C. ALSOrHILA- 35 



18. A. Poeppigii, Hk. ; "glalirous except the racliis above; pinnce closely 

 pinnated ; •jom;//, elongated, sessile, oblong-lanceolate, much and suddenly acu- 

 minated, ])innatifid nearly to the costa ; lobes thick and coriaceous, crowded, 

 narrow-oblong, falcate, very obtuse, densely clothed witli sori to the very apex ; 

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

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



Hab. Peru, Poeppiff, Ruiz et Pav. in Herh. nostr. — This appears to me quite distinct 

 from the true A Is. villosa, Kze. (which is the Chnoophora Humboldtii, Kl}.), and more 

 allied to our Als. Gardneri. 



19. A. villosa, 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 H 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. 1., oblong-lanceolate, gradually but obtusely acuminate, more or less 

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

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

 and the margin ; capsules mixed with co])ious hairs. — Hk. Sp. I. p. 44. Cvathea, 

 H. B. K. Nov. Gen. \.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 U. B. K. and by Martins. 



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

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

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

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



feHile 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 

 ^-\0."—Mart. Cr. Bras. p. 73. t. 50. Hk. Sp. 1. p. 44. 



Hab. S. Brazil. — Moore alludes to its affinity with his A. axillaris, Poh/pod. axWare, 

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

 resemble. 



21. A. hirta, Klf. ; "/a 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. I. 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-l)lack ; fr. deep green, submembianaceous, sparsely hairy on the 

 cost£e and costules, rarely with a few deciduous scales beneath ; 2»'i>n. pin7ice 

 12-14 in. 1., 4-5. in. w. ; jnnnl. 2-2| in. 1., ^ in. w., 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. — 3Iai-t. Cr. Bras. p. 71. t. 47. Hk. &/. I. p. 45. 



Hab. Eio Negro, Brazil. — It were to be wished that many other S. American jdZaqpAtYce 

 were as readily distinguished as this. 



23. A. radens, Klf. ; " caud. 3 ft. high, 3 in. diam. ; st. 2-3 ft. 1., 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, \\ ft. 1., 



