槲蕨Drynaria roosii Nakaike

别名：石岩姜、岩连姜、猴姜

科名：槲蕨科 Drynariaceae

属名：槲蕨属 Drynaria

《中国植物志》第6(2)卷284页
  3.槲蕨（蕨类植物图谱）图版65：1-4
  Drynaria roosii Nakaike, New Fl. Jap. Pterid. Rev. et enlarg. 841, f. 882. 1992. Drynaria fortunei (Kunze ex Mett.) J. Sm. in Seem., Bot. Voy. Herald [Fl. Hongkong] 425. 1857. non T. Moore in Gard. Chr. 708. 1855. (＝Microsorum fortunei) ; T. Moore, Ind. Fil. 346. 1862; J. Sm., Hist. Fil. 108. 1875; Diels in Engl., Bot. Jahrb. 29 (1): 207. 1900; in Engl. et Prantl, Nat. Pfl. 1 (4): 330. 1902; Christ in Bull. Soc. Bot. Fr [ser. 4 (5)] 52, Mem. 1: 22. 1905; C. Chr., Ind. Fil. 247. 1906; Hand. -Mazz., Symb. Sin. 6: 47. 1929; Ogata, Ic. Fil. Jap. 2: Pl. 68. 1929; Ching, Ic. Fil. Sin. 4: Pl. 192. 1937; Y. C. Wu et al. in Bull. Dep. Biol. Sun Yatsen Univ. 3: 342, t. 162. 1932; Tardieu et C. Chr. Fl. Indo-Chine 7 (2): 520. 1941; 傅书遐, 中国主要植物图说·蕨类植物门241, 图325. 1957; Ic. Corm. Sin. 1: 271. 1972; De Vol in H. L.Li et al., Fl. Taiwan 1: 211, PI. 74. 1975; M. C. Roos, Phylog. Syst. Drynar. Polyp. [Utrecht]286. 1985; Tagawa et K. Iwats., Fl. Thailand 3 (4): 546, f. 55: 1. 1989. Shieh et al., Fl. Taiwan 2nd ed. 1: 484. Pl. 188. 1994. ——Polypodium fortunei Kunzeex Mett., Farngatt. 1, Polyp. 121, t. 3: 42-45. 1857: Hook., Sp. Fil. 5: 95. 1864; Baker in Hook. et Baker, Syn. Fil. 367: 1868; Franch. in Nouv. Arch. Mus. [Pl. David.]11. 10: 121. 1887: Baker in J. Bot. (London) 230. 1888; Christ, Farnkr. 119. 1897; in Warb., Monsunia 1: 63. 1900: in Bull. Soc. Bot. Ital. 297. 1901. ——Drynaria quercifolia auct. non J. Sm.: J. Bot. (London) 357. 1857. Polypodium quercifolium auct. non L. (1753): Hook. in Blakiston, Five Months on the Yangtze 366. 1862. ——？Polypodium biforme Lour., Fl. Cochin. 827. 1790; Sw., Syn. Fil. 62. 1806.
  通常附生岩石上，匍匐生长，或附生树干上，螺旋状攀援。根状茎直径1-2厘米，密被鳞片；鳞片斜升，盾状着生，长7-12毫米，宽0. 8-1. 5毫米，边缘有齿。叶二型，基生不育叶圆形，长（2-）5-9厘米，宽（2-）3-7厘米，基部心形，浅裂至叶片宽度的1/3，边缘全缘，黄绿色或枯棕色，厚干膜质，下面有疏短毛。正常能育叶叶柄长4-7 (-13)厘米，具明显的狭翅；叶片长20-45厘米，宽10-15 (-20)厘米，深羽裂到距叶轴2-5毫米处，裂片7-13对，互生，稍斜向上，披针形，长6-10厘米，宽（1.5-）2-3厘米，边缘有不明显的疏钝齿，顶端急尖或钝；叶脉两面均明显；叶干后纸质，仅上面中肋略有短毛。孢子囊群圆形，椭圆形，叶片下面全部分布，沿裂片中肋两侧各排列成2-4行，成熟时相邻2侧脉间有圆形孢子囊群1行，或幼时成1行长形的孢子囊群，混生有大量腺毛。
  产江苏、安徽、江西、浙江、福建、台湾、海南、湖北、湖南、广东、广西、四川、重庆、贵州、云南。附生树干或石上，偶生于墙缝，海拔100-1800米。越南、老挝、柬埔寨、泰国北部、印度（阿萨姆）也有。模式标本采自我国香港。
  本种植物的根状茎在许多地区作“骨碎补”用，补肾坚骨，活血止痛，治跌打损伤、腰膝酸痛。
形态特征：多年生附生草本，高25-50厘米。根状茎粗壮；长而横走，密披棕褐色鳞片；鳞片线状钻形，边缘有不广卵形，长5-10厘米，宽3-6厘米，先端急尖，基部心40厘米，宽14-18厘米，具有狭翅的柄，羽状深裂，裂片7-13对，互生，阔披针形，长7-9厘米，宽2-3厘米，先端急尖或钝，下部羽片缩短，基部各羽片缩成耳状，厚纸质，绿色，无毛；叶脉明显，网状，粗而凸起。孢子囊群盖。孢子成熟期10-11月。
分    布：全国
生    境：岩石缝、树干或墙上
繁殖方式：孢子
习    性：荫生
药用部位：根茎
药用功能：补肾、强骨、止痛
药用主治：肾虚久泻、耳鸣、齿痛、脱发、跌扑闪挫、筋骨伤损。

《Flora of China》 Vol. 2-3 (2013)
Drynaria roosii  Nakaike New Fl. Jap. Pterid. 841. 1992.
槲蕨   hu jue
Polypodium fortunei Kunze ex Mettenius, Abh. Senckenberg. Naturf. Ges. 2: 121. 1856, not (T. Moore) E. J. Lowe (1856); Drynaria fortunei (Kunze ex Mettenius) J. Smith (1857), not T. Moore (1855).
Rhizome shortly creeping, 1-2 cm in diam.; scales peltate, 7-12 × 0.8-1.5 mm, margin dentate; fronds dimorphic, glabrous; basal fronds overlapping, sessile, (2-)5-9 × (2-)3-7 cm, base cordate, shallowly lobed to 1/3, abaxially sparsely hairy; foliage fronds stalked, stipe 4-7(-13) cm, conspicuously winged; lamina pinnatifid up to 2-5 mm from costa, 20-45 × 10-15(-20) cm, apex aborted or not; pinnae 7-13 pairs, slightly ascending, lanceolate, 6-10 × (1.5-)2-3 cm, margin obscurely dentate, apex obtuse or acute. Sori in 2-4 rows between costa and margin, 1 row between lateral veins, paraphyses many, glandular. Spores with globules.
Epiphytic or epilithic, often on limestone, or on buildings; 100-1800 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan [India (Assam), N Thailand, Vietnam].
The rhizome of Drynaria roosii is used in traditional Chinese medicine as a medicinal herb, known as a kind of “Gu sui bu,” normally derived from Davallia. This species was widely known as Drynaria fortunei (Kunze ex Mettenius) J. Smith, but this is a later homonym of D. fortunei T. Moore (=Microsorum fortunei (T. Moore) Ching.).