21. ADIANTUM, § EUADIANTUM. 125 



hollows in the lohes of the upper edge. — 111c. Sp. 2. p. 41. Ic. PL t. !JC5. A. 

 parvifuliuin, Fie. 



Hab. West Indian Islands. — The segments are so deciduous that they have entirely 

 fallen from nearly all the specimens in the Hookerian Herbarium, so that nothing 

 remains but a dense tuft of rigid stems with numerous slender glossy branches. In shape 

 the segments most resembie those of cunealum, but they are smaller and less lobed. 



60. A. vemtsfiim, Don ; st. 6-9 in. 1., slender, erect, wiry, naked, polished ; 

 fr. 6-12 in. 1., 4-8 in. br., deltoid, tri- or quadri[)innate ; pinnce erecto-patent, 

 the lower ones deltoid ; scgm. J in. across, cuneate at the base, the upper edge 

 irregularly rounded, sometimes broadly lobed, finely toothed; texture sub- 

 coriaceous ; rachis naked ; sori 1 to 3, large, roundish, placed in distinct hollows 

 of the upper edge. — Hk. Sp. 2. p. 40. t. 1)6. B. A. microphyllum, Roxh. 



Hab. Afghanistan and Himalayas up to 7-8,000 ft. — The more rigid texture, the small 

 numerous scarcely lobed segments and few large sori, will clearly distinguish this from 

 the preceding. 



51. A. moiiochlamys, Eaton ; st. 6-9 in. ]., wiry, erect, glossy, dark chesnut- 

 brown, naked ; fr. 6-12 in. 1., 4-6 in. br., ovate-deltoid, tripinnate ; pinnce rather 

 distant, rigid, erecto-patent ; segm. J in. br., cuneate at the base, the upper edge 

 rounded, slightly toothed ; texture coriaceous ; rachis naked ; sori single or very 

 rarely two, placed in a decided hollow of the upper edge. — Hk. 2nd Cent. F. t. 50. 

 A. Veitchii, Hancc, Ann. Sc. Nat. Ser. 4. v. 15. p. 238. 



Hab. Discovered by the American Exploring Expedition under Capts. Ringgold and 

 Rogers in Japan, and since gathered there by Mr. J. G. Veitch and by Mr. Wilford in 

 TsuB-Sima. — It comes near A. venustum, but seems to be truly distinct. 



****** Scandentes group. Stems scandent, several feet long, tri- or quadri- 

 pinnate. Sp. 52-53. 



52. A. digitatum, Presl ; st. 12-18 in. ]., erect, blackish, glossy, nearly naked ; 

 fr. 2-3 ft. 1., 1 ft. br., furnished with numerous distant spreading or erecto- 

 patent branches, which grow gradually'' shorter upwards, the lowest of which are 

 branched again, the pinnsc being 6-9 in. 1., 3-4 in. br. ; segm. |-1 in. each way, 

 varying from deflexed to cuneate at the base, the upper edge rounded, deeply cut 

 from the circumference towards the centre, and the lobes again less deeply cut, 

 the lower ones distinctly stalked ; texture papyraceo-herbaceous ; rachises naked, 

 glossy ; sori in lines along the edge of the lobes all round, except the base. — 

 Hk. Sp. 2. 2). 39. A. speciosum, Hk. Sp. 2. p. 45. t. 85. C. 



Hab. Brazil, Peru, Bolivia, and Ecuador. 



53. A. Feei, Moore ; st. 12-18 in. 1., strong, scandent, brownish-black, 

 tomentose ; fr. 1-2 ft. 1., 1 ft. or more br., tripinnate, the main and secondary 

 rachises zigzag, all the branches firm and spreading at a right angle ; lower 

 pinnai 6-9 in. 1., 3-4 in. br. ; pinnl. 1-2 in. 1., \ in. br., consisting of a terminal 

 segment and several distant stalked suborbicular-cuneate latei'al ones ; texture 

 subcoriaceous ; rachises densely brown-tomentose ; sori marginal, roundish or 

 transversely oblong, more than half a line deep. — -A. flexuosum, Hk. 2nd Cent. 

 t. 61. 



Hab. Mexico and Guatemala. 



******* Pedatum group. Fronds not pinnately branched, but dichotomously 

 forked, with numerous pinnce springing from the upper side of each of the two 

 branches. Sp. 54-56. 



54. A., pedatum, Linn. ; st. 6-12 in. 1., polished, dark chesnut-brown, glabrous ; 

 fr. dichotomous, with the main divisions flabellately branched ; central pinnae 



