42a. DORYOPTERIS. 347 



§ 1. DORYOPTERIDASTRUM. 



♦ (1) D. concolor, MCuhn, Gopel., Polypod. Philipp., 94; Pellaea 

 concolor, Bk., Christ, Farnkr. d. Erde, 157; P. geraniaefolia, Fie, Hk. Bk., 

 Sya. Pil., 146; Pleris geraniaefolia, Raddi, Rac, Flor. Btz., I,; 151; Hk., Icon. 

 PL, X, lab. GMXV; Bedd., Ferns S.I., tab. XXXVII; Pi. concolor, L. Sf F., 

 (oldest name). 



Rhizome short-creeping, clothed with short, lanceolate scales Stipes nu- 

 merous, subtufted, 5—20 c M. long, naked, erect, blackish, scaly at the base. 

 Fronds ovale-deltoid, 5—10 c.M. each way, cut down nearly or rarely quite 

 to the rachis into 3—5 pinnae on each side, the lowest pair the largest, 

 with the segments on the lower side produced and deeply lobed with linear- 

 oblong lobes, the segments of the fertile fronds not always deeply lobed. 

 Texture coriaceous; lateral veins once forked; rachis gpd costae dark-coloured 

 and polished. Sori in broad, marginal lines, 



Pantropical. 



$ 2. EUDORYOPTERIS. 



(2) D. lu<leiis, jr. Sm,. Copel., Polypod. Philipp., 94; Diels, in Engl. 

 & Prantl, Nat. Pfl.Fam., I", lig. 143, C; Pellaea. ludens, Prnnll, Engl. Jahrb., 

 Ill, 419; Pteris ludens. Wall., Hk. Bk., Syn. ¥il., 166; Litohrochiapedala, Bedd., 

 Ferns Br.I., I, tab. XXVI; L. ludens, Bedd., 1. c, tab. XXVII. 



Rhizome creeping, the scales adpressed, linear, brown, pale at the margin. 

 Stipes polished, blackish, naked, sometimes with a few scales and often with 

 dusky, subtomentose pubescence at the base. Barren fronds on stipes 7 — lu 

 c.M. long, triangular or ovate-lanceolate, deeply cordate or auriculate, sometimes 

 with 2 — 3 pairs of lobes, acuminate, with an entire or crisped margin. Tex- 

 ture coriaceous, rather flaccid;, costa polished, surfaces naked; veins bidden, 

 anastomosing copiously. Fertile fronds on stipes to 30 c.M. long, 10 — 20 c.M. 

 each way, cut down into 3 — 7 lanceolate or linear-lanceolate lobes,, the lowest 

 of which are deeply forked, with the "lower segment deflexed. Sori in narrow 

 marginal lines. 



Malacca, Philippines; Br. India. 



