FILICES. 679 



S-forked : petiole stoat ; sori confluent.— >S/. t. 45./. 2. P!um. Ml. 1. 144.— Acrosticham, 

 L. — 2'-4' high ; petiole shining-purple ; special segments 4"-3J'' long, 4"'-3"' hroad. — 

 Hab. Jamaica !, Marf., Pd., AL, on river-sides ; [Cuba 1 and Mexico to Peru I and 

 Brazil !]. 



** Leaf-segments pinnatipartite : petiole slender, 

 f Leaf yellovi- or white-powdery beneath, glabrous. 



180. Cr. tartarea, 2)e,S!i. iea/' chartaceous, white-powdery beneath, jj!»««fe«rf ; seg- 

 ments pinnatipartite, secondary subcontiguous, shortly dequrrent, spreading, ovate-oblong, 

 or ovate, bluntish, entiie, crenate, or lower crenate-pinnatifid : veins flabeUate-dichotomous ; 

 sori confluent. — Acrostichum, Sw. Hemionitis dealbata, W. — 1'-2' high; petiole black- 

 shining: blade 4" broad at the base. — Hab. Jamaica 1 ; Dominica !,/mr. ; [French islands I, 

 Mexico to Peru !]. 



181. G. ornithopteris, .ST;. Z?a^ rigid-chartaceous, white- (or yellowish-) powdery 

 beneath, Z-pinnaii-pinnatisect : segments usually produced into a narrow, bluntish, suben- 

 tire or less divided appendage, secondary distant, nearly horizontal, adnate, oblong, blunt, 

 entire or crenate, revolute at the margin, upward decrescent, lower usually pinnatipartite 

 with short, contiguous, tertiary segments : veins flabellate-dichotomous ; sori confluent. — 

 G. calomelauos, Bat. Fl. Wr. 777 (including a yellowish-coloured variety) ; Schlechtend. 

 Fl. Schied. and Melt. PI. Lechl. 2027. G. dealbato-calomelanos, FLegel ! {non G. distans, Lh.). 

 AUosorus farinosus, Kze. {Farnkr. t. 103) : a less divided form with a paler petiole {Fl. 

 Lechl. 2022).— 14'-4' high; petiole usually purple : blade 6"-12" broad at the base. — 

 Hab. Jamaica!, S. Vincent!; [Cuba! and Mexico! to Peru!]. 



182. G. calomelanoB, Kaulf. Leaf rigid-chartaceous, white- (or yellovt-) powdery 

 beneath, 2-pinnati-pinnatisect : segments acuminate, secondary shortly decurrent, spread- 

 ing, most serrate-pinnatifd with acute serratures or lobes, lanceolate or oi ate-oblong, lower 

 often pinnatipartite: veins flabellate-dichotomous ; sori confluent. — & <. 30./. 2. 53./. 1. 

 ■Flum. Fil.t. 4:0. Schk. Crypt, t. h. sup. — Acrostichum, i. A. ebeneum, X. G. Martensii, 

 Bory : the yellow-coloured variety {Wr. Cub. 975). — 1'-4' high; petiole black or purple j 

 blade 3"-8" broad at the base. — Hab. Jamaica I, Wils. ; [Cuba to French islands !, Sieb. 

 Mart. 236 ; Mexico ! to BrazU !J. 



183. G. chrysophylla, Kavlf. Leaf rigid-chartaceous, golden-yellow- (or white-) 

 powdery beneath, %-pinnati-pinnatiseet : segments bluntish at the tapering point, secondary ^ 

 subcontiguous, shortly decurrent, spreading, ovate or |Ovate-oblong, most serrate-pinnatifid 

 with blunt serratures or lobes, lower pinnatipartite : veins flabellate-dichotomous ; sori con- 

 fluent. — Plum. Ml. t. 44. — Acrostichum, Sw. G. peruviana, Deso. (Kse. Farnkr, t. 32) : 

 the white-coloureii variety. G. L'Herminieri, Kee. : a form with ovate-oblong segments and 

 less blunt lobes {Sieb. Mcurt. 237). — I'-li' high; petiole purple-shining: blade 8"-3" 

 broad at the base. — Hab. Jamaica {Kaulf) ; Dominica 1, Imr. ; [Haiti to French islands !, 

 Mexico to Brazil I and Peru I}. 



184. G. sulfurea, Lesv. Lecf membranaceous-chartaceous, pale-yeUow-powdery be- 

 neath, Z-pinnatisect : secondary segments decurrent, lowest pinnatipartite with few divisions, 

 ultimate obovate, cuneate at the base, palmatijid or dentate at the subtruncate summit, with 

 the teeth or lobes usually pointed : veins flabellate-dichotoraaus ; sori confluent. — Schk. 

 Crypt, t. i. dextr. — ^Acrostichum, 5'w. — l'-(l^'-6") high ; petiole purple or pale: blade 

 2" broad at the base. — Hab. Jamaica !, Fd., Al., Hartw., on wet, shady banks; [Cuba !]. 



++ Leaves devoid of powdery secretions beneath, glabrous, 



185. Gr. chserophylla, Less, ie^jf membranaceous, glabrous, S-pimialisect : tertiary 

 segments pinnatipartite-palmatifid, cuneate at the base, ultimate oblong, pointed or bluntish : 

 veins dichotomous, branches single in each ultimate segment or lobe ; sori usually forked, 

 with the branches diverging.— ZfooA. Orev. Ic. t. 45.— G. leptophylla, Eat. Fl. Wr. {non 

 Z>«TO.).— DeUcate, 3"-10'' high ; ultimate segments V"-J"' broad, the longer 1"'-14"' long, 

 — Hab. Jamaica !, Fd. ; [Cuba I to Buenos Ayres Q. 



