30 5. HEMITELIA, AMPHICOSMIA. 



subulate, with a brown line down the centre, much broader upwards ; fr. ample, 

 membranaceous, bright-green, bipinnate, glabrous but mealy, with small, white, 

 bullate scales on the costse and costules beneath ; prim, pinnae 1 ft. 1., broad 

 ovato-oblong ; pinnl. approximate, 4-5 in. 1., 1 in. w., deeply nearly to the costule 

 pinnatifid ; lobes copious (lowest ones free), linear-oblong, obtuse, coarsely ser- 

 rated ; veins all forked ; sori (far advanced) small, at the forking of the veins, 

 mostly towards the costa, subtended by a broken invoL, most conspicuous at the 

 inferior side. " Hemitelia," Eat. 

 Hab. Cuba, 0. Wright, n. 950. Allied to A. platylepis, but very distinct. 



13. H. (Amphic.) Wilsoni, Hk. ; caud. 12-14 feet high, rather slender; at. 

 2J ft. i. ; rachises everywhere glabrous and smooth, stramineous - bro wn ; fr. 

 12 ft. 1., 4 ft. w., membranaceous, bright-green, glabrous, bipinnate ; prim. pinnae 

 l|ft. 1., 4-5 in. br., oblong, acuminate, deeply pinnatifid at the apex ; pinnl. 

 oblong-lanceolate, horizontal, acuminate, sessile and adnate, pinnatifid only in 

 the middle (not deeply), regularly alternate ; superior ones slightly decurrent ; 

 lobes of the pinnae pinnatifid at the apex, quite entire, obtuse ; veins fasciculato- 

 pinnate, free ; son small, forming a line equidistant between the costa and the 

 margin ; invol. membranaceous, pale-brown, permanent, irregularly yet often 

 2-lobed, and these lobes often spreading. " Hemitelia /Sp" Wils. in Herb, nostr. 



Hab. Mansfield, near Bath, Jamaica, alt. 1,000 ft., Wilson, n. 731. A very peculiar 

 and distinct species. 



14. H. (Amphic.) macrocarpa, Presl ; caud. " 7-8 ft. high ; " rachises every- 

 where unarmed, dark-brown ; fr. ample, glabrous, subcoriaceous, bipinnate ; 

 prim.. pinncB 12-14 in. and more 1., 6 in. br., petiolate, pinnate, pinnatifid above ; 

 pinnl. distant, sessile or subpetiolate, 3-4 in. 1., from a truncated or obliquely- 

 cuneate base, oblong, acuminate, pinnatitid about half-way to the costa, with 

 triangular-ovate, obtuse, or acute serrated lobes; super, pinnl. decurrent upon the 

 rachis ; veins free ; sori copious, forming a single series, generally on the forking 

 of a vein half-way between the margin and the costule ; invol. a small scale at 

 the base of the sorus. H. Moricandiana, Kunze. 



Hab. Babia, Blanchet, n. 3227 ; Brit. Guiana, Appun, n. 193. This does not appear 

 to be hitherto anywhere described ; yet it is perhaps too near some of the many forms 

 H. multiflora. 



15. H. multiflora, R. Br. ; fr. ample, tripinnatifid ; st. muricated, often cas- 

 taneous ; basal scales firm, lanceolate, dark-brown ; rachises grey, nearly naked 

 beneath; pinnce oblong-lanceolate, 1-1 J ft. L, lower reduced; pinnl. 3-4 in. L, 

 ligulate, 9-10 lin^ br., cut down to a narrow wing ; segm. blunt, 2-3 lin. br., entire 

 or inciso-crenate ; texture moderately firm ; upper surface bright-green, glabrous 

 except the ribs, lower paler subglabrous; veins 7-8-j ugate, forked ; sori small, 

 medial ; inv. dimidiate, glabrous, firm. H. guianensis, Hk. Sp. 1. p. 31. Ic. t. 

 648 and edit. 1. H. servitensis, Karst. Fl. Columb. 1. t. 95. /3, H. Ilostmanni, 

 Hk. ; texture thinner ; colour duller ; ribs below slightly pilose ; segm. entire, cut 

 down to a broad wing ; inv. not ciliated ; Rk. Pp. 1.31. Ic. t. 646. y, H. Parkeri, 

 Hk. ; under surface denselv pubescent ; segm. entire, cut down to a broad wing ; 

 inv. ciliated. Hk. Sp. 1. p. 32. Ic. t. 648. Alsophila Weigeltii, Roem. Presl Tent. 

 p. 61. A. strigosa, J. Sm. 



Hab. Guiana, Columbia, and the Amazon Valley. For a full account of the varieties 

 and synonyms see Flora Brasilienais, fasc. 49. p. 315. Polypodium pauciflorum, Hook. 

 Sp. 4. p. 242, Syn. edit. 1. p. 305, is founded upon a poor undeveloped specimen 

 of this. 



(Species of Ceylon, Pacific, India,. Sp. 16-19.) 



16. H. (Amphic.) Walkers, Hk.; st. unarmed or slightly muricated ; fr. ample, 



