474: ADIASTUJB. 



side segm. rhomboid, ^-f in. 1., lower border straight in a line with stalk, inner 

 touching rachis, outer distinctly lobed ; lower segm. equilateral, imbricated over 

 main rachis ; surfaces naked, bright-green ; sori round, placed in final lobes, 4-0 

 to a segment. Ktihn, Linn. 36. p. 77. A. decorum, Moore, Gard. Chron. 1809, 

 p. 582. 



Hab. Andes of Peru. Midway between continuum and cunealum. 



45*. A. tinctum, Moore ; st. 4-6 in. 1., black, glossy, naked ;fr. | ft. 1., deltoid, 

 bipinnate ; lower petioles 1 lin. 1. ; side pinnL rhomboid, 3-4 lin. 1., lower edge 

 straight, inner parallel with rachis, or just wrapped over it, outer shallowly 

 bluntly lobed ; lowest pinnl. equilateral, imbricated over main rachis ; surfaces 

 glabrous, bright-green tinged with red at first ; sori round, placed in final lobes. 

 Proc. Hort. Soc. 2. 543. 



Hab. Andes of Peru. Very near Wagneri, but less compound, with shorter pedicels. 



45*. A. rulellum, Moore ; st. 4-6 in. 1., black, glossy, naked ; fr. 4-6 in. 1., 

 deltoid, bipinnate ; lower petioles 1-1^ lin. 1. ; uppermost side pinnl. cuneate- 

 flabellate, nearly sessile, entire, lower rhomboid, 3 in. ]., with lower border in a 

 line with petiole, or rather decurved, inner produced over rachis, outer deeply 

 lobed, and lobes finely toothed ; end and lowest pinnl. deltoid in lower half, 

 in. br. ; texture membranous ; surfaces bright-green, glabrous, reddish when 

 young ; sori round, placed in the tips of the lobes. (rare?. Chron. 18G8, p. 805. 



Hab. Andes of Bolivia, Pearce. Very near the two preceding. 



45*. A. Moorei, Baker ; st. 6-8 in. 1., naked, black ; fr. deltoid, 6-9 in. 1., 2-3- 

 pinnate ; lower petioles 1-1^ lin. 1. ; side segm. ^-| in. 1., rhomboid, lower edge 

 deflexed from tip of pedicel, inner not imbricated over rachis, outer lobed halfway 

 down ; surfaces bright-green, glabrous ; sori round, placed in tip of lobes. 

 A. amabile, Moore, Gard. Chron. 1868, p. 1000. Florist, 1872, p. 279. (figure) 

 non Liebm. et Fourn. 



Hab. Andes of Peru, Pearce. 



46". A. convolutum, Fourn. ; fr. 1 ft. 1., deltoid, 4-pinnate ; racMses naked ; 

 pinnae long-stalked, lowest deltoid, compound, upper lanceolate, simply pinnate; 

 final pedicels erecto-patent, 1-2 lines ; final segm. subquadrangular, barren in. 

 br., lower border continuing the pedicel, or rather decurved, upper and outer 

 deeply bluntly lobed, inner upper corner imbricated over the rachis ; lowest and 

 end segment cuneate-flabellate ; sori 2-4 to a segment, H-2A lin. br. Fil. Mex. 

 p. 127. t. 6. 



Hab. Mexico, GheisbregU 406, Botteri 18. Well marked from all the other species of 

 the group by its fewer longer sori. 



46*. A. rigidulum, Mett. ; st. 4-6 in. 1., black, naked, like rachises ; fr. 6-8 

 in. 1., ovate, 4-pinnate ; segm. caducous, distinctly stalked, cuncate or rhomboid- 

 oblong or obovate, the barren ones denticulate ; texture chartaceous ; both sur- 

 faces glaucescent ; sori transversely oblong, 3-6 to a segment. Kuhn. Linn. 30. 

 p. 76. 



Hab. West Indies. Intermediate between tcnerum and fragile in the shape of the 

 segments. 



55. A. curvatum, var. A. Irasiliense, Raddi ; more robust ; rachises more 

 pubescent ; segm. shorter, broader, blunter. 



Hab. Brazil 



