204 38. ASPLENIUM, EUASPLENIUM. 



cate, the edge deeply crenate, the two sides unequal, the upper one with a 

 cordate auricle, the lower one obliquely truncate ; texture herbaceous ; lower 

 veins twice forked, oblique ; sori distant, not reaching either the midrib or edge. 

 HL Sp. 3. ^.118. t< 171. A. falx, Dew. 



Hab. Tropical America, from Mexico and the West Indies southward to Brazil and 

 Peru. This also comes very near A. cultrifolium in habit and texture. The best cha- 

 racter is the distinctly cordate base of the upper half of the pinna. 



72. A. Prionitis, Kunze ; st. tufted, 6-12 in. 1., strong, erect, greyish ;fr. 1-2 

 ft. 1., 6-9 in. br., with 8-12 stalked pinnce on each side, which are 4-6 in. 1., 

 1-lJ in. br., the point acute or acuminate, the edge sharply toothed throughout, 

 the upper side narrowed suddenly, and the lower obliquely truncate at the 

 base ; texture herbaceous ; racMs strong, erect, naked ; veins usually once 

 forked ; sori copious, linear, reaching nearly to the edge. Hk. Sp. 3. p. 102. 



Hab. Natal and Angola. A stronger plant than species 68 to 71, xvith larger pinnse. 



73. A. anisophyllum, Kunze ; st. tufted, 6-12 in. 1., firm, erect, scaly below ; 

 fr. 1-2 ft. 1., 6-9 in. br., oblong-lanceolate, with 10-16 subsessile almost hori- 

 zontal pinnce on each side, which are 3-5 in. 1., f -1 in. br., acuminated at the 

 point, crenate or crenato-dentate, the two sides unequal, the upper one nar- 

 rowed suddenly but not auricled, the lower one obliquely truncate at the base ; 

 texture herbaceous ; veins usually once forked ; sori distant, elliptical, not 

 reaching more than halfway from the edge to the margin. Hk. Sp. 3. p. 111. 

 t. 166. 



Hab. Cape Colony, northward to Bourbon, Zambesi Land, and the Cameroon Moun- 

 tains ; Galapagos Isles, Brazil, and Cuba. Allied to species 68 to 72, and best recognized 

 by its short regular sori, with large tumid involucres. A. sanguinolentum, Kze., Hk. Sp. 

 3. p. 114, is the American form of this species. The original plant of Kunze has nearly 

 entire pinnae. The Natal A. Boltoni, Hk. MSS. (figured Sp. Fil. t. 166), has them uni- 

 formly rather deeply inciso-crenate, and with this Mr. Randall puts A . discolor of Pappe 

 and Kawson as a more divided form. 



74. A. Wrightii, Eaton ; st. 1 ft. 1., tufted, stout, scaly below ; fr. 18-24 in. 1., 

 6-9 in. br., ovate-oblong, the upper half of the rachis with a narrow wing, 12-20 

 pinnce on each side, the lower ones 4-6 in. 1., f-1 in. br., lanceolate, subfalcate, 

 the point acuminate, the upper part sharply and distantly toothed, the lower 

 also cut down into roundish-spathulate lobes, which reach down nearly to the 

 rachis, the base unequal, the lower side only obliquely truncate ; texture herba- 

 ceous ; veins dichotomously forked in each lobe ; sori few, not reaching either 

 midrib or edge. Hk. Sp. 3. p. 114. t. 183. 



Hab. Japan ; gathered by Wright, and lately by Oldham. 



b. Texture of the frond coriaceous or subcoriaceous, colour pale-green, veins com- 

 paratively obscure. Sp. 75-98. 



b*. Group of A. marinum. Sori nearly equal, in two regular pinnate rows on 

 the two sides of the distinct midrib. Sp. 75-89. 



75. A. rhisophonm, Linn. ; st. tufted, firm, erect, 4-8 in. 1., naked, polished, 

 chesnut-brown ; fr. 1-2 ft. 1., 4-6 in. br., elongated, and taking root at the apex ; 

 pinnce 12-30 on each side, the lower ones spreading horizontally, subsessile, 1^-2 

 in. 1., about \ in. br., inciso-dentate throughout, the two sides unequal, the 

 upper one auricled, and narrowed at about a right angle, the lower one obliquely 

 cuneate ; texture herbaceous ; veins usually once forked ; sori not reaching either 

 the edge or midrib. Hk. Sp. 3. p. 122. t. 187. A. 



Hab. Tropical America, from Mexico and W. Indies southward to Peru, and gathered 

 also by Milne in the Solomon's Islands, S. Pacific. This is exceedingly variable in 

 cutting, and may be best recognized by its elongated proliferous rachis. We have 



