FILICES. 697 



^f«""«f' '*"'' ''"^ *'*® hahit of a common Aspidinm. — 3'-4'high; secondary segments 

 6 -5" long, H'" broad.— Hab. Jamaica!, Hartw., P(/., mountains of Port Royal, West- 

 moreland. 



** Leaf pinnatisect with pinnatifid or senate segments : lower veinlets a;pproaehing, 

 contiguous, or anastomosing at or belowi the sinus, the other free, excurrent. 



283. P. tetragonum, i. leaf pinnatisect : segments lanceolate, pinnatifid to one- 

 half-one-third, slbortly petiolulate, lowest little or not decrescent : lobes oblong or ovate, 

 blunt or bliuitish, entire : veinlets simple, lowest pair anastomosing below the sinus, sending 

 a vein into the sinus, following pair contiguous at the sinus : rhachis i-gonal; sori serial : 

 series extending to the lowest veinlets.— Variable, distinguished from similar forms of 

 Jspidium raolle, Sw., by petiolulated segments, and from A. abbreviatum, Schrad. (non 

 Hook.), perhaps not sufficiently by the anastomosis of the veinlets. — 2'-5' hiah ; segments 

 9"-3" long, 12"'-6"' broad. 



a. Glabrescent (down simple) : segments 3"-6" long, pinnatifid to about the middle : Ibbea 

 spreading : veinlets 6-10-jugal. — St. t. 48. /. 3. Schk. Crypt, t. 18. b. 



;8. Plumieri, J. Sm. Puberulous with stellate down ; segments 6"-9" long, pinnatifid to 

 one-third : lobes falcate-blunt: veinlets lO-13-jngal, — Plum. Pit. t. 21. 



Hab. Jamaica!, Macf; Dominica I, /mr., S. Vincent !, ffwY;;?. ; [Cuba! and Mexico ! to 

 Brazil and Peru !]. 



284. P. luegalodus, Schk. Stout ; leaf pinnatisect, somewhat rigid, stellate-pubem- 

 lous : segments oblong-lanceolate, coarsely serrate to one-fourth, petioluldte, lowest as 

 large : serratures falcate, broadly ovate or oblong, bluntish or blunt, entire : veinlets simple, 

 several lower pairs anastomosing below the sinus, forming a vein that rims into the sinus : 

 rhachis puberulous, i-gonal ; sori serial : series extending often to the lowest veinlets. — • 

 Schk. Crypt, t. 19. «.- 4'-6' high ; segments 12"-8" long, 1^" broad: serratures 4"'-2"' 

 broad : veinlets 8-1 5-jugal. — Hab. Trinidad !, Or. ; [Cuba !, Wr. 1010, to French islands ! ; 

 Venezuela!]. 



285. P. crenatum, Sw. Leaf pinnatisect, slightly hispidulous : segments oblong- 

 lanceolate, crenate-serrate, subsessile : serratures trnncate-appressed : veinlets simple, about 

 W-i\i^a\,free and anastomosing without order : rhachis obtusely sub-4-gonal; sori distant, 

 chiefly on the lower veinlets. — Plum. Fil. t. 111. — P. raeuiscioides, Liebm. — 2-34' high; 

 segments 4-8-jugaI, longer 6" long, H" broad. — Hab. Jamaica !, Wils., March ; S. Vin- 

 cent !, O-uild. ; Trinidad !, Lockh. ; [Cuba ! and Mexico ! to Venezuela ! and Guiana !]. 



286. P. flavopunctatum^ Kaulf. Leaf pinnatisect, glabrescent, pellucid-dotted with 

 yellowish points : segments oblong-linear, acuminate, coarsely cuneaie-serrate, sessile at 

 the obligue, upward produced base, shortly deemTent, lower largest t veinlets distant, 

 3-6-Jugal, free, lowest second or third pair approaching at the sinus : rhachis pa- 

 leaceous, obtusely 4-gonal below ; sori distant, chiefly on the lower veinlets. — Plum . Fil. t. 

 38.— Aspidium rotuudatum, W.—S'-& high : lower segments 6"-10" long, 8"'-12"' broad. 

 — Hae. Jamaica (Hook.); llominica!, Imr., S. Vincent!, Guild.; [I'rench islands ! ; 

 Mexico to Guiana! aud Peru]. 



287. P. obliteratuia, Sw. I Leaf pinnatisect, glabrous : segments lanceolate, serrate, 

 or chiefly the uppermost pinnatifd-serrate, tapering at both subentire ends, lower petiolu- 

 tate, as large, superior adnate-decurrent : veinlets simple, 6-10-jugal, lower anastomosing 

 and forming a vein that runs into the sinus : rhachis puberulous, sub-3-gonal ; sori approxi- 

 mate to the middle, serial : series extending to the lower veinlets. — Approaching Aspidium 

 Imrayanum, Hook., but segments not upward produced at the base, aud with a long spe- 

 cial vein below the sinus,often unconnected with the appendage of the lowest anastomosis. 

 — 3'-4'high; segments 6-10-jugal, 6"-8" long, 1" broad. — Hab. Jamaica!, 5w., in moun- 

 tain-woods. 



*** Veins costate. 



288. P. blechnoides, Sw. Leaf pinnatisect : segments lanceolate, entire below the 

 serrate, narrowly acuminate apex : veins costate, approximate, simple or 2-partite, no 

 veinlets; sori dorsal toward the base of the veins or scattered.— ifoo^. Gen. t.42,B. 

 Hook firCT. /c. if. 232.— Alsophila, Sboi.. P. rosscatum, 7:^. (Amijhidesmiura, &,^o«). P. 



