246 41. SCOLOr^NDRIUM, § EUSCOLOrENDRIUM. 



irregular intramarginal line ; sori often l|-2 in. 1. — Hk. Sp, S.p. 271. Jc, t. 937. 

 Asjilenidictyon, J. Sm. 



Hab. Himalayas and Malayan Peninsula. — This has the same close relation to A. macro- 

 I'lliyllum that elegans has to fraxinifolmm. 



280. A. (Ilemi.) marginatum^ Linn. ; st. 2-3 ft. 1., strong, erect, woody, 

 sometimes \ in. tliick at the base ; fr. simply pinnate, 4-6 ft. 1. ; pinncB in 

 several opposite pairs, the lowest 1-2 ft. 1., 8-4 in. br., the edge entire, the base 

 often cordate ; texture papyraceo-herbaceous ; rachis naked, polished ; veins 

 anastomosing copiously in the outer third of the space between the midrib and 

 edge, bounded by a distinct intramarginal line ; sori long, linear, confined to the 

 free veins.— i/X'. SjJ. 3. p. 271. Fil. Ex. t. 63. 



Hab. Tropical America, from Cuba and Venezuela to Peru and Brazil. 



Gen. 39. Allantodia, Wall, {in part). 



Sori doi'sal, linear-oblong, attached to the primary veins. Invol. the same 

 shape as the sorus and quite enclosing it, bursting in an irregular line down to 

 the centre. A single simply pinnate species with thin ample pinnce, differing from, 

 Asplenium in the dehiscence of the involucre. Tab. IV. f. 39. 



1. A. Brunoniana, Wall. ; fr. often 2 ft, 1., 1 ft. br. ; pinnce 4t-Q in. 1., 1 in. br., 

 entii'e; vein.'s forked near the midrib, two rows of hexagonal areolae occupying 

 the outer half of the space between the midrib and the edge, bounded by an 

 intramarginal line ; sori confined to the anterior vein of the first fork. — Hk. Sjj. 

 3. ix 275. 



Hab. Himalayas (up to 6,000 ft.), Ceylon, Java, Tahiti. — Asplen. javanicum, Blume, 

 is the oldest name. 



Gen. 40. Actiniopteris, Link. 



Sori linear-elongated, submarginal. Invol. the same shape as the sorus, folded 

 over it, placed one on each side of the narrow segments of the frond opening 

 towards the midrib. A single species^ at once recognizable hy its flabellate hahit, 

 like a palm-tree [Chamcerops) in miniature, with fruit in character intermediate 

 between Aspleniese and PterideiE. Tab. IV. f. 40. 



1. A. radiata. Link ; st. densely tufted, 2-6 in. 1. ; fr. like a fan, 1-1| in. deep, 

 composed of numerous dichotomous segments which are rush-like in texture, 

 not more than \ lin. br., the veins few and subparallel with the indistinct 

 midrib, the segments of the fertile frond longer than those of the barren one. — 

 Ic. Fil. t. 975. — /3, A. australis. Link ; segm. fewer, longer, subulate at the point. 

 —Ic. Fil. t. 976. Hk. Sp. 3. p. 276. 



Hab. Throughout India, especially in the Peninsula, Ava, Ceylon, Arabia, Upper 

 Egypt, Abyssinia, Mascaren Isles, Zambesi-land, Macalisberg, Angola. For the type 

 Acrosiichum dicholomum, Forsk., is the oldest name. 



TkIBE 9. SCOLOPENDRIE^. 



Sori as in AsijlenieK, cxccjyt that the involucres ai'e arranged in pairs and open 

 towards each other. Gl*n. 41. 



Gen. 41. Scolopendrium, Sm. 



Characters of the tribe. Tab. IV. f. 41. 



§ Euscolopendrium. Veins free or anastomosing only casually. Sp. 1-4. 



1. S. vulgare, Sm. ; st. 4-8 in. 1., fibrillose below ; fr. 6-18 in, I., 1^-3 in. br., 

 ligulate-oljlong, entire, the base cordate ; texture subcoriaceous ; veins in groui)S 



