30 5. HEMITELIA, § AMPHICOSlirA. 



subulate, with a Lrown line down the centre, much broader upwtrds ; fr. ample, 

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

 bullate scales on the costse and costules beneath ; prim, pinnx IJ 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, G. Wright, n. 950.— Allied to A. platylepis, but very distinct. 



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

 2^ ft. i. ; rachises everywhere glabrous and smooth, stramineous- brown ; //•. 

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

 I| ft. 1., 4-6 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 ; 

 l(^es of the pinnse pinnatifid at the apex, quite entire, obtuse ; veins fasciculato- 

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

 margin ; invol. membranaceous, pale-brown, pe]?manent, irregularly yet often 

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



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

 and distinct species. 



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

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

 prim, pinna 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, pinnatifid 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, Khmze. 



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 lorms 

 Hr. muUijlora. 



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. 1., lower reduced ;^ pinnl. 3-4 in. 1., 

 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-jugate, 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. Uolumb. 1. t. 95. — /3, H. Hostmanni, 

 Hk. ; texture t\mm&c ; cofoar duller; ribs below slightly pilose ; segm. entire, cut 

 down to abroad wing ; inv. not ciliated; E.lc. Sp. 1. 31. Ic. t. 646. — y, H. Parkeri, 

 Hk. ; under surface densely pubescent ; segm. entire, cut down to a bjoad wing ; 

 inv. ciliated.— ia. Sp. 1. p. 32. Ic. t. 648.— Alsophila Weigeltii, Roam. 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 Brasiliensis, fase. 49. p. 315. Polypodivm paucifiorum, Hook. 

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

 of this. 



{Spe<i^es of Ceylon, Pacific, India. Sp. 16-19.) 



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



