43 ALSOFHILA. 



16. A. phalerata, Mart. ; " frond bipiimato-partite strigil- 

 lose on the veins above slightly downy beneath elsewhere 

 glabrous, stipes aculcolate at the base, pinnae in their circum- 

 scription narrow-oblong acuminate, common and partial ra- 

 chis unarmed strigillose above, pinnules linear acuminated 

 pinnatifid serrated at the apex, segments linear-oblong ob- 

 tuse somewhat seiTated towards the apex those towards the 

 summit crenate on their anterior edge (antice crenata), the 

 uppermost confluent into crenated pinnae, sori biseriatc in 

 the inferior part of the segments." Martins, PI. Crypt. Bras, 

 p. 67, t. 4-2. Cyathea phalerata, Martins, olim. — 13. costa with 

 a few small scattered scales beneath. 



Hab. Brazil : woods in the Province of Bahia, Mavtius. — ^. Ilhios, ]\Io- 

 ricand. Demerara and Guadeloupe, C. S. Parker, Esq. Dominica, Dr. 

 Imray, n. 110. — Our specimens from Moricand, Mr. Parker and Dr. Imray, 

 altogether agree with the figure and description of Marlins, except that 

 they have, generally, small scales beneath the pinnules, which appear wanting 

 in the original plant. The veins are often twice forked, the forking commen- 

 cing below the middle, so that the .sori are nearer the costa than the mar- 

 gin. In some of Dr. Imray's specimens the segments are more elongated, 

 narrower, and frequently more serrated. 



16. A.. infesta,lLze.; "frond bipinnate, pinnules imequal 

 at the base pinnatifid acuminate, segments oblong falcate ra- 

 ther obtuse, sori uniseriate approaching the margin, rachis 

 ])uberulous furrowed and paleaceous, stipes chaffy above acu- 

 leate below." Kze. Syn. PL Crypt. Poepp. p. 98. — /3. pin- 

 nules narrower and more scaly beneath. Alsophila fumata, 

 Klotzsch in Herb. Reg. Berol. 



Hab. Maynas, Peru, Poeppiy in Flerb. Jiostr. British Guiana, C. S. Par- 

 ker. Dominica, Dr. Imray, n. 1 19. — /3. South Brazil, Sellow. — A compa- 

 rison of my Guiana plant with an authentic specimen of A. infesta, Kze., 

 shows it to be the same. The pinnules are rather broad, membranaceous, 

 the segments ovato-oblong, obtuse ; the sori in a double line, occupying but 

 a small portion, comparatively, of the segment between the costa and mar- 

 gin, but placed nearer the latter. The veins are simple or forked towards 

 the margin ; scales few, almost obsolete. — Var. /3. may possibly prove a dif- 

 ferent species ; it is smaller, the pinnules narrower, the veins almost wholly 

 simple, and there are small ovate and acuminated bullate pale scales on the 

 costa beneath. On Dr. Imray's specimens the young sori exhibit a very 

 minute and imperfect involucre apparently consisting of small erect scales, 

 which become obsolete as the fruit advances to maturity. 



17. A. compta. Mart.; " frond bipinnate slightly hairy and 

 paleolate, general and partial rachis beneath sparingly acu- 

 leate slightly hairy above, pinnules linear acuminate some- 

 what triangular and entire at the a]5ex pinnatifid, segments 

 linear-oblong obtuse, sterile ones serrulate, upper pinnules 

 simple linear falcate the upj^ermost united into a pinnatifid 



