532 57. ADIANTUM. § 1. EU-ADIA.MUM. d. CUNEATAK. 



oblique, sliallowly and hroadly lobed with 2^3 subeiUii'e lobes. Texture 

 membranaceous-herbaceous ; surfaces naked, opaque, often bluish. Sori obreui- 

 form, 1 — 2, rarely 3 to a leaflet, placed in orbicular hoUows along the outer 

 edge at the tops of the sinuses; indusium adpressed, persistent. 

 Celebes. 



* (23) A. concinnum, A. n. jr., Hk. Bk., Syn. Fil., 123. 

 Stipes 10—25 c.M. long, blackish, naked, polished. Fronds 30-50 c.M. 



long, 15 — 30 c.M. broad, ovate or ovate-deltoid, 3-pinnate. Branches many, 

 spreading, alternate, t he lo west jC — 1 B c.lVIMq ^ 3 —7 \ c.M. bro ad at the 

 basfi.^ Leaflets 6 — 20 m.M. across, broadly . flabellate, the outer edge irregularly 

 rounded, deeply lobed, the lobes again crenate, the base broadly cuneate, trun- 

 cate or subcordate. Texture papyraceo-herbaceous ; main rachis naked, glossy, 

 flexuose, overlapped by the large, adpressed lower leaflets; surfaces naked; 

 veins terminating in the angles of the sinuses between the ultimate serratures, 

 Sori numerous, obreniform, placed in round or semiorbicular hollows, the 

 sporangia springing from the veins and parenchyma. 

 In cultivation. — Orig. loc: Trop. America.. 



* (24) A. tinctlim, Moore, Hk. Bk., Syn. FU., 474; A. Wagneri, 

 .Metl., Hk. Bk., 1. c. 473; A. decorum, Moore, Gardn. Chron. 1869, 582. 



Stipes 10 — 20 c.M. long, erect, naked, blackish, glossy. Fronds + del- 

 toid, 15—45 c.M. long, 2 — 4-pinnate. Lower primary and secondai'y branches 

 erecto-pateat, stalked, deltoid. Terminal leaflets obliquely cuneale-flabellale, 

 the lateral ones subrbomboidal, ^j^- — I'/j c.M. long, the lower edge straight, 

 the inner one + touching the rachis or even wrapped over it, upper and 

 outer edge more or less distinctly lobed, the lubes blunt, lowest leaflets equi- 

 lateral, broadly flabellate, imbricated over the main rachis and adpressed to 

 it. Surfaces naked; texture papyraceous; rachis glossy, naked, slightly zigzag ; 

 veins terminating in the tops of the sinuses between the ultimate serratures. 

 Sori round; obr^miform, in _L circular hoUowe of tho uppor and outer cdger ; 

 capsules on and between the veins. — Intermediate between A. concinnum, 

 H. B. K. and A. cuoealum, L. ^ F. . 



In cultivation. — Orig. loc: Costa Rica, Peru. 



* (25) A. eiineatum, i. <f JP., Hk. Bk., Syn. Fil., 124; Hk. & 

 Grev., Ic. Fil., tab. XXX. 



Stipes 15 — 25 c.M. long, slender, naked, blackish, polished. Fronds 20 — 40 



