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 \\ ft. 1., broad 

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

 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, C. 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. 1. ; rachises everywhere glabrous and smooth, stramineous -brown ; fr. 

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

 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 pinnse pinnatifid at the apex, quite entire, obtuse ; veins fasciculate- 

 pinnate, free ; sori 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 8p." 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.) Moricandiana, Kze. mst. ; caud. " 7-8 ft. high ; " rachises 

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

 prim.pinnce 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. Recurrent 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. Cyathea Moricandi, " Kze. Fil. Fl. Braz. ined." 



Hab. Bahia, 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 of 

 H. 



15. H. (Amphic.) Guianensis, Hk. ; st. muricate or aculeate ; fr. coriaceo- 

 membranaceous, bi-tripinnate, glabrous or (beneath especially) subhispido-hirsute ; 

 main rachises deciduously subulato-paleaceous ; super, rachises distinctly 



winged ; 



pinnl. sessile or petiolate, 3-5 in. or more 1., ^-f in. br., oblong-lanceolate, ending 

 in an entire more or less elongated acumen ; lobes ovate, obtuse, entire ; veins 

 forked ; sori few on each lobe in the forking of the veins, mostly nearer the costa 

 than the margin ; invol. variable, rather lax, often 2-3-lobed (rarely ciliated), the 

 base often extending round the sorns. Hk. Sp. 1. p. 31, and Ic. PI. 648. H. Host- 

 manni, Hk. Sp. p. 31, and Ic. PI. t. 646. H. Servitensis, Karst. Fl. Columb. 

 t. 95. /3 Parkeri ; sori more copious, extending higher up the lobes. H. Parkeri, 

 Hk. Sp. 1. p. 32, and Ic. PI. t. 643. Alsophila oblonga?, Kl. in Hb. Hook. (Schomb. 

 n. 1125). 



Hab. Guiana ; Para, Brazil, Spruce, n. 612 and 72 ?, and Tarapota, E. Peru, n. 4249, 

 4331, 4323, 4656, 4712, 4715, and 4717, and Ecuador, n. 5741 ?. It is with reluctance, 

 and only after an examination of more perfect specimens, than I before possessed, that I 

 come to the conclusion that the above supposed species are slight varieties of one and the 

 same. Spruce's very fine and copious specimens have very strong spines on the stipes, 

 and very large, glossy, long-lanceolate scales, pale- coloured, but with a dark line down 

 the centre. The species appears to abound in Guiana, Caraccas, and the whole valley of 

 the Amazon, to Eastern Peru and Ecuador. 



(Species of Ceylon, Pacific, India. Sp. 16-10.) 

 16. II. (Amphic.) Walkcrcc, Hk. ; st. unarmed or slightly muricated ;fr. ample, 



