C. AL?50PiirLA. 37 



especially in the small, very close-spaced and strongly pinnatifid lobes, of which the lowest 

 pairs are exactly square, adiiate on two sides with tlie co.sta and costule. 



28. A.I safjittifoUa, Ilk. ; iiiiarmed ?;/r. hard-coriaceous, bipinnate, glabrous ; 

 prim, pinncv 8-9 in. 1., H in. w., petiolate ; pinnl. 1 in. 1., 2-3 lines vv., all free to 

 the apex, shortly j)etiolate, ohlonjj, acute, crenato-serrate, sagittate at the liasc, 

 the lobes obtuse, the margin recurved ; veins indistinct ; sw2 (far advanced) often 

 mixed with paleaceous scales, copious on the forking of the veins, nearer the 

 costule than tiie margin ; recept. often 2-lobed. 



Hab. Trinidad ? (possibly the opposite coast of Venezuela), Cvvger. — A very peculi; r 

 species, and I regret my specimens are but imperfect. 



29. A. melanopns. Ilk. ; " caiid. .3-15 ft. higli, 1 ft. diam,, unarmed, ramen- 

 taceous " {S2>ruce) ; st. 3 ft. I., 1 in. thick, intense ebony-black (as well as the jirim. 

 racMses), slightly tuberculate and at the base paleaceous with very long, narrow 

 scales ; fr. coriaceo-membranaceous, glabrous ; prim. p'inncB 5 ft. 1., 1 2 pairs 3 ft., 

 or nearly so 1., 1 ft. w. in the broadest part ; pinnl. 6 in. 1., 12-14 lines w., distinctly 

 petiolate, from a broad base oblong, rather suddenly tapering into a serrated 

 acumen, deeply pinnatifid to nearly the costa ; lobes oblong, falcate, 3 lines wide, 

 obtuse, entire ; I'eins distinct, all forked, sori at the forking of each vein, much 

 nearer the costule than to tlie margin ; costce and costules quite free from scales and 

 mostly quite glabrous. — ? /3 caudex slender, subflexuose, 3 ft. high ; pinnl. sessile ; 

 lobes narrower and more acute. 



Hab. In woods, Chimborazo, alt. 3,000 ft.. Spruce, n. 5742. — /3 Montana de Canelos, 

 Spruce. — Habit and size of the pinnules very much as in Cyathea divergent (p. 17), but 

 clearly an AhophUa, with intensely ebeneous prim, and second, rachises. I am doubtful 

 about my var. /3, which may prove a distinct species. 



30. A. Chimhorazensis, Hk. ; " caiid. 15 ft, high, 4 in. diam., aculeate {Spruce) ; 

 St. very stout, 3-4 ft. 1., furfuraceo-pubescent, dirty brown, aculeated with very 

 sharp, strong spines, and paleaceous with large, dark, brown, glossy scales ;" fr. 

 9-10 ft. 1., ovato-lanceolate, subcoriaceous ("subscandent amongst neighbouring 

 branches") ; prim, pimue 2| ft. 1., b}' 1 ft. w. ; pinnl. rather distant, distinctly 

 petiolate, 1-lj in. w., horizontal, from a broad base oblong, acuminate, deeply 

 })innatifid near to the costa ; lobes oblong, obtuse, subfalcate, entire, the margins 

 a little recurved ; veins conspicuous, forked near the base ; son at the forks and 

 close to the costule ; main rachis thicker than a man's thumb, and as well as 

 the second, ones aculeate, having a dirty aspect from a clothing of furfuraceo- 

 jjubescence. 



Hab. Chimborazo, alt. 3,000-4,000 ft.. Spruce, n 5743. — This has still more the aspect 

 of Cyathea divcrgcns than our Als. melanopus ; but here, again, the sori are clearly those 

 of Alaophila. It is, however, the much more strongly aculeated of the two. 



31. A. conjngata. Spruce ; "caiid. 40 ft. high, 1 ft. diam., aculeate, destitute of 

 scales " (Spruce) ; .<f^. 3 ft. 1., 1 in. and more thick, prickly with short, stout, not very 

 sharp spines; jr. Oft. 1., ovato-lanceolate, coriaceous; prim, pnnnce 23 pairs, 

 " all exactly opposite, save at the very apex," 2-3 ft. 1. ; pinnl. alternate, quite 

 sessile, 4-5 in. 1., 6-7 in. w., pinnatifid nearly to the costa ; lobes linear, from a 

 broad base, acute, crenato-serrate at the slightly recurved margin ; sori rather 

 small, close to the costule, one to each serrature ; rachises (all) and costui and 

 costules rusty-pubescent and hairy. — Sp>ruce, mst. in Hb. nostr. 



Hab. Chimborazo, alt. 3,000-4,000 ft., Sjvrvce, n. 4745. — Very remarkable for the 

 exactly opposite prim, pinnje : the second, ones are alternate, 



32. A. Sprucei, Hk. ; " caud. none, reduced to a subglobose rhizome" (Spruce) ; 

 st, 4 ft. 1., stout, strongly aculeate at the base, clothed with ferruginous scales of 

 two kinds, long, very slender, dense, hair-like ones, and others large and lan- 

 ceolate; /r. subcoriaceous, glabrous, 4 ft. 1. ; prim, pinnce 12-14 in. 1. ; />i«n/. 



