Puate 12. 
ADIANTUM (§ Evapianrum) ponyenytium, Willd. 
Many-leaved Adiantum. 
Aptantum (Euadiantum) polyphyllum ; stipes stout, one to two feet long, black- 
ebeneous, glossy, hairy below ; fronds two to three feet long, tripinnate, 
bright-green, firm-membranaceous, glossy; pinnae all petiolate, oblong- 
lanceolate, shortly acuminate; pinnules petiolulate, numerous, approximate, 
an inch and more long, horizontal, elliptical-oblong, almost forming a 
parallelogram, very obtuse, inferior margin and superior base truncate, 
superior margin arcuate, lobed and serrated, lobes soriferous ; veins copious, 
approximate, flabellato-dichotomous ; involucres reniformi-rotundate, large, 
convex, thick and hard, especially in the disk, rachises everywhere black- 
ebeneous and glossy. 
Apiantum polyphyllum. Willd. Sp. Pl. v. 5. p.154. H.B.K. Nov. Gen. Am. 
v. 1. p. 21 (not Kze.). Presi, Relig. Henk. v. 1. p. 62. Kl. in Linnea, ». 
18. p. 554. Hook. Sp. Fil. v. 2.9.49. Moore, Ind. Fil. p. 34. Metten. 
Fil. Hort. Lips. p. 48. 
ADIANTUM cardiochlena. Kze. in Linnea, v.17. p. 569, and in Bot. Zeit. v. 3. 
p. 281. Hook. Sp. Fil. v. 2. p. 51. t. 83 A. Feé, Gen. Fil. p. 114.411 B. 
Sf. 2. 
ADIANTUM patens. Kee. in Linnea, v. 23. p. 216 (fide Metten.). 
Has. Caracas, Bredemeyer (Willd.), Moritz, n. 59, Funck, n. 438, Linden, n. 
125. Tovar, Fendler, n. 80, Birschel. Trinidad, Aldridge, in Herd. 
J. Smith, Cruger. 
At the time the species of Adiantum were described in my 
‘Species Filicum,’ I had no means of knowing what was the 
A. polyphyllum of Willdenow ; and of 4. cardiochlena I had au- 
thentic specimens, so that I preferred then publishing the present 
plant under that name, which however proves identical with the 
former. It is a very fine species, and worthy of a place in every 
tropical fernery ; the stout intensely ebeneous-black stipites and 
rachises are well contrasted with the bright-green fronds, and 
the upper margin of the pinnules is fringed with a regular line 
of dark-brown kidney-shaped involucres. The species appears 
to be peculiar to Venezuela, the Caracas, and the adjacent island 
of Trinidad. 
Puate 12. Fig. 1. Very reduced outline figure of Adiantum polyphyllum. 
2. Portion of a frond,—zatural size. 4. Portion of a pinna, with two sori, one 
forced back to show the capsules :—magnified. 
MARCH Ist, 1861. 
