1963; Nakaike, N. Fl. Jap. Pterid. 356. 1982. ——C. fortunei f. intermedia (Tagawa) Ching in Bull. Chin. Bot. Soc. 2 (2): 105. 1936. ——C. muticum (Christ) Ching f. acuminatum (Diels) Ching 1. c. 98. 1936. ——C. macrophyllum Tagawa var. acuminatum (Diels) Tagawa in Acta Phytotax. Geobot. 7: 78. in nota 1938. ——C. simile Ching ex Shing 1. c. 29. 1965; Fl. Tsinling 2: 149. 1974. ——C. mediocre Ching et Shing ex Shing 1. c. 37. 1965.

var. yamamotoi

植株高40-60厘米。根茎直立，密被披针形黑棕色鳞片。叶簇生，叶柄长22-30厘米，基部直径2-3毫米，禾秆色，腹面有浅纵沟，密生卵形及披针形黑棕色或中间黑棕色边缘棕色的鳞片，鳞片边缘有小齿，上部渐稀疏；叶片卵形或卵状披针形，长24-44厘米，宽12-18厘米，先端钝，基部略狭，奇数一回羽状；侧生羽片4-14对，互生，略斜向上，有短柄，披针形或宽披针形，多少上弯成镰状，中部的长8-12厘米，宽3-3.5厘米，先端渐尖成尾状，基部圆楔形或宽楔形不对称、上侧有半圆形或尖的耳状凸，边缘全缘或近顶处有前倾的小齿；具羽状脉，小脉联结成3-4行网眼，腹面不明显，背面微凸起；顶生羽片卵形或菱状卵形，2叉或3叉状，长8-12厘米，宽6-8厘米。叶为纸质，两面光滑；叶轴腹面有浅纵沟，疏生披针形黑棕色或棕色鳞片。孢子囊群遍布羽片背面；囊群盖圆形，盾状，边缘有齿缺。

产陕西南部、甘肃南部、安徽（黄山）、浙江、江西（庐山）、湖北（均县、建始）、湖南（石门、大庸）、广西、四川、贵州。生林下，海拔400-2100米。也分布于日本。

var. intermedium (Diels) Ching et Shing ex Shing in Acta Phytotax. Sinica Addit. I: 29. 1965 et Fl. Jiangxi 1: 294. 303; C. F. Zhang, Fl. Zhejiang 1: 213. 1993. ——Polystichum falcatum Diels f. intermedium Diels in Engl. Bot. Jahrb. 29: 195. 1900. ——Cyrtomium falcatum Presl var. intermedium (Diels) C. Chr. in Acta Hort. Gothob. 1: 72. 1924. ——Polystichum caryotideum (Wall.) Diels var. clivicolum Makino in Journ. Jap. Bot. 3 (2): 6. 1928. ——Cyrtomium caryotideum Presl var. intermedium (Diels) C. Chr. in Amer. Fern Journ. 20 (2): 51. 1930. ——C. clivicolum (Makino) Tagawa in Acta Phytotax. Geobot. 3 (2): 61. f. 1 (1-4) 1934.——C. fortunei J. Sm. var. clivicolum (Makino) Tagawa 1. c. 4: 39. 1935 et Col. Ill. Jap. Pterid 85. 197. 1959; Kurata in Sci. Rep. Yokosuka City Mus. 8: 37. 46. 1963; Nakaike, N. Fl. Jap. Pterid. 355. f. 355a. 1982; H. Ito, Ogata Ic. Fil. Jap. Rev. 3: pl. 434. 1982.——C. muticum (Christ) Ching f. intermedium (Diels) Ching in Bull. Chin. Bot. Soc. 2 (2): 98. 1936.

与原变种不同处在于羽片边缘波状或具粗钝齿。

产陕西、安徽、浙江、江西、湖北、湖南、广西、四川、重庆、贵州、云南。生林下，海拔400-2000米。日本也有分布。模式标本采自重庆南川。