210 38, ASPLEMTM §§ EUASAeKIUM. 



Hab. Guatemala, Salvin & Godman, 119.— -Very different from the rest of the group 

 in the shape of its pinnae. 



C. Group of A. resectum. Pinnae with from half to the whole of the lower side 

 cutaway. Sp. 100-104. 



100. A. formosmn, Willd. ; st. tnfted, very short, naked, polished, chesnut- 

 brown ; fr. 12-18 in. 1., 1 in. br., with 20-30 sessile horizontal pinnce on each 

 side, winch are ^ in. 1., 1^-2 lin. deej), the upper edge deeply cut, the point 

 rather ol)tuse, the lower edge truncate in a straight line, so that about half the 

 lower side is cut away ; texture herbaceous ; colour bright-green ; veins obscure, 

 simple or forked ; sori linear-oblong, short, obliq^ue, placed 1 to 4 on each side of 

 the midvih.—HL Sj). 3. p. 143. Fil. Ex. t. 16. 



Hab. Tropical America, from Cuba and Mexico southward to Brazil and Peru ; Ceylon 

 and the Neilgherries, Angola and Congo. — By its wiry polished rachis this approaches 

 the Trichomanes group. 



101. A. piilchclhim, Raddi ; st. tufted, 1-2 in. 1., slender, erect, naked, greenish ; 

 fr. 3-6 in. 1., 1-H in. br., with 12-18 pinnce in each side, which are ^-| in. 1., 

 2-3 lin. br., bluntish at the point, almost dimidiate, the upper edge inciso-crenate, 

 and narrowed suddenly at the base ; texture thinly herbaceous ; rachis slender, 

 green, compressed ; veins distant, once forked ; sori linear, oblique, falling short 

 of the edge, sometimes 1 or 2 almost parallel with the midrib on the lower side 

 of it. — Hk. Sp. 3. p. 129. A. Serronii, Glaziou et Fee. 



Hab. Tropical America, from Columbia to Peru and Eio Janeiro. — A. Otites, Link, is 

 a form with broad blunt scarcely-cut pinnae. Intermediate between firmuni and 

 resectum. 



102. A. resectum. Smith ; st. scattered, slender, naked, dark chesnut-brown, 

 polished, or grey and ojiaque, 4-8 in. 1. ; fr. 6-15 in. 1., 2-4 in. br., lanceolate- 

 oblong, with 10-30 subsessile horizontal pinnce on each side, which are 1-3 in. 1., 

 j-^ in. br., in shape almost dimidiate, two-thirds of the lower side being entirely 

 cut away, the point bluntish, all except the truncate part inciso-crenate, the 

 upper half at the base narrowed nearly at a right angle ; texture thinly her- 

 baceous ; rachis usually polished like the stem, sometimes green and opaque ; 

 veins once or twice forked ; sori not reaching either the midrib or edge. — Hk. 

 Sp. 3. p. 130. Hk. Sf Gr. Ic. t. 114. 



Hab. Japan and Himalayas (ascending to 8,000 ft.) southward to Ceylon, Oahu, and 

 Fiji ; Mauritius, Seychelles, Bourbon, Angola, and Guinea Coast. — Sometimes the lower 

 side of the pinna is entirely cut away. A. serrceforme, Mett., is a form with a straw- 

 coloured stem and abbreviated sori, and A. crisiatum,, Wall., a tall form with a strong 

 green stem and falcate deeply-toothed pinnae, cut away for about one-third of the lower 

 side only. 



103. A. Icetum, Swartz ; st. tufted, 4-6 in. 1., firm, erect, brownish, naked ; 

 fr. 6-12 in. 1., 3 in. br., with 16-24 sessile pinnce on each side, which are 1^ in. 1., 

 \ in. br., acute at the point, the edge irregularly inciso-crenate, the upper side 

 narrowed suddenly at the base, the lower truncate in a broad curve ; texture 

 herbaceous ; rachis naked, polished ; veins fine, distant, the lower ones twice 

 forked ; sori in two unequal rows falling short of both edge and midrib. — 

 Hk.Sp.^.p. 183. «. 173. 



Hab. Tropical America, from Mexico and Cuba southward to the Amazon. — Probably 

 this should be joined with the preceding, but the texture is usually firmer, and the pagina 

 is more developed on the lower side of the midrib, as in the cristatum form just 

 mentioned. 



104. A. keterocarpum, Wall. ; st. scattered, 4-0 in. 1., firm, erect, chesnut- 

 l)Vo\vn, polished ; /r. 6-15 in. 1., l|-2 in. br., with very numerous close-placed 

 dimidiate pinnce on each side, which are |-1 in. br., ^ in. deep, the lower edge 



