﻿42fl. DOBYOPTERIS. 347 



§ 1. DORYOPTERIDASTRUM. 



* (1) D. concolor, Kuhn, Copel., Polypod. Philipp., 94; Pellaea 

 co'icolor, Bk., Christ, Farnkr. d. Erde, 157; P. geraniaefolia, Fee, Hk. Bk., 

 Syn. Fil., 146; Pleris geraniaefolia, Raddi, Rac, Flor. Biz., I, 146; Hk., Icon. 

 PI., X, lab. CMXV; Bedd., Ferns S.I., tab. XXXVII; Pi. concolor, L. ^- 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-deUoid, 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 and costae dark-coloured 

 and polished. Sori in broad, marginal lines. 



Pantropical. 



% 2. EUOORYOPTERIS. 



(2) I>. lii(Ieii§>, <J. Sm. Copel., Polypod. Philipp., 94 ; Diets, in Engl. 

 & Prantl, Nat. Pfl.Fam., P, lig. 143, C; Pellaea iudens, Pranll, Engl. Jahrb., 

 Ill, 419; Pferis Iudens, Wall., Hk. Bk., Syn. Vi\., 166; Litohrocliiapedala, Bedd., 

 Ferns Br.L, I, tab. XXVI; L. Iudens, 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 hidden, 

 anastomosing copiously. Fertile fronds on stipes to 50 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. 



