F1LICES. 69.3 



below the sinus: rhachis hairy, sub-4-gonal ; sori equidistant from the midrib and margin: 

 mdnsium reniform.— SI. t. 52./. ].— A. molle, Eat. in PI. Wr. Cub. 818.— 1^'-3' high j 

 segments 3"-5" long, 6"'-8'" broad.— Hab. Bahamas; Jamaica!, Macf., Pd., Wits.; 

 Dominica !, Imr., S. Vincent !, Guild., common : [Florida and Texas ! to Brazil ! ; Galapa- 

 gos ! ; S. Helena !]. 



<so9. A. deltoideum, Sta. Leaf pinnatisect, rigid, shortly hispidulous at the ribs be- 

 neath : segments oblong-lanceolate, bluutish or pointed, pinnalifid to the middle, sessile, 

 lower abruptly reduced, upwards auricled: lobes ovate-oblong, entire, obliquely pointed : 

 veinlets simple, lowest pair contiguous at the sinus with a plait between them : rhachis hairy, 

 obtusely sub-4-gonal ; sori nearer to the margin than the midrib : indusium small, reni- 

 iorm.— V-2' high ; segments 3" long, 8"'-10"' broad, lower 8"'-4'" long.— Hab. Jamaica !, 

 Macf., Saner., Wilt., in mountain-woods; [Cuba! to French islands!]. 



> 260. A. molle, Sw. Leaf pinnatisect, pubescent : segments lanceolate-acuminate, 

 pinnalifid to about the middle, sessile, lowest gradually or little decrescent : lobes oblong, 

 blunt or bluutish, entire : veinlets simple, lowest pair anastomosing below the sinus, forming 

 a vein, that runs into the sinus : rhachis hairy, obtusely sub-4-gonal : sori equidistant from the 

 roidrib and margin : indusium reniform-roundish. — Schk. Crypt, t. 34. b. — A. sclerophyllum, 

 Eat. in PI. Wr. Cub. 1001. 1005. 1006 (non Kze.). A. tetragonum, Hook., from S. Vin- 

 cent (non Metten.) — Variable, l'-4' high, not to be distinguished from A. patens, Sw., but 

 % the veins ; segments 3"-li"(-5") long, C'"-8'" broad.— Hab. Jamaica ! j S. Vincent 1, 

 Guild. ; [all tropical countries to New Mexico !, Japan, Madeira !, Algeria, the Cape ! and 

 Australia]. 



261. A. unitum, Sw. (non Sieb.). Leaf pinnatisect, rigid, glabrescent : segments 

 linear, shortly acuminate with a blunlish point, pinnatifid to one-third to half, sessile, 

 lowest as large : lobes ovate-deltoid, entire : veinlets simple, 1-2 lowest pairs anastomosing, 

 and forming an excui'rent vein below the sinus : rhachis glabrescent, 3-gonaI ; sori equi- 

 distant from the midrib and margin : indusium reniform-roundish. — Schk. Crypt. I. 33. 6. 

 sinistr. — Polypodium, L. A. gongylodes, Schk. : a form with blunt lobes. Nephrodium 

 propinquum, R. Br. N. paludosum, Liebm. ! — In habit approaching A. Serra, Sw., but 

 distinguished bv shorter, less acuminate segments, and anastomosing veins. 2'-4' high ; 

 segments 3"-4' 5 loug, 4"'-6"' broad.— Hab. Jamaica !, Pd., in morasses; [Guadeloupe!; 

 all tropical countries to Porto Alegre ; and the Cape]. 



262. A. brachyodon, Gr. Leaf pinnatisect, glabrescent .- segments oblong-lanceolate, 

 shortly acuminate, coarsely crenate-serrate to one-fourth, bearing a gland at the petiolulated 

 hase beneath, lowest as large : serratures trapezoid-oblique with a narrow sinus, entire : 

 veinlets simple, lowest anastomosing or separated, following pair contiguous at the sinus: 

 rhachis angular ; sori somewhat distant from the midrib : indusium small, cordate-reniform 

 or suppressed. — Seem. Panam. t. 49. — Nephrodium, Hook. Polypodium, Kze. Phego- 

 pteris Seemanni, J. Sm. — 3'-4' high ; segments 6"-8" long, 1 £" broad, serratures 3'" broad. 

 —Hab. Dominica, S. Vincent (Hook.) ; [Panama to Peru ! ; Galapagos]. 



263. A. serrulatum, Metten. " Leaf pinnatisect, glabrescent : segments lanceolate- 

 acuminate, coarsely crenate-serrate, obliquely rounded at the subsessile base, lowest half as 

 long: veinlets simple lowest anastomosing below, following pair at the sinus ; indusium 

 reniform."— £/. I. 43. f. 1.— Polypodium, Sw.— " 2"-3" high ; segments 5" long, 8'" broad 

 (Metten.). With this are to be compared : 1° A. Imrayanum (Nephrodium, Hook. t. 242. 

 A.), distinguished by approaching, free veinlets, and small, appressed serratures (having a 

 "rhachis semiterete on the back ") ; aud 2° Fendl. Venez. 474, combining the coarse ser- 

 ratures of Metteuius's diagnosis, a glabrous, obtusely 4-gonal rhachis, and the veinlets of 

 Hooker's figure: both approach Polyp, fiavopunctatum, Kze., but Jendler s rem is not 

 pellucid-dotted.— Hab. Jamaica (Sw.), iu momitain-woods ; Dominica (A. Imrayanum). 



264 A asplenioides Gr. Leaf pinnatisect, puberulons on the ribs beneath, some- 

 what rigid: segments oblong-linear, shortly acuminate, coarsely crenate truncate or sub- 

 cordate at the eaual, subsessile base, lowest little and gradually decrescent : vemlets simple, 



