5. HEMITELIA, § AMPIIICOSMIA. 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 ; pinnce distant, tliin-membrana- 

 ceous, opaque, green above, suhpetiolate, 6-12 in. 1., 1-1 J in. br., from a cuneato- 

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

 incised, with rather acute, regular short lohes 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. PL t. 706. 



Hab. Caraccas, Linden, n. 663. — Alliedtoi7.sj?e«osa, 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 ; pinnce distant, petiolate, 1-1^ ft. 1., 1^ in. 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 pinnae. — Reichenbach, 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 ; pinnce sessile, 10-12 in. 1., 1-1 1 in. br., elongato-oblong, finely 

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

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

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



Hab. Mexico and Brazil. — My specimen of 5 pairs of pinnse, partially fertile, 

 has very much the appearance of //. (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.) capensis, Br. ; caud. 12-14 ft. high ; st. unarmed, scaly at 

 the base, and often bearing multifid anomalous pin7ice (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., ol3long-acumi- 

 nate, deeply pinnatifid, or again pinnate ; lobes lineai'-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 ; costoe 

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

 prominent. — Hk. Sp. 1. p. 36. Amphicosmia riparia, Gardn,inL.J.Bot.l. 

 t.l2 (^excellent). 



Hab. South Africa ; Brazil ; Java, Bl. in lib. nostr. 



{Sjjecies of S. America. Sp. 11-15.) 



11. H. {km'i^'hxc.') plati/lepis, 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, pinnce 12-14 in, 1. ; 

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

 acuminate ; rachis very hairy, slightl}^ winged ; ult. pinnl. 3-4 lines long, oblong, 

 the mai-gins 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. Eio Nigro, Brazil, Spruce, n. 8127. 



12. H. (Amphic.) ccM^"^?'*, Hk. ; 5^. bright stramineous, tuberculated, the base 

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



