5. HEMTTELIA, AMPHICOSMIA. 29 



agreed as to what is the true 0. speciosa of Humboldt. My specimens here characterized 

 sufficiently accord with the description in Willd. & H. B. K. 



7. H. (Amphic.) Lindeni, Hk. ; fr. pinnate ; pinnae distant, tliin-membrana- 

 ceous, opaque, green above, subpetiolate, 6-12 in. 1., 1-1^ in. br., from a cuneato- 

 truncate base, elongato-ensiform, finely acuminated, the margin pinnatifid or 

 incised, with rather acute, regular short lobes about 2 lines 1., the apex directed 

 upwards ; veins all pinnate, the branches free ; sori in 2-3 irregular lines or 

 series at the margin. Hk, Ic. PI. t. 706. 



Hab. Caraccas, Linden, n. 663. Allied to H. speciosa, but much more freely and acutely 

 lobed on the margins of the pinnae, and with a very different arrangement of the sori. 



8. H. (Amphic.) bella, Reichenb. f. ; " st. aculeated at the base ; " fr. ample, 

 subcoriaceous, glabrous, pinnated ; pinnae distant, petiolate, 1-1^ ft. 1., 1^ m > w - 

 from a subcuneate base, elongato-oblong, obtusely acuminated, entire at the 

 apex, the rest pinnatifid ^ way to the costa, with very blunt, broad, ovate, 

 spreading, subserrated lobes; veins copiously pinnated, all free; sori quite 

 marginal, and forming a continuous single line, following the sinuosities of the 

 lobes to the apex of the pini\3e.2teichenback,fil. in Mett. F. H. Lips. p. 110. 



Hab. Caraccas (Mett.}. Doubtless allied to our H. speciosa and Lindeni, but very 

 different in the coriaceous fronds and the deeply-lobed pinnatifid margins of the pinnae. 

 I only possess a garden specimen from Mettenius. 



9. H. (Amphic.) apiculata, Hk. ; fr. glabrous, pinnate, pale-green, subcoriaceo- 

 membranaceous ; pinnae sessile, 10-12 in. 1., 1-1^ in. br., elongato-oblong, finely 

 acuminate, deeply (beyond the middle) pinnatifid ; lobes f in. 1.. oblong, subfal- 

 cate, aristato-acurninate, subserrate ; sori small, forming a single line or series 

 much nearer the margin than the costule ; veins all pinnated and free. 



Hab. Mexico, Jurgensen, n. 273. My specimen of 5 pairs of pinnae, partially fertile, 

 has very much the appearance of H. (Euhemitelia) grandifolia; but the lobes are sub- 

 mucronate and pungent at the apex, and the veins are everywhere quite free. 



** Bi-tripinnate. Sp. 10-19. 



10. H. (Amphic.) Copensis, Br. ; caud. 12-14 ft. high ; st. unarmed, scaly at 

 the base, and often bearing multifid anomalous pinnae (which have been mistaken 

 for some Trichomanes) \fr. ample, submembranaceous, bi-tripinnate ; prim.pinnce 

 petiolate, ovato-oblong ; pinnl. subsessile, 2-3 in. 1., 6-8 lines w., oblong-acumi- 

 nate, deeply pinnatifid, or again pinnate ; lobes linear-oblong, acute, strongly 

 serrated ; veins simple, 1 to each serrature ; sori frequently solitary at the base 

 of the lobe or pinnl., rarely 3-4, with a lax, deciduous scale at the base ; costae 

 and costules beneath with scattered, deciduous, bullate scales ; recept. large, 

 prominent. Hk. Sp. 1. p. 36. Amphicosmia riparia, Gardn. in L. J. Bot. 1. 

 t. 12 (excellent}. 



Hab. South Africa ; Brazil ; Java, El. in Hb. nostr. 



(Species of /S. America. Sp. 11-15.) 



11. H. ( Amphic.) platylepis y Hk. ; st. stout, unarmed, clothed at the base with 

 very large, dark-brown, glossy scales, having a pale fringe at the margin ; fr. 

 ample, subcoriaceous, villous on both sides, tripinnate ; prim, pinnae 12-14 in. 1. ; 

 second, ones 2-3 in. 1., ^ in. w., again pinnated except at the very apex, oblong- 

 acuminate ; rachis very" hairy, slightly winged ; ult. pinnl. 3-4 lines long, oblong, 

 the margins recurved, inciso-serrate ; veins forked ; sori copious, 1 to each lobe 

 or serrature; invol. large, hemispherical, quite inferior. Hk. 2nd Cent. F. 

 t. 100. 



Hab. Kio Nigro, Brazil, Spruce, n. 3127. 



12. A. (Amphic.) calolepis, Ilk. ; st. bright stramineous, tuberculated, the base 

 clothed with copious, white, imbricated, satiny wales, 1 in. and more 1., below 



