346 41. PELLAEA. 



§ 2. PTERIDELLA. 



* (4) P tiiuorensis, v. A. «. R. 



Rhizome short, the scales long, linear-subulate, brown, eroso-denticulale. 

 Stipes approximate, 12—20 c.M. long, blackish, polished, flbrilloso-tomentose 

 on the upper (inner) side, deciduously scaly at the base. Fronds lanceolate- 

 oblong, 15—25 c.M. long, 8—12 c.M. broad, simply pinnate. Pinnae + 10—15 

 on each side, stalked, ± spreading, + 1—1 V2 cM- broad, the lower ones 

 longer or smaller than the others, lanceolate, subacute, the edge recurved when 

 dry, crenate throughout when barren, the base rounded or slightly cordate. 

 Texture coriaceous; rachis and stalks of the pinnae blackish, polished,' tomen- 

 tose on the upper side ; surfaces naked ; midribs conspicuous, black in the lower 

 half; veins rather hidden. Sori on a marginal receptacle uniting the vein tips, 

 soon hiding the indusium. — Probably closely allied to the african P. Doniana, 

 Hk., (Spec. Fil., II, tab. GXXV, A). 



Timor (Forbes, No. 3918). 



43«. r!>OR,YOF»TEie,IS, J. Smith. 



Sori roundish or oblong, either solitary and terminal on the veins, but soon 

 running into a submarginal line, or linear and placed on a submarginal receptacle 

 uniting the vein tips. Indusium linear, continuous, consisting of the reflexed, 

 modified margin of the frond. 



Rhizome short, the scales costate. Stipes black or dark-coloured, polished, 

 not articulate to the rhizome, with a single, 2 — 4-archous vascular strand 

 {\/, Y' X)- Fronds simple or divided, if divided, the segments adnate or 

 joined, not articulate at the base; veins free or anaslomosing, the lips not or 

 hardly thickened. Diets, in Engl. & Prantl, Nat. Pfl.Fam., I*, fig. 143. 



Panlropical. 



Arrangement of the sections. 



§1. DORYOPTERIDASTRUM. Sori solitary and terminal on the veins, but soon 

 running into a submarginal line. Veins free, or anastomosing near or 

 towards the margin. Diels, 1. c, fig. 142, B (sub Pellaea). 



§ 2. EUDORYOPTERIS. Sori linear, on a submarginal receptacle uniting the vein 

 tips. Veins anastomosing copiously. Diels, 1. c, fig. 142, F (sub Pellaea). 



