ALSOPHILA. 48 



pinna." Martius, PL Crypt. Bras. p. 6U, ^ 41. Cyalhea 

 compta, Martius, olim. 



Hah. Brazil; Province of St. Paul, il/ar/tw^. Caraccas, Linden. Ta- 

 basco, Mexico, Linden, n. 1919. — II" I am not greatly mistaken, the above 

 two Alsopldlas of Linden from Caraccas and from Mexico, are identical 

 with A. compta, Mart. Tlicy exhibit the same form of pinnules, and the 

 veins are alike, except that the forking in our specimens takes place nearer 

 the margin than is represented in Martius' figure. 



18. A. eloiHjaia, lloolv. ; sharply aeiileated, glabrous ex- 

 cept on the rachis above, fronds bipinnate, pinnules lanceo- 

 late much elongated pinnatifid nearly to the rachis terminat- 

 ing in a long narrow serrated acumen, segments remote linear 

 rather acute rigid much falcated the margins recurved serrat- 

 ed, veins twice or thrice forked from near their base, sori 

 numerous covering the entire segments except at the apex, 

 bullate scales none or deciduous, receptacle very hairy. 



Hab. Columbia, probably the low plains, Hartweg, n. 1528. — This has 

 the appearance of being a distinct species, at any rale it is considerably dis- 

 similar from any that I am acquainted with. Tn the crowded fructifications 

 it resembles the A. armata : but the pinnules are very different. The sin- 

 gle pinna in my herbarium is nearly 3 feet long, rigid, coriaceous, downy or 

 strigillose on the rachis above, the rest quite glabrous, if wc except the long 

 hairs among the capsules. The pinnules are 6 — 8 inches in length, finely 

 acuminated, the segments nearly an inch long, narrow, much falcated, the 

 margins a good deal recurved, the whole underside, except at the apex, 

 crowded with the fulvous sori. 



19. A. Poeppigii, Ilook.; glabrous except the rachis above, 

 pinna? closely pinnated, pinnules elongated sessile oblong- 

 lanceolate much and suddenly acuminated pinnatifid nearly 

 to the costa, segments thick and coriaceous crowded narrow- 

 oblong falcate very obtuse densely clothed with sori to the 

 very apex almost to the extremity of the acuminations, the 

 margins slightly reflexed, bullate scales none, copious hairs 

 among the capsules. — A. villosa, Kze. Syn. PI. Crypt. Poep. 

 p. 99 [accord in y to an authentic apecimen of Poeppig in 

 Herb, nostr.), e.vcludiny the synonynts. 



Hab. Peru, 1829, Poepjmj in Herb, nostr. — This plant, although called 

 A. villma by Kunze in the Synopsis of S. American CryptogamiaB,has no- 

 thing to do with the Ci/athea villosa, H. B. K., which is adduced as a sy- 

 nonym. The species is more nearly allied to, though quite different from, 

 A. armata. My solitary specimen does not show whether the stij^es is acu- 

 leated or not. The rachis is glabrous, except above. Pinnules wholly gla- 

 brous above, the segments very close compact and regular, much broader 

 and stouter and blunter than in our A. ehmgatn, and not the smallest por- 

 tion of them is destitute of sori. The long apex is so .suddenly acuminated, 

 that the pinnules might be called caudate. 



20. A. villom^ (Kze .?) Presl ; stipes unarmed or only beset 

 with small dark elevated points, fronds tripinnatc glabrous 

 above clothed beneath (and on both sides in the young stale) 



