254 ASPLENIUM, § EUDIPLAZIUM. 



Hab. Near Monte Verde, Eastern Cuba, C. Wright, n. 1032.-1 find no species 

 either among Euasplenium or Diplazium which will accord with this, and the few 

 specimens I do possess are very variable, as may be seen from our figures where 

 tlie two extremes are represented. 



279. A. (Eudiplazium) costale, Sw. ; caudex (in a small 

 specimen a foot long brown scaly at the base), stipes stout 

 sulfate, frond ample pinnate pinnatifid at the apex coriaceo- 

 membranaceous, pinnae petiolate remote G-14 inches long 

 3-7 inches broad from a truncated base ovate or oblong 

 acuminate more or less deeply pinnatifid rarely at the base 

 again pinnate with sessile obtuse pinnules, segments 1-3-4 

 inches long obtuse or generally in the larger and longer 

 segments acute and even finely acuminate generally a 

 little falcate especially at the apex which has an upward 

 curvature entire at the margins or more or less serrated, veins 

 in the undivided pinna3 or segments obliquely patent with 

 regard to the costa or costule simple or once or twice 

 forked the veinlets parallel not spreading superior veinlet 

 in the entire pinn£e generally only, in the segments fre- 

 quently all, soriferous, sori approximate to the costoe linear 

 elongated asplenioid or diplazioid, involucres half or three- 

 quarters of an inch long or more, main rachis above and the 

 costae and costules beneath deciduously chaffy and sometimes 

 glanduloso-villous. — Sw. Syn. Fit. p. 82 and 276. Willd. 

 Sp. PL V. p. 339. Metten. Asplen. p. 186. Diplazium, Pr. 

 Tent. Pterid. p. 114. Moore. Aspl. costatum, Poir. Aspl. 

 macrophyllum, Metten. Fit. Chil. p. 16, not Siv. Diplazium, 

 Desv. Pr. Tent. Pterid. p. 114. t. S.f. 14. Aspl. Desvauxii, 

 Metten. Asplen. p. ISl. t. ^. f. 4. 



Hab. Jamaica, Swarlz, JFilson. New Granada, Linden, n. 1035 and 535._ 

 Triana, iu 28. Antioqiiia, Jervine, Purdie. Ecuador, Forest of Archedona, 

 Andes of Quito, Jameson, J. P. Couihony {e.c Herb. D. C. Eaton). Peru, Pwpjng ; 

 St. Gavan, Lechler, n. 2158; Tarapota, Eastern Peru, R. Spruce, n. 433G (some 

 of the pinnaj are 7 inches broad, and the segments 3A inches long, l^ wide, 

 sinuses 3 inches deep, the petiole an inch long), n. 4339, 4684, and 4G85. — It is 

 only by means of a series of specimens from Jamaica as well as from the con- 

 tinent of S. America, that I am able to satisfy myself that Aspl. costale of Svvartz 

 and J. DesvaK.rii of Mettenius are one and the same plant, so very variable is 

 the form of the pinna;. A specimen of Mr. Spruce, marked n. 4339, is par- 

 ticularly instructive. It is small but perfect, young, yet l)earing sori, the frond 15 

 inches long, 9 broad, ovate, acuminate, pinnated below with five acuminated pinnae, 

 above i)innatifid, the segments gradually smaller and more obtuse — in short, 

 a counterpart of what many of the pinna: are on the larger fronds, which latter 

 probably attain a length of 3-4 feet or more. Often many of the upper pinna; 

 gradually become more entire. Some of the fronds have a nearer resemblance to 

 Plumier's figure of A. striatum, L., than what is almost universally considered 



