FILICBS. 667 



2"'-]i"' long.— Hab. Jamaica!, Wils., Fd., Wiles; [Cuba! to French islands !; Venezuela 1 

 to Brazil ! ; Galapagos !]. 



109. H. nigrescens, Rook. Prickly, glabrous; leaf Z-pinnatisect : tertiary seg- 

 ments oblong, bluntish, most equal, low pinnatipartite, superior pinnatifld, uppermost and 

 ultimate ones serrate : lobes and serratures bluntish : sori single at the base of their an- 

 terior margin : involucre minute, scarious, — Hook. Spec. t. 90. C. — Distant primary seg- 

 ments 1', secondary 3"-2", most tertiary 6'" long, ultimate 1'" broad, lowest 2'" long.— 

 Hab. Jamaica !, Wiles ; [Martinique ! ; Venezuela ! : I exclude Ciuning's East Indian 

 habitat]. 



110. H. V-iirAiexaVi, Hook. Unarmed, glandular-haity below ; leaf S-2-pinnatiseei : 

 nltimate segments oblong, blunt, pinnatifid teitk rounded lobes, decurrent into the mar- 

 gined rhachis, jippermost cuneate-entire ; sori single at the base of the anterior; margin of 

 the lobes : involucre half-round, herbaceous, scarious at the margin. — Hook. Speg. f. 91. S. 

 — Not to be distinguished from Polypodium ruguloswm. Lab., but by the specially trans- 

 formed, involucral appeadages, and probably passing into that widely ranging species {H. 

 nigulosa,, J. Sm.).— Ultimate segments 3'"-2"' long, 1'" broad.— Hab. Jamaica!, Fd., 

 Westmorel^d ; [New Granada]. 



16. CHEILA.NTHES, Sw. 



Sori round, distinct or confluent along the margin, inserted into the summit of all or 

 most free'veinlets, covered by reflexed, specially transformed appendages of the margin. — 

 Leaves divided, usually much so, 



§ 1 Sori approximate or confluent. 



111. C. micropbylla, 5w. Leaf i-pinnatisect, puberulous beneath or glabrescent: 

 secondary "segments serrate-pinnatifid, blunt, ultimate subentire : petiole terete, about as 

 long as the blade, rusty-puberulons chiefly on the upper side ; sori sliortly or interruptedly 

 Bonfiuent : involucre membranaceous. — -SI. t. 13. f. 2. Plum. Fil. t. 58. Hook. Spec. t. 

 98. A. — Adiantum, Sw. C. elongata, Eat. PI. Wr. — Leaf-blade 6"-12", primary segments 

 1"-14" long, most of the latter subequal ; longer secondary segments 4"'-3"' lorig, 2"'-l^"' 

 broad. — Hab. Jamaica!, fiariw., ^sVj., in mountain-woods ; S.Vincent!. Guild.; [Cuba! 

 to French islands ! ; Mexico ! to Peru ! ; Galapagos !]. 



The Jamaica habitat of C. marginata, Kth. (Hook. Spec. 3. p. 106), is erroneous, aU'Pur- 

 die's specimens proving to be from New Granada. 



§ 2. Sori rov/ndish, all distinct (Adiantopteris, Fee). 



112. C. radiata, lA. 5m. Slender, glabrous; leaf palmatisect : segments pinnatisect, 

 secondary horizontal, oblong, blunt, upward auricled at the truncate, shortly petiolulated base, 

 subentire, most equal : most veinlets simple ; sori distinct, lining the margin : involucre 

 half-round, raembi-anaceous. — Plmn. Fil. t. 100. Hooh. Spec. t. 91. A. — Adiantum, L. 

 Hypolepis, Hook. — Petiole black-shining, terete, 12"-4" long ; primary segments expanded 

 like 5-9 rays, middle longer 6"-3", exterior 3"-l" long : secondary ones 4'" long, 1"' 

 broad. — Hab. Jamaica!, Pd., Manchester; Dominica !, iiitr. ; [Cuba!, Haiti!, Siei. Mart. 

 398 ; Mexico ! to Peru ! and Brazil !]. 



113. C. pedata, J.. .Br. Slender, glabrous ; leaf tematisect -. 2 lateral divisions un- 

 equally 2-partite, with the lower and shorter segments pinnatisect, the superior and the del- 

 toid middle division 2-pinnatisect below, pinnatisect with pinnatipartite segments above ; 

 ultimate segments obliquely oblong, bluntish, subentire (except at the abruptly auricled upper 

 side of the cuneate, shortly petiolulated base), superior decrescent : most veinlets simple ; 

 sori distinct: involucre renifdrm, merabrauaoeous. — Hook. Spec. i. 92. J. — Hypolepis, 

 Hook.— Petiole of the preceding; leaf-blade 6"(-12") long and usually as broad : ultimate 

 inferior segments B"'-4"' long; 1'" broad above the spreading auricle. — Hab. Jamaica !, Pd. ,•• 

 [Veraguas]. 



2 X 



