AL.SOril[LA. 41 



bipiniiate, pinnules lanceolate acuminate sessile deeply piu- 

 natifid nearly to the rachis, numerous small bullate scales 

 beneatl), segments oblong very obtuse entire everywhere 

 clothed with sori even to the acuminated apices. — 0. nearly 

 glabrous above and less hairy beneath. Cyathea nigrescens, 

 K/ofzsch in Herb. Rcy. BcroL 



Hab. Woods, San Gactaiio, Brazil, Gardner, n. 5330.— ^. South Brazil, 

 Sdlow. — This species in some respects resembles A. armata, but is more 

 universally haiiy or almost woolly, and the hairs are less tawny ; the sep- 

 meuts are broader, and more obtuse and entire. 



13. A. fero.v, Presl ; more or less pubescenti-hirsute espe- 

 cially on the nerves, rachis and stipes with long sharp aculei, 

 fronds bipinnate, pinnules sessile broadly lanceolate narrow 

 acuminate deeply pinuatifid almost to the rachis, segments 

 linear-oblong falcate serrated, small bullate scales beneath, 

 nerves forked, sori copious but not wholly covering the seg- 

 ments. A. fei*ox, Presl, Pterid. p. 62. Cyathea ferox, Pr. 

 Alsophila armata, Mart. PL Crt/pt. Bras. p. 72, t. 48, [jiot 

 Presl). Poly])odium aculeatum, Raddi, Jul. Bras. t. 41. Chno- 

 ophora aculeata, Kaulf. in Herb. Mart. — ^. costa beneath 

 with more copious bullate scales. — y. segments broader, costa 

 with numerous scales beneath. A. Sellowiana, Presl. 



Hab. Brazil, probably frequent, Raddi, Martius, Mr. Booy, Gardner, n. 

 27. Bahia, Sallzmann. British Guiana, frequent, C. S. Parker, Esq. 

 Surinam, Splityerher.— ^. Guiana. — y. S. Brazil, Sellou: — This appears to 

 be a very disiinct species, of which an excellent lifjure is given by Martius, 

 and another by Raddi. It should rank near to A. armata, Presl ; but it is 

 much less hairy, and the sei;ments are generally narrower: yet in these re- 

 spects the plant seems liable to vary, and n)y var. y. has been deemed de- 

 serving of specific distinction by our friend Dr. Klolzsch. On similar 

 grounds our present species of Alsophila might be increased four-fold. 



14. A. leiicolepis, INI art. ; "frond bipinnato-])artite slightly 

 strigilloso-hirsute on the nerves and nervules above beneath 

 with the scales and scalelets large, stipes aculeate, partial ra- 

 chis imarmed, pinna) linear-oblong acuminate, pinnules linear 

 acuminate pinnalifid, segments between the rounded sinuses 

 linear-lanceolate subfalcate sinuato-dentatc, sori 10 — 12 on 

 the segments." Mart. PL Crypt. Bras. p. 70, /. 4G. 



Hab. Brazil ; Province of Minas Geraes, Martius. Near Inficionado, 

 Gardner, n. 53"J!». Woods, Gongosoco, Gardner, n. 5331. — From the ge- 

 neral api)earance of Mr. Gardner's specimens, and the presence of the copi- 

 ous while scales beneath, I can have little hesitation in referring them hi- 

 ther ; but the segments of the pinnules are broader, and there are none or 

 but very few of those larger scales which form so conspicuous a feature in 

 INlartius' plant. The whole frond is very opaque (not glossy), and in Mr. 

 Gardner's m. 5331, there are still fewer of the large scales, and the veins 

 are frecjucntly simple as well as forked. 



