栏目

鳞轴小膜盖蕨Araiostegia perdurans (Christ) Cop.

鳞轴小膜盖蕨Araiostegia perdurans (Christ) Cop.

别名:裂叶小膜盖蕨;鳞轴小月英葢蕨;小膜盖蕨;鳞轴小膜蕨;

科名:骨碎补科 Davalliaceae

属名:小膜盖蕨属 Araiostegia

《中国植物志》第6(1)卷294页
  9.鳞轴小膜盖蕨(中国植物志)小膜盖蕨(台湾植物志)图版31: 1-10
  Araiostegia perdurans (Christ) Cop. in Univ. Calif. Publ. Bot. 12: 400. 1931; Tagawa in Jap. Journ. Bot. 12: 488. 1936 et in Acta Phytotax. Geobot. 24: 179. 1970; H. Ito, Fil. Jap. Illustr. f. 31. 1944; Ching in Chien et Chun, Fl. Reip. Pop. Sin 2: 294. 1959; Icon. Corm. Sin. 1: 143, f. 285. 1972; DeVol et T. Y. Yang in H. L. Li et al.,Fl. Taiwan 1: 270, Pl. 95. 1975; Ching et al. in C. Y. Wu, Fl. Xizang. 1: 285, f. 68 (4-6). 1983. ——Davallia perdurans Christ in Bull. Herb. Boiss 6: 970. 1898; Diels in Engl. u. Prand, Nat. Pflanzenfam. 1 (4): 214. 1899; C. Chr. Ind. Fil. 213. 1905 et in Acta Hort. Gothob. 1: 73. 1924 et inContr. U. S. Nat. Herb. 26: 204. 1931. ——Humata perdurans Hieron. in Hedwigia 62: 12. 1920. ——Leucostegia perdurans C. Chr. in Contr. U. S. Nat. Herb. 26: 294. 1931 et Ind. Fil. Suppl. 3: 121. 1934. ——Davallia parvipinnula Hayata in Journ. coll. Sci. Univ. Tokyo 30: 431. 1900. ——Leucostegia parvipinnula Hayata, Icon. Fl. Form. 4: 205, f. 139. 1914; Ogata, Icon. Fil. Jap. 1: Pl. 33. 1928; C. Chr. Ind. Fil. Suppl. 3: 121. 1934. ——Araiostegia parvipinnula Cop. in Philip. Journ. Sci. 34: 241. 1927: Ching in Chien et Chun, Fl. Reip. Pop. Sin. 2: 292. 1959; W. C. Shieh et al. in Fl. Taiwan, sec. ed. 1: 186, Pl. 74. 1994, “parvipinata”. ——Davallia clarkei auct. non Bak. 1874: Nooteboom in Acta Phytotax. Sinica 34 (2): 168. 1996.
  植株高50-70厘米。根状茎粗健,长而横走,粗6-8毫米,密被鳞片;鳞片阔披针形,长约6毫米,先端渐尖,边缘有不整齐的小齿,膜质,棕色而稍有光泽,覆瓦状蓬松地覆盖于根状茎上。叶远生,相距3-5厘米;柄长25-35厘米,粗3-4毫米,暗棕褐色或棕禾秆色,上面有深而狭的纵沟,基部密被鳞片,向上渐稀疏;叶片卵形或三角状卵形,长30-40厘米,宽20-35厘米,先端渐尖,基部阔圆形,四回羽状细裂;羽片10-15对,下部1-3对近对生,向上的互生,无柄,斜展,彼此疏离,基部一对几与上方一对同形,椭圆形或椭圆披针形,长10-20厘米,宽3.5-8厘米,三回细羽裂;一回小羽片14-16对,无柄,平展,彼此密接,基部一对对生,向上的互生,基部一对稍大,长1. 5-5厘米,宽1-1. 5厘米,椭圆形,钝头,基部两侧对称或近对称,上侧截形并覆盖羽轴,下侧楔形,深羽裂达具狭翅的小羽轴;二回小羽片5-10对,无柄,互生,斜展,斜卵形,基部上侧一片较大,长7-10毫米,宽4-8毫米,钝头,基部不对称;三回小羽片4-5对,近无柄,互生,斜向上,基部上侧一片较大,斜卵形,钝头,基部下侧下延,下部2-3对为羽裂,向上的二裂为不等长的短裂片,或为单一;末回裂片短披针形,长1.5-3毫米,尖头;向上羽片逐渐缩小为阔披针形,先端渐尖,基部斜阔楔形至近截形。叶脉不明显,分叉,每裂片有小脉1条。叶薄草质,干后黄绿色或棕绿色,各回羽轴的分叉点下面通常有几个卵形大鳞片。孢子囊群小,多数,位于裂片的缺刻之下,着生于上侧短小脉顶端或小脉分叉处,上方外侧有线形的长角状突起;囊群盖半圆形,基部黑褐色,边缘浅褐色,膜质,全缘,基部着生。
  产浙江 (遂昌、庆元、淳安) 、江西 (武宁、铅山) 、福建、台湾、广西西部 (隆林、凌乐) 、四川 (康定、石棉、越西、冕宁、甘洛、日地) 、贵州 (毕节、安龙、兴仁、水城、兴义、赫章) 、云南 (邓川、德钦、漾濞、蒙自、丽江、维西、中甸、景东、洱源、通海、大姚、贡山、罗茨、文山、麻栗坡、泸水、绿春、禄劝、嵩明、昆明) 、西藏 (察隅) 。附生于山地混交林中树干上, 海拔1 900-3400米。叶于旱季枯死,雨季出新叶。模式标本产地:云南。

《Flora of China》 Vol. 2-3 (2013)
Araiostegia perdurans  (Christ) Copeland Univ. Calif. Publ. Bot. 12: 397. 1931.
鳞轴小膜盖蕨   lin zhou xiao mo gai jue
Davallia perdurans Christ, Bull. Herb. Boissier 6: 970. 1898; Araiostegia parvipinnula (Hayata) Copeland; Araiostegiella perdurans (Christ) M. Kato & Tsutsumi; Davallia parvipinnula Hayata; Humata perdurans (Christ) Hieronymus; Leucostegia parvipinnula (Hayata) Hayata; L. perdurans (Christ) C. Christensen.
Rhizome long creeping, robust, 6-8 mm in diam., densely covered with scales. Scales brown, broadly lanceolate, 6-7 mm, membranous, basifixed with cordate base, margin with irregular teeth, apex acuminate. Fronds remote, 3-5 cm apart; stipe brownish stramineous, adaxially thickly grooved, 25-35 cm, 3-4 mm in diam., base covered with scales, sparse upward; lamina yellowish green or brownish green when dry, 4-pinnatifid, ovate or triangular-ovate, 30-40 × 20-35 cm, base broadly rounded, apex acuminate. Pinnae 10-15 pairs, alternate or basal ones opposite, sessile, basal pair similar to upper one, elliptic or elliptic-lanceolate, 10-21 × 3.5-8 cm; pinnules 12-16 pairs, sessile, basal pair elliptic, 1.5-4.5 × 1-1.5 cm, base nearly symmetrical, apex obtuse; ultimate lobes shortly lanceolate, 1.5-3 mm, apex acute. Rachis with several large, ovate scales at forking point. Veins inconspicuous, forked, with 1 veinlet in each lobe. Sori numerous, terminal on veinlet; indusium brown, dark brown at base, semicircular, entire, attached at base.
● Dense mixed forests, epiphytic on tree trunks; 1900-3400 m. Fujian, Guangxi, Guizhou, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang.

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