34 6. ALSOPHILA 



deciduous, bullate scales beneath ; sori very deciduous, intermediate between the 

 costa and margin ; recej^t. elevated, with few hairs. — HA. and Or. Ic. F. t. 213-215. 

 Sp. Ivjo. 39. t. 19. B. Als. nitens, J. Sin. (fide Griseb.). 



Hab. "W. Indies ; Cuba, 0. Wright, with large, glossy, lanceolate scales at the base of 

 the stipes, 1 in. or more 1. 



13. A. ferox, Presl ; fr. ample, tripinnate ; rach,ises brown-stramineous, the 

 main ones often strongly muricated ; pinncB ovate-lanceolate, l-lj ft. 1. ; pinnl. 

 sessile, ligulate, 3-4 in. 1., ^- j in. br. ; seff. close, ligulate, blunt, denticulate, often 

 under 1 lin. br. ; texture thin, not coriaceous ; both sides bright-green, slightly 

 hairy on the ribs, not scaly ; veins close, forked, 10-12-jugate ; sori minute, 

 medial.— ^A. Sp. 1. p. 41. A. armata, Mart. Ic. Crypt, t. 48, non Presl. 

 A. aculeata, J. Sm. 



Hab. Spread through the whole of Tropical America. 



14. A. leucolepis, Mart.; fr. ample, tripinnate; rachises grey-stramineous, naked, 

 smooth ; pinnae oblong-lanceolate, l-lj ft. 1. ; pinnl. ligulate-lanceolate, nearly 

 sessile, 3-4 in. 1., j-1 in. br. ; segm. ligulate, not close, blunt, | in. br., denticulate ; 

 texture rigidly membranous ; both sides green, the lower with copious minute 

 ■white broad scales on the ribs ; tieins 7-8-jugate, forked ; sori minute, medial. — 

 Ic. Cri/pt. t. '^G. Hk. 8p. \. p. 4\. 



Hab. Brazil and Columbia. — Perhaps not more than a variety of imfesta, bearing the 

 same relation to the type that Arhuscula has to procera. 



16. A. infesta, Kze. ; fr. ample, tripinnatifid ; rachises brown-stramineous, 

 slightly pubescent, the main ones muricated ; pinnce oblong-lanceolate, 1-1^ ft. ; 

 pinnl. ligulate, 3 in. 1.; f -| in. br., cut down to a narrow wing ; segm. J in. br., 

 ligulate, blunt, not close, subentire ; texture subcoriaceous ; both sides green, 

 lower slightly pubescent, scarcely furfuraceous on ribs ; vein^ 7-8-jugate, lower 

 forked ; sori minute, medial ; recept. paraphysate. — Hk, Sp. l.p. 42. 



Hab. Tropical America ; widely spread. 



16. A. atrovirens, Presl ; fr. ample, trlpinnatifid ; rachises substramineous, 

 glabrous beneath, smooth or muricated ; pinnce lanceolate, 9-16 in. 1., 3-4 in. br. ; 

 pinnl. subsessile, f -^ in. br., cut about halfway down to the rachis ; segm. blunt, 

 ascending, entire, J in. br. ; texture subcoriaceous ; both sides green, glabrous, 

 without scales ; veins 4-6-jugate, simple ; sori minute, medial. — Hk. Sp. 1. p. 46. 

 Polyp, atrovirens, Langs, and Fisch. Ic. t. 14. A. Hookeriana, Klotusch, Hk. Sp, 

 1. p. 30. 



Hab. South Brazil. 



17. A. elongata, Hk.; sharply aculeated, glabrous, except on the rachis above ; 

 fr. bipinnate ; prim, pinnce 2-3 ft. 1., 8 in. w. ; pinnl. 6 in. and more L, lan- 

 ceolate, much elongated, pinnatifid nearly to the rachis, terminating in a long, 

 narrow, serrated, caudate acumen ; lobes 5-6 lines 1., remote, linear, rather 

 acute, rigid, much falcated, the margins recurved, serrated ; veins twice or thrice 

 forked from near the base ; sori numerous, covering the entire segments except 

 at the apex ; bullate scales none, or quickly deciduous ; recept. very hairy .^—.^. 

 Sp. 1. p. 43. 



Hab. Columbia, Bartweg, n. 1528 ; Central America, Barclay, Seemaim. — Since first 

 I published this, I have received specimens from other collectors, identically the 

 same with our plant, and to one of which Mr, J. Smith had given the name of Als, 

 Tumaeensis. 



