ICONES FILICUM SINICARUM 
PLATE 223 
_ ADIANTUM FLABELLULATUM Linné 
ADIANTACE 
ADIANTUM FLABELLULATUM Linné Sp. Pl. 2: 1095, 1753; Sw. Syn. Fil. 121. 1806; Hook. Sp. Fil. 
2: 30. 1851; in Journ. Bot. 1857; 330; Hook. & Bak. Syn. Fil. 120. 1867; Benth. Fl. Hongk. 447. 1861; 
Bedd. Ferns South. Ind. t. 218. 1864; Handb. Ferns Brit. Ind. 88. 1883; Fr. et Sav. Enum. Pl. Jap. 
2: 454. 1880; Diels in Engl. u. Prantl, Nat. Pflanzenfam, 1: iv. 284. 1899; C. Chr. Ind. Fil. 26. 1905; 
_ Matsum. et Hayata, Enum. Pl. Form. 617 1906; Dunn & Tutcher, Fl. Kwangt. and Hongk. 338. 
1912; C. Chr. in Acta Hort. Gotheb. 1: 95. 1924; Hand-Mzt. Symb. Sin. 6: 39. 1929; Ogata, Ic. Fil. 
Jap. 2: t. 52. 1929; Wu, Pong & Wong, Polyp. Yaoshan. in Bull. Dept. Biol. Sunyatshan Univ. No. 3: 
226, t. 104. 1932; Tard. et C. Chr. in Fl. Gen. Ind. 7: 189. 1940; Ching in Acta Phytotax. Sinica 6: 326. 
 MOay/, a Soe a ase 
Adiantum fuscum Retz. Obs. 2: 28, t..5. 1781. 
Adiantum amoenum Wall. List n. 78. 1828 (nom. nud.); Hook. & Grev. Ic. Fil. t. 103. 1829; Hook. in 
Lond. Journ. Bot. 1: 294. 1840. 
Rhizome short, erect or oblique, densely clothed in ferruginous-brown, narrowly lanceolate, subulate 
scales attached by base; fronds tufted, erect, stipe of the sterile about 10 cm long, of the fertile to 25 cm 
long, blackish, firm, glossy, terete beneath, but broadly grooved on the upper side especially towards the 
upper part, glabrous above the basal part, but rusty-hirsute in the groove upwards, lamina 23 dicho- 
tomously forked, or nearly so, with the central pinnae longer than the lateral ones, 10-16 cm long, 1.5 cm 
broad, linear-lanceolate, simply pinnate, the other lower pinnae progressively shortened downwards and 
similarly pinnate; wlumate pinnules pectinate, petiolulate, numerous in the central pinnae, 8-10 mm long, 
5-7 mm broad, dimidiate, subrhomboidal, base short-cuneate, the lower edge straight, the inner oblique, 
the outer roundish and, like the upper edge, rather sharply dentate in the sterile part; Zexture subcoria- 
ceous, dry brown, both sides glabrous, slightly glossy above, faintly glaucescent below (bluish in living state), 
upper part of rachis, rachilets and petiole always densely and shortly rusty-hirsute on the upper side; veins 
flabellately forked, prominent on both sides; sori roundish, reniform or transversely oblong, 25 to each 
pinnule, indusium dark-colored, coriaceous, separated by shallow sinuses. 
A widely dispersed species in tropical and subtropical regions of Asia. In China numerous specimens 
have been seen from Hainan, Kwangtung, Kwangsi, Kweichow, southern part of Fukien, Kiangsi, Hunan, 
Szechuan, Yunnan, Chekiang and Taiwan, also Hongkong. A light-demanding fern growing in exposed 
hillsides with acid soil. 
Plate 223. 1. Habit sketch (natural size). 2. Fertile pinna (X 4). 
3. Sterile pinna, showing dentate margin 
(X 4). 4. Scale from the base of stipe (X 50). 
5-6. Sporangium with spores (X 100). 
