702 74. DHTOSTACHYtlM. 



VaP. pilosum: Upper surface of the fertile pinnae covered with 

 brown, hairy, elliptical patches corresponding with the receptacles of the sori. 

 Capsules crowned with + 6 bristles. 



Malaya; — var. pilosum: Philippines. 



VS. IDXtYJMLOGLOSSXJJM, Pt-etl. 



Sori long, linear, 1 on each side, parallel to the costa, continuous or in- 

 terrupted. No indusium. 



Rhizome creeping. Stipes articulate to the rhizome. Fronds dimorphous, 

 simple, entire; veins anastomosing. Hk. Bk., Syn. Fil., tab. VI, fig. 58; 

 Diels, in Engl. & Prantl, Nat. Pfl.Fam., I*, fig. 160. 



Tropical and extra-tropical. 



|. Rhizome scales lanceolate, rhomboidal or orate, toothed, fimbriate or laci- 

 niate. 



•{•. 5ort nearer the midrib than the edge. (1) D. carnosum. 



^.•{•. Sori nearer the edge than the midrib, often submarginal. 



(2) D. heterophyllum. 

 i.S* Rhizome scales sulmlate, entire. 



X. Barren fronds under 4 e.M. long^ fertile fronds long-stalked. 



(3) D. rigidum. 

 X-x. Barren fronds + 8 c.M. long; fertile fronds not long-stalked. 



(4) D. novo-guineae. 



♦ (I) D. carnosum, a. Sm. (not Hk.), Hk. Bk , Syn. FQ., 397 

 (excl. var.); Bau. & Hk., Gen. FU., tab. LXXVIU, A; Bedd., Ferns Br.I., I, 

 tab. LV; Diels, in Engl. & Prantl, Nat. Pfl.Fam., I*, fig. 160; Nothochlaena 

 camosa. Wall., (oldest name). See Supplement 1, Appendix.: 



Rhizome creeping, long, filiform, clothed with peltate, lanceolate, toothed 

 scales. Barren fronds 5—6 c.M. long, on stipes 1 — 27, c.M. long, lance- 

 olate-oblong, rather obtuse or subacute. Texture coriaceous, thick and fleshy; 

 areolae with^ree veinlets. Fertile fronds linoar-spathulate, ± 5—8 c.M. long, 

 ± 6 m.M. broad, subacute, narrowed at the base, on stipes 3— 4'/^ c.M. 

 long. Sori linear, continuous, formii^ a line nearer the midrib than the 



