6. ALSOPHILA. 35 



18. A. Poeppigii, Hk. ; "glabrous except the rachis above; pinnae closely 

 pinnated ; pinnl. elongated, sessile, oblong-lanceolate, much and suddenly acu- 

 minated, pinnatifid nearly to the costa ; lobes thick and coriaceous, crowded, 

 narrow-oblong, falcate, very obtuse, densely clothed with sori to the very apex j 

 the margins slightly reflexed ; bullate scales none ; copious hairs among the 

 capsules." Hk. Sp. 1. p. 43. A. villosa, Kze. not Pr. 



Hab. Peru, Poeppig, Ruiz et Pav. in Herb, nostr. This appears to me quite distinct 

 from the true Ah. mllosa, Kze. (which is the Chrioophora Humboldtii, Klf.), and more 

 allied to our Als. Gardneri. 



19. A. mllosa, Pr. ; st. short, 1 ft. or more long, unarmed or only beset with 

 small, elevated, tubercular points, at the base densely clothed with ferruginous, 

 subulate, glossy scales 1^ in. 1. ; fr. coriaceous, bi-subtripinnate, glabrous above, 

 with a copious, lax, deciduous tomentum on both sides in the young state ; pinnl. 

 1-3 in. L, oblong-lanceolate, gradually but obtusely acuminate, more or less 

 deeply pinnatifid ; lobes oblong, obtuse, entire or coarsely serrated ; veins pin- 

 nated ; veinlets forked ; sori occupying nearly the whole space between the costule 

 and the margin ; capsules mixed with copious hairs. Hk. Sp. 1. p. 44. Cvathea, 

 //. B. K. Nov. Gen. 1. p. 24-7. t. 670. A. rigidula, Mart. Or. Bras. t. 51. A. 

 Humboldtii, Kl. Chnoophora, Klfs. 



Hab. Tropical America ; New Granada, Brazil ; Venezuela, Fendler, n. 47 and 492 ; 

 S. Chili, Cuming, Capt. King. Well figured by H. B. K. and by Martius. 



20. A. plagioptcris, Mart. ; "fr. bipinnato-partite ; st. aculeate ; partial rachis 

 and veins downy above ; scales on the veins few and deciduous ; pinnae linear- 

 oblong, acuminate ; pinnl. linear, much acuminated and pinnatifid ; lobes 

 between the rather broad sinuses lanceolate, falcate, toothed at the apex ; the 



fertile ones nearly entire, the sterile serrated ; in each pinnl. the lowest and 

 shortest lobe is obliquely adnate with the rachis ; sori upon all the segments 

 8-10." Mart. Cr. Bras. p. 73. t. 50. Hk. Sp. 1. p. 44. 



Hab. S. Brazil. Moore alludes to its affinity with his A. axillaris, Polypod. axillare, 

 Rad. Fil. Bras. t. 41, which is A. hirta, Klf., and which my specimens very much 

 resemble. 



21. A. hirta, Klf. ; t( fr. trifido-tripartite ; slightly hairy on both sides, more 

 so beneath and there minutely scaly ; st. and underside of the rachis aculeate, 

 and, as well as the partial rachis rough with hairs ; pinnce linear-oblong, shortly 

 acuminate, deeply pinnatifid ; lobes broad-lanceolate, inciso-semipinnatifid, ult. 

 ones obliquely ovate, acutely serrated above ; sori in each segment 8 16." Mart. 

 Cr. Bras. p. 69. t. 44. Hk. Sp. 1. p. 45. (A. hirsuta). Polyp, arillare, Rad. Fil. 

 Bras. p. 2. t. 41. 



Hab. Brazil. 



22. A. nigra, Mart. ; st. rather slender, aculeated and as well as the principal 

 rachises ebony-black ; fr. deep green, submembranaceous, sparsely hairy on the 

 costse and costules, rarely with a few deciduous scales beneath ; prim, pinnce 

 12-14 in. 1., 4-5 in. w. ; pinnl. 2-2| in. 1., \ in. \v., oblong, shortly acuminate, 

 deeply f of the way to the costa pinnatifid, subpetiolate ; lobes oblong, obtuse, 

 crenato-serrate ; veins simple or forked ; sori intermediate between the costule 

 and the margin. Mart. Cr. Bras. p. 71. t. 47. Hk. Sp. \.p. 45. 



Hab. Rio Negro, Brazil. It were to be wished that many other S. American A Isophilce 

 were as readily distinguished as this. 



23. A. radens, Klf. ; " caud. 3 ft. high, 3 in. diam. ; st. 2-3 ft. I., clothed 

 with ovate, acuminated, pale brown scales, below together with the ramifica- 

 tions aculeate, above more densely paleaceo-subvillous ; fr. membranaceous, 

 lanceolato-ovate, bipinnatisect ; prim. segm. at length deciduous, 1^ ft. 1., 



