﻿IS. OI^^CA-LPE, Blume. 



Sori globose, dorsal on a vein or veinlet, ai'ising from a small, scarcely 

 elevated receptacle. Indusium inferior, globose, sessile, at first entire and 

 enclosing the whole sorus, at length bursting irregularly at the summit. Cap- 

 sules numerous, nearly sessile. 



Rhizome erect. Stipes not articulate to the rhizome. Fronds much 

 divided; veins free. Sori usually 1 to each ultimate segment, on the lowest 

 acropetal veinlet. Hk. Bk., Syn. Fil., tab. I, fig. 7; Diels, in Engl. & Prantl, 

 Nat. Pfl.Fam. P, fig. 87, A— D. 



Tropical Asia. 



* ■>. aiipidioiflefS, Bl., Rac, Flor. Btz., I, 119; Bedd., Ferns S. 

 I., tab. CCLVII; Bau. & Hk., Gen. Fil., tab. IG; D. pseudo-caenopleris, Kze, 

 Bot. Zeit., d846, 457; — var. membranulosa, Ghrist. 



Rhizome erect, covered with desiccated stipes and brownish scales. Stipes 

 15—40 c.M. long, scaly. Fronds deltoid, 2S— 50 c.M. long, + as broad, 

 3 — 4-pinnate. Pinnae not quite opposite, deltoid-lanceolate, stalked, to 10 

 c.M. broad at the base. Ultimate segments obovate, 5—8 m.M. long, 2 — 3 

 m.M. broad, sessile, the base narrowed, + decurrent, the edge crenate or 

 toothed throughout or at the apex only. Texture submembranaceous ; surfaces 

 nearly naked, or sparsely chaffy on the veins; colour disposed to blacken 

 in drying. Sori solitary at the base of the ultimate segments; indusium firm. 



War. nieiiibraiiulosa: Fronds smaller; pinnae close; segments 

 contiguous; indusium weak. 



Trop. Asia. 



13. r>IF»LAZ:iOI»SIS, Chrlstensen. 



Sori dorsal, linear or oblong, running from near the costa to the first 

 areola; indusium sausage-shaped, fastened all round the receptacle, quite en- 

 closing the sorus when young, rupturing irregularly when the spores mature. 



