28 5. IIEiriTELIA, § AMPHICOSMIA. 



apex pointing upwards ; sori minute, in 2 irreeular lines between each pair of 

 costules.— A'^^e. in B. Zeit. 1844, p. 296 ; Mett. Fil. Lechl p. 23. 



Hcab. Tropical America (Pacific side), Peru, Poeppig, n. 244 (pinnae exactly lanceolate) ; 

 Andes of Ecuador, Spruce, n. 5365 (pinnae 2 in. br., elliptical, lanceolate, "caudex none ") ; 

 Guatemala, Forest of Vera Paz, Salvin (pinn« narrow, oblong, 1 in. w.). — This appears 

 to be a very distinct species. My specimen under this name from Lechler (Peru, n. 2172), 

 quite corresponds with my other specimens from Spruce and Salvin. 



8. H. (Euhemit.) grandifoUa, Spr. ; arborescent ; st. aculeated ; fr. ample, sub- 

 coriaceous, pinnated ; pinncB sessile, 1-1^ ft. 1., elongato-oblong, acuminated, 1-2 

 in. br., ^ or | of the way to the costa pinnatifid ; lobes broad-oblong, obtuse, 

 serrated at the apex, slightly falcate ; sori on the free veins in a continued line, 

 intermediate between the costule and the margin, often nearer the latter. — Hk. 

 Sp. p. ^0. t. lA. A. Cnemidaria Kohautiana, Pr. C. speciosa, Pr. — /3, smaller 

 pinnae, sori submarginal. H. obtusa, Klfs. — Hk. Sp. \.p. 29. t. 14. B. 



Hab. W. Indies and N. Granada, Guiana ; abundant. Ecuador, Spi'uce, n. 536. — 

 Best distinguished from U. horrida by the smaller size, obtuse lobes, and non-marginal 

 sori. The anastomosing of the veins is very variable, present on some pinnse, absent on 

 others. 



4. H. (Euhemit.) Iwrrida, Br. ; arborescent ; st. strongly aculeated, decidu- 

 ously scaly, and often woolly near the base ; fr. very large, 7-10 ft. 1., pinnate ; 

 pinnae sessile, 1-2 ft. 1., broad oblong-lanceolate, deejjly pinnatifid, lowest segm. 

 sometimes free ; lobes 3 in. 1., oblong-lanceolate, acuminate, entire or lubato- 

 pinnatifid ; veins pinnated, subfascicled ; sori on the free veinlets, forming a 

 continued line just within the margin. ^-iT/t. Sp. 1. p. 30. t. 15, and Fil. Ex. t. 69. 

 H. horinda, et Hookeri, u4?/c^. — (i,Imrai/cma ; veins less branched, anastomosing 

 at the costa. H. Imrayana, Hk. /Sjy. l.p. 33, and Ic. PI. t. 669. 



Hab. W. Indies, New Grenada. — j8 Dominica, Peru, Lechler, Spruce ; Ecuador, 

 Jameson. — I am satisfied that my H. Imrayana is only a small form of H. horrida. 



** Bi-tripinnate. Sp. 5. 



6. H. {'EnV?:m\i.) petiolata, Hk. •,yo%ingfr. and base of the aculeated st. clothed 

 with large, glossy, castaneous scales, pale at the edge ; /;-. ample, bi-tripinnate, 

 pinnatifid at the apex ; prim, pinnce and pinnl. petiolated, tilt, ones from a trun- 

 cated and usually broad base, 2-6 in. 1., oblong-lanceolate, more or less acumi- 

 nate, entire, or variously and more or less deeply pinnatifid, with rounded or 

 broad-oblong lobes, entire or slightly lobulate ; pinnl. with free venation, the 

 deeply pinnatifid ones with the costal veins angularly anastomosing ; sori forming 

 a beautifully continuous border at the very margin, and following all the sinu- 

 osities of the lobes. — Hook. Sp. 1. jt?. 31. t. 16. 



Hab. Isthmus of Panama, Sinclair, Fendler, n. 471 and 421, Seemann. Isleof Gor- 

 gone, Barclay. — This, in venation, is intermediate between the present and the following 

 section (4 mph Icosmia) . 



§§ Amphicosmia. Veins all free. Tab. I. f. 5. a. Sp. 6-19. 



* Pinnate. Sp. 6-9. 



6. H. (Amphic.) speciosa, Hk. ; catid. 20-24 ft. high ; young fr. clothed with 

 glossy, castaneous scales which have a pale, very narrow fringe ; st. tuber- 

 culato-submuricate ; fr. ample, pinnate, very long, pinnatifid at the extremity ; 

 pinnce firm, membranaceous, satiny, 8-12 in. 1., \-\^ in. w., elongato-ensiform, 

 acuminate, entire or merely sinuato-sublobate ; veins all pinnated ; veinlets 

 free ; sori arranged in a sinuous continued chain or line just within the margin. 

 —Hk. aS>. l.p. 28. t. 13, and F. Ex. t. QQ. Cyathea, H. B. K. (not Cnemidaria 

 speciosa Pr., which is H. grandifoUa, and, as I believe, Grisebach's/f. speciosa). 

 H. integrifol., Kl. Kse. and others. 



Hab. New Grenada, Schlim, n. 842 ; Fendler, n, 46. — German botanists do not seem 



