裸叶粉背蕨Aleuritopteris duclouxii (Christ) Ching
裸叶粉背蕨Aleuritopteris duclouxii (Christ) Ching
14.裸叶粉背蕨（中国高等植物图鉴）
Aleuritopteris duclouxii (Christ) Ching in Hongk. Nat. 10:199. 1941; Ic. Corm. Sin. 1:162. f. 324. 1972; Ching in Y. L. Chang et al. Sporae Pterid. Sin. 159. t. 34, f. 9-10. 1976; S. K. Wu in Acta Phytotax. Sinica 19 (1): 67. 1981. ——Doryopteris duclouxii Christ in Bull. Acad. Geogr. Bot. Mans 231. 1902.——Cheilanthes duclouxii Ching in C. Chr. Ind. Fil. Suppl. 3:111. 1934 et Ie. Fil. Sin. 3:t. 133. 1935. ——Doryopteris muralis Christ in Bull. Acad. Geogr. Bot. Mans 1904: 111. 1904; C. Chr. Ind. Fil. 244. 1906;——Doryopteris mairei Brause in Hedwigia 54:206. 1914.
植株高达40厘米左右。根状茎短，斜升，先端密被鳞片；鳞片宽披针形，黑色，具棕色狭边。叶簇生；叶柄乌木色或栗褐色，粗壮，长达25厘米，光滑；叶片卵状三角形，宽5-14-厘米，长8-18厘米，羽片2-3对，彼此以无翅叶轴分开；基部一对羽片最大，长可达12厘米以上，不等边三角形，二回羽裂，羽轴上侧全缘或只有少数裂片，裂片短，长0.5-1.5厘米，羽轴下侧裂片发达，基部一片长2-8厘米，宽6-10厘米，先端长尾状，全缘；第二对羽片较短，长8厘米，宽约3厘米，分裂度及形体同第一对，但裂片较少；自第三对羽片以上通常单一，镰刀形，边缘具圆齿，向顶部长尾状。叶干后革质，淡黄色，两面光滑，下面不被白色粉末（极少数标本有少量的白粉），叶脉不明显；叶轴、羽轴与叶柄同色。孢子囊成熟后汇合；囊群盖膜质，棕黄色，全缘，线形，不断裂，孢子极面观为三角状圆球形，周壁表面具较大的颗粒状纹饰。
产四川、云南、贵州、湖南、陕西，生山坡石缝中，海拔1 200-2000米，模式标本采自云南（昆明）。
《Flora of China》 Vol. 2-3 (2013)
Aleuritopteris duclouxii (Christ) Ching Hong Kong Naturalist. 10: 199. 1941.
裸叶粉背蕨 luo ye fen bei jue
Rhizomes ascending, short; scales bicolorous, dark brown to black with lighter margins, lanceolate. Fronds clustered. Stipe reddish brown to black, lustrous, 6-25 cm, scaly at base; scales mostly bicolorous, narrowly lanceolate. Lamina pentagonal or ovate-pentagonal, nearly as long as broad, 5-13 × 5-10 cm, pinnate-pinnatifid to tripinnatifid, thinly leathery when dry, apex acuminate; rachis and costae of same color as stipe. Pinnae 2 or 3 pairs, basal pair largest, 3-5 × 2-4 cm, triangular; pinnules 3 or 4 pairs, basal basiscopic pinnule largest, 2-2.5 cm × 5-10 mm, oblong-lanceolate, pinnatifid or simple; other pairs gradually shortened distally, lanceolate, 1-pinnatifid or simple; ultimate segments deltoid or falcate. Veins pinnate, obscure. Sori consisting of several sporangia, confluent at maturity. False indusia continuous, yellowish green, membranous, margins entire.
● Rock crevices or rock outcrops in forests; 800-2300 m. Guangxi, Guizhou, Hunan, Sichuan, Yunnan.
别名：通经草;一把抓;一把伞;
科名：中国蕨科 Sinopteridaceae
属名：粉背蕨属 Aleuritopteris
14.裸叶粉背蕨（中国高等植物图鉴）
Aleuritopteris duclouxii (Christ) Ching in Hongk. Nat. 10:199. 1941; Ic. Corm. Sin. 1:162. f. 324. 1972; Ching in Y. L. Chang et al. Sporae Pterid. Sin. 159. t. 34, f. 9-10. 1976; S. K. Wu in Acta Phytotax. Sinica 19 (1): 67. 1981. ——Doryopteris duclouxii Christ in Bull. Acad. Geogr. Bot. Mans 231. 1902.——Cheilanthes duclouxii Ching in C. Chr. Ind. Fil. Suppl. 3:111. 1934 et Ie. Fil. Sin. 3:t. 133. 1935. ——Doryopteris muralis Christ in Bull. Acad. Geogr. Bot. Mans 1904: 111. 1904; C. Chr. Ind. Fil. 244. 1906;——Doryopteris mairei Brause in Hedwigia 54:206. 1914.
植株高达40厘米左右。根状茎短，斜升，先端密被鳞片；鳞片宽披针形，黑色，具棕色狭边。叶簇生；叶柄乌木色或栗褐色，粗壮，长达25厘米，光滑；叶片卵状三角形，宽5-14-厘米，长8-18厘米，羽片2-3对，彼此以无翅叶轴分开；基部一对羽片最大，长可达12厘米以上，不等边三角形，二回羽裂，羽轴上侧全缘或只有少数裂片，裂片短，长0.5-1.5厘米，羽轴下侧裂片发达，基部一片长2-8厘米，宽6-10厘米，先端长尾状，全缘；第二对羽片较短，长8厘米，宽约3厘米，分裂度及形体同第一对，但裂片较少；自第三对羽片以上通常单一，镰刀形，边缘具圆齿，向顶部长尾状。叶干后革质，淡黄色，两面光滑，下面不被白色粉末（极少数标本有少量的白粉），叶脉不明显；叶轴、羽轴与叶柄同色。孢子囊成熟后汇合；囊群盖膜质，棕黄色，全缘，线形，不断裂，孢子极面观为三角状圆球形，周壁表面具较大的颗粒状纹饰。
产四川、云南、贵州、湖南、陕西，生山坡石缝中，海拔1 200-2000米，模式标本采自云南（昆明）。
《Flora of China》 Vol. 2-3 (2013)
Aleuritopteris duclouxii (Christ) Ching Hong Kong Naturalist. 10: 199. 1941.
裸叶粉背蕨 luo ye fen bei jue
Rhizomes ascending, short; scales bicolorous, dark brown to black with lighter margins, lanceolate. Fronds clustered. Stipe reddish brown to black, lustrous, 6-25 cm, scaly at base; scales mostly bicolorous, narrowly lanceolate. Lamina pentagonal or ovate-pentagonal, nearly as long as broad, 5-13 × 5-10 cm, pinnate-pinnatifid to tripinnatifid, thinly leathery when dry, apex acuminate; rachis and costae of same color as stipe. Pinnae 2 or 3 pairs, basal pair largest, 3-5 × 2-4 cm, triangular; pinnules 3 or 4 pairs, basal basiscopic pinnule largest, 2-2.5 cm × 5-10 mm, oblong-lanceolate, pinnatifid or simple; other pairs gradually shortened distally, lanceolate, 1-pinnatifid or simple; ultimate segments deltoid or falcate. Veins pinnate, obscure. Sori consisting of several sporangia, confluent at maturity. False indusia continuous, yellowish green, membranous, margins entire.
● Rock crevices or rock outcrops in forests; 800-2300 m. Guangxi, Guizhou, Hunan, Sichuan, Yunnan.