120 TKICHOMANES. 



** Fronds piniiatijid, in T. Kaulfussii and T. brachypus almost bipinna- 

 tifid. {Sp. 20—28). 



20. T. intramarginale. Hook, et Grev. ; caudex creeping 

 somewhat tonientose, fi-ODcls small erect pinnatifid tapering 

 into a short stipes, the segments few hnear-oblong obtuse 

 erecto-patent slightly waved opaque with a slender intramar- 

 ginal vein, the apices retuse, involucres subcylindrical taper- 

 ing at the base sunk entirely in the apex of the segments, the 

 mouth spreading of 2 short lips, receptacles included (?). — 

 Hook, et Grev. Ic. Fit. t.21l. 



Hab. Ceylon, {Dr. Lindley). — Ps. small plant, 1— H inch high. I have 

 received this, and but few specimens, only from Dr. Lindley, gathered pro- 

 bal)ly by jNIacrae. The receptacles appear to be included, but they are per- 

 liaps broken away. 



21. T. Krausii, Hook, et Grev.; caudex creeping very to- 

 nientose, fronds small oblong sessile or stipitate obtuse at the 

 base or cuneate and attenuated deeply pinnatifid almost to the 

 racliis, the segments linear-oblong obtuse sinuate or some- 

 times again pinnatifid stellato-pilose in the sinuses, involucres 

 subcylindrical attenuated at the base much sunk in the frond 

 2-lipped, the lips large semiorbicnlar exserted generally mar- 

 gined with red. — Hook, et Grev. Ic. Fil. t. 149. 



Hab. Dominica, Dr. Kraus. St. Vincent, L. Guildinrj. Trinidad, Lock- 

 hart. Guiana, Leprieur. Berbice, Schomhurgk. Porto Rico, Bertero. 

 Guadeloupe, {Herb. Delessert et Heward). Jamaica, Purdie. — An elegant 

 species. Fronds 1 — 3 inches high : the larger specimens have sometimes 

 the segments again slightly and irregularly pinnatifid. 



22. T. quercifolium, Hook, et Grev. ; caudex creeping to- 

 nientose, fronds small obovate or oblong- cuneate tapering into 

 a very short downy stipes deeply pinnatifid, the segments 

 spreading oblong obtuse sinuated stellato- hirsute in the si- 

 nuses soriferous at the apex, involucres wholly exserted sub- 

 cylindrical attenuated at the base 2-lipped, lips large semi- 

 orbicular margined with purple. ^Hook. et Grev. Ic. Fil. t. 

 115. T. montanum, Hook. Ic. PL t. 187. 



Hab. Woods, Esracraldas, El Equador, at an elevation of 8500 feet above 

 the level of the sea, Jameson. — Distinguished from T. Krausii by the less 

 divided segments and wholly exserted involucres, still larger lips and pro- 

 truiled receptacles. 



23. T. sinuosum. Rich.; caudex creeping, fronds lanceolate 

 pinnatifid in a greater or less degree tapering into a stipes, 

 the segments ovate or oblong obtuse sinuato-lobate scarcely 

 again pinnatifid hairy at the margin and frequently on the 

 veins beneath, involucres entirely sunk in the lateral teeth or 

 lobes of the segments urceolate, the mouth spreading obscure- 



