ASPLENIUM, § ATIIYRIUM. 231 



acuminate firm-mcmbranaccous dark j^rcen pinnafcd, pinn;c 

 numerous distant horizontal 1 foot long 1^ inch wide on 

 short petioles ol)h)ng-acuminate mostly falcate deeply pecti- 

 nato-pinnatifid rarely and only at the very base pinnate, 

 pinnules numerous -4 of an inch long more or less approxi- 

 mate often sul)falcate oblong obtuse coarsely serrated those 

 of the apex confluent into a serrated acumen, veins pin- 

 nated, veinlets always simple obliquely patent one to each 

 serrature, sori short oblong one to each vcinlet near the 

 costule, involucre firm subcoriaceous very convex dark 

 brown rarely and only at the very base diplazioid, rachis 

 stout brown terete. — Asplenium conchatum, Moore, Lid. Fil. 

 p. 49. Athyrium conchatum, Fee, Gen. Fil. on the plate 

 t. 17 C. /. 1 {not p. 189, ivhich is Aspl. achilleccfolium) . 

 Hypochlamys pectinata. Fee, Gen. Fil. p. 200. /. 17 G. f. 3. 

 Allantodia costalis, Desv. Mem. Soc. Linn. vi. p. 265. As- 

 plenium costale, Moore, Lid. Fil. p. 121 {not of Sw. and 

 Mettenius) . Diplazium brevisorum, Sm. in Cat. Cult. Ferns 

 {not his En. Fil. Philipp.). 



Hal). St. Domingo (Fee). Jamaica, Bancroft, March, n. 334, Wilson, n. 540, 

 Pnrdie, Alexander. — This is probably a rare species, as I have only received it 

 from Jamaica: and it is a very noble and well-marked one. It is the authority 

 for Fee's genus Hypochlamys, by mistake figured 1. c. under two different names 

 on the same plate. Those figures accurately represent the fructification, but 

 other botanists, as well as myself, have failed to see the characteristics of his 

 proposed new genus, Ilypochlaytiys. The involucres are, indeed, of a pecuUarly 

 firm and subcoriaceous texture, and are long persistent. The author describes 

 two other species from St. Domingo, namely //. Tussaci, Fee, and H. squamU' 

 losa : but I have seen no specimens, and have no means of knowing if they are 

 distinct from the present. He has also H. Sorzogonensis, from Luzon, " Aspl. 

 ambiguum, Schk.," a truly diplazioid Fern. 



{Involucres quite terete, very membranaceous, tender, and brittle, often bursting 

 irregularly. — Allantodia, Br. ; from aWas, aKKavros, a sausage.) 



'240. A. (Athyrium) umhrosum, J. Sm. ; caudex very stout 

 ascending scaly clothed with the creeping remains of old 

 stipites, stipes dirty-brown a foot and more long stout pale- 

 aceous with large dark brown broad lanceolate scales, frond 

 broad-ovate or subdeltoid membranaceous 3-5 feet long tri- 

 pinnate, primary pinnae distant G-10 inches long oblong- 

 ovate acuminate, secondary ones 2-3 inches long nearly 

 sessile approximate oblong-acuminate tertiary (or pinnules) 

 oblong-lanceolate acute sessile and more or less decurrent 

 scarcely \ an inch long inciso-pinnatifid segments acute or 



