18 ADIANTUM. 



rulentum, I venliive to reduce Presl's A. Kunzeaitum to a synonyiii •» this 

 place. — A. mkrophi/llum, Kaulf. and Kze. in Herb, nostr., Irom Cuba 

 also (Poe;)^/^), much resembles small specimens of the present plant; but the 

 stipes and rachis are truly mnricated. — The figure in Sluane of ihe A. ser- 

 rulatum of Swarlz, Jam" 2, t. 37, f. 2, agrees with the simply pinnated 

 forms of this species. 



35. A.senuIatiu/i,L.; "fronds pinnate or bipinnate, pinnae 

 oblong-lanceolate dimidiate truncate at the base serrulate, 

 npper margin bearing the sori, stipes glabrous.'" — Willd. — 

 Linn. Sp. PL p. 1557. Sw. Sijn. Fil. p. 122. FL Ind. Occ. 

 iii. p. 1709. Willd. Sp. PL v. p. 436. Sloane, Jam. i. t. 

 35,y. 2 [frond simplt/ pinnate). 



Hab. Jamaica, Swartz. — I quote the synonyms, as I find them in Swartz 

 and Willdenow. Plukenet's figure may be anything. Linnaeus only 

 refers to Sloane, and that is really a good representation of an unbranched 

 state of ^. pulverulentum. Presl does not notice this species. 



36. A. villosum, L. ; frond large (1—2 ft.) bipinnate, ulti- 

 mate pinnae longest, pinnules nearly sessile approximate 

 or crowded oblong-ovate or ovate-lanceolate subcoriaceous 

 glossy blacliish green obtuse or acuminate the lower margin 

 dimidiate upper base truncate parallel with and close to the 

 rachis, ultimate pinnule larger than the rest rhombeo-acumi- 

 nate, sori continuous generally occupying the whole margin 

 except the lower dimidiate portion, rachis and stipes rough 

 with chaffy brown hairs. — Willd. Sp. PL v. p. 444. Swarts, 

 Si/n. Fil. p. 124. Schk. Fil. lab. 120.-/3. sori very broad with 

 the copious capsules. 



Hab. West Indian Islands, Trinidad, Jamaica, St. Vincent, Cuba, New 

 Grenada, and Guiana. — ^. Trinidad, Lockhart. — The figure of Schkuhr 

 above quoted is a faithful resemblance of a rather luxuriant state of this 

 plant ; but more frequently the pinnules exhibit the form of what may be 

 called an oblique parallelogram, and are then generally more crowded. I 

 do not find that this is an inhabitant of Brazil or anywhere south of the 

 line. Sloane's figure. Jam. vol. ii. t. 37, /. 2, is not a bad representation 

 of a broad pinnated state of A. villosum, although quoted by Swartz and 

 Willdenow for A.falcatum. From French Gu'iana {Le Pricur) 1 possess 

 specimens with the fronds 2 — 3 ft. long, of a more membranaceous texture, 

 the pinnules closer, the ultimate ones very small, the fructification often 

 confined to the upper margin, in these latter respects seeming to pass into 

 A. pulverulentum. There are indeed, I (ear, many intermediate states. My 

 specimen of Poeppig from Cuba (Kze. in Linnaa, ix. p. 79) marked A. 

 villosum., L. by Kunze, is clearly not the true plant, but A. trianc/ulatnm, 

 Kaulf. 



37. A. varium, H. R. K. ; " fronds pinnate and bipinnate, 

 pinnaj trapezoideo-oblong acuminate sharply serrated subpe- 

 tiolate glabrous, rachis hirsute with piliform scales, sori linear 

 continuous." — H.B.K. Nov. Gen. Am. i. p. 16, and vii. t. 



