VFAA.MA. 141 



riculata, Link. Kze. in Linncea, xxiii. p. 242. Cassebeera, 

 J. Sm. Allosorus, Pi'esl. 



Hab. South Africa, roclvv mountains al)oiit Cape Town, Clanwilliam flistricf , etc. 

 — A very distinct species, less liarsli and rigid than the Pellcea in general, with a 

 good deal of the habit of Cheilanthes Capensis. The forked venation is very dis- 

 tinctly seen when held up between the eye and the light. Mr. Brown correctly 

 notices (Prodr. Fl. Nov. IIoll. p. 154) that the "involucrum fornicatum margine 

 interiore inflexo soros includit, itaque et ob habitum sei)arari (a Pteride) debet." 

 This involucre is very well represented in Dr. Greville's excellent figure (Ic. Fil. 

 Rar. t. 116. f. 1). Our largest specimens are a fpot long; young ones have the 

 fronds very flaccid and subpellucid ; older ones with mature fructification more 

 rigid and opaque. 



14. P. Seemanni, Hook.; much tufted 4-6 inches high, 

 caudex short thick (not creeping) densely fibrous, fronds 

 ovato-lanceokate membranaceous opaque obsoletely pubes- 

 cent pale and subglaucous beneath bipinnate, pinnules sessile 

 ovate or subcordate obtuse upper ones confluent inferior ones 

 of the pinnce free sinuato-pinnatifid with few and very obtuse 

 lobes, veins sunk obsolete (except seen between the eye and 

 the light) several times forked approximate, veinlets parallel, 

 sori narrow, involucres entire, stipes short (1-3 inches) slen- 

 der pale brown a little scaly at the base, rachises herbaceous. 

 (Tab. CXVII. B.) 



Hab. Mazatlan, Mexico, Seemann, n. 144 7. — A very distinct species from any 

 known to me, with very much the habit and mode of growth, dense fibrous roots, 

 and thin submembranaceous tufted fronds of the Cape P. auriculata ; but the 

 fronds are broader, more compound, the pinnules larger, more confluent, the 

 stipes and rachis more herbaceous, the veins closer, more parallel, more frequently 

 forked ; the fronds are 0|)aque, and the veins only to be seen when the specimen 

 is held between the eye and the light. 



15. P. Skinneri, Hook.; a span and more high, caudex 

 . . . , fronds deltoideo-ovate acuminate bipinnate suljmem- 

 branaceous glabrous or very sparsely and minutely hairy 

 beneath veined, primary pinnee few distant petiolate, secon- 

 dary ones or pinnules sessile rhombeo-acuminate, upper ones 

 coadunate and entire, those of the lower pinnee sessile de- 

 current lobed or pinnatifid segments acute or acuminate, 

 veins obliquely parallel several times forked, sori continuous, 

 involucres narrow submembranaceous close-pressed, stipes 

 scalv only at the base, and the rachises stramineous glossy. 

 (Tab. CXVIII. B.) 



Hab. Guatemala, G. U.Skinne)', Esq. — Four specimens of this Fern, sent to me 

 by Mr. Skinner, are all that is known to me of this very distinct Fern, and I can- 

 not refer it lo any described species, nor point out any one to which it is closely 

 VOL. IT. II 



