120 21. ADIANTUM, EUADIANTUM. 



27. A.fulvum, Raoul; st. 6-9 in. 1., strong, erect, polished, dark chesnut-brown, 

 rough below, with strong hairs \fr. 9-12 in. 1., 6-8 in. br., deltoid in general out- 

 line, with a terminal pinna 4-6 in. 1., about 1^ in. br., and several erecto-patent 

 branches, the lower of which are branched again \pinnl. about f in. ]., \ in. deep, 

 dimidiate, the lower edge nearly straight, the upper almost parallel, with sharply- 

 toothed lobes like the oblique outer edge ; texture papyraceo-herbaceous ; rachis 

 glossy, but scabrous and rather hairy ; sori large, numerous, obversely reniform, 

 placed in small depressions round the upper and outer edge. Hk. Sp. 2. p. 62. 

 t. 85. A. 



Hab. New Zealand, Norfolk Island, N. S. Wales, and Fiji. Very variable in the 

 shape of its pinnules. It is much less compound than A . formosum, and the pinnules are 

 larger. 



28. A. pulchellum, Blume ; st. 6-12 in. 1., erect, naked, polished, nearly black ; 

 fr. a foot or more each way, with a terminal central pinna 6-9 in. 1., 1| in. br., 

 and a few large spreading lateral ones on each side, the lower ones branched again 

 with 2 to 4 erecto-patent branches ; segm. |-| in. 1., J- in. deep, dimidiate, the 

 lower line upcurved, the upper nearly straight, slightly toothed ; texture cori- 

 aceous ; rachis tomentose ; sori small, numerous, roundish, placed on the upper 

 edge. Hlc. Sp. 2. p. 38. A. Lobbianum, Hk. Sp. 2. p. 61. t. 86. C. 



Hab. Java, and gathered also by Milne in Aneiteum. This comes very near A. fulvum 

 in the shape, size, and texture of the segments, but is a larger plant with a more hairy 

 rachis. 



29. A. crenatum, Willd. ; st. 6-9 in. 1., polished, blackish, naked or nearly so ; 

 fr. with a terminal central pinna 6-9 in. 1., and several large erecto-patent lateral 

 ones on each side, the lowest of which are branched again ; segm. ^-f in. 1., in. 

 deep, dimidiate, the lower line upcurved, the upper nearly straight, slightly crenate ; 

 texture subcoriaceous ; rachis slightly tomentose ; sori numerous, round, placed on 

 the upper and sometimes the outer edge. A. Wilesianum, Hk. Sp. 2. p. 50. 

 t. 83. C. 



Hab. Mexico and West Indian Islands. This also comes very near A. tetraphyllum, 

 but the rachis is only very slightly tomentose, and the main stem is glossy and polished, 

 and the segments are perhaps more papyraceous in texture. A. politum, H. B. K., is 

 referred here by Sprengel. 



30. A. pectinatum, Kunze ; st. l-|-2 ft. 1., strong, erect, nearly black, scabrous ; 

 fr. 3-6 ft. 1., 2-3 ft. br., tri- or quadripinnate ; lower pinnae 12-18 in. ]., 6-9 in. br., 

 their lower branches with a long terminal pinnule and several erecto-patent 

 lateral ones, the lowest of which are sometimes branched again ; segm. % in. br., 

 less than | in. deep, dimidiate, the lower line straight, the upper slightly rounded, 

 the point not very blunt ; rachis tomentose ; surfaces naked ; sori suborbicular, 

 numerous, placed round the upper and outer edge. 



Hab. Brazil, Burchell, No. 7416 ; Eastern Peru, Spruce, 4781. A very fine plant, which 

 size and habit at once clearly characterize. A. velutinum and Lindeni, described by Mr. 

 Moore in Gard. Chron. 1866, p. 777, seem to be allied to this species. 



31. A. tetraphyllum, Willd. ; st. 6-32 in. L, strong, erect, tomentose ; fr. with 

 a long terminal pinna 6-9 in. 1., 1-1^ in. br., and numerous erecto-patent or 

 spreading lateral ones nearly as large on both sides, so that the frond is not 

 unfrequently half a yard long by nearly as much broad ; segm. ^-f in. br., J in. 

 deep, subdimidiate, the lower line straight or somewhat decurved, the upper 

 nearly parallel, finely toothed, the outer edge very oblique ; texture coriaceous ; 

 rachis and under surface tomentose ; sori interrupted, marginal, usually trans- 

 versely oblong or transversely reniform, placed round the upper and outer 

 edge. A. prionophvllum, H. B. K. Hk. Sp. 2. p. 21. A. fructuosum, Spr. 

 Hk. 2. p. 24. 



