73. DKYNAHIA. § 5. THATEKU. 701 



tte apex narrowed suddenly into a long, linear-subulate, recurved, deciduous 

 point. Cup-leaves distant, 6 —10 c.M. long, induplicate or convolute, scarioso- 

 coriaceous, with the outer side subopaque, the inner glossy, the base cordate, 

 the apex rounded, the side edges slightly undulate and overlapping so as' to 

 form rather short, closed, subtubular organs quite enclosing distant, rooting por- 

 tions of the rhizome, not solitary on lateral branches of the rhizome. Fertile 

 fronds distant, similar to those of D. quercifolia, J. Sm.. but often much 

 smaller. Sori placed in 2 rows of 4 — 7 between the main veins of the lobes. 

 Borneo (Teysmann, Nos. 8577 & 8590; Teuscher). 



T'4. DlftYOSTA-CHYUM, J. Smith. 



Sori oblong or subquadrangular, close, confined to the contracted upper 

 pinnae, in 1 row on each side of the midribs. No indusium. 



Rhizome stout, creeping. Fronds sessile, articulate to the rhizome, pin- 

 nate or subpinnate ; lower pinnae broad, barren ; veins anastomosing copious- 

 ly; areolae with free included veinlets. Diels, in Engl. & Prantl, Nat. Pfl. 

 Fam., 1\ fig. 170, A— C. 



Malaya. 



« D. splendens, J^. Sm., Jpurn. of fiot., Ill, 599; Bau. k Hk., 

 Gen. Fil, tab. XCV; Diels, in Engl. & Prantl, Nat. PH.Fam., P, fig. 170, A— C; 

 Polypodium splendens, Hk., Hk. Bk., Syn. Fil., 367 ; Hk., Spec. Fil., V, 95 (not 

 V, 52); Drynaria splendens, Bedd., Ferns Br.I., H, tab, CCCXVI; — var. pilo- 

 sum; Dryost. pilosum, J. Sm., Kze, Farnkr., I, 139, tab. LXI. 



Rhizome stout, creeping, the scales linear-lanceolate, grey or brown. 

 Fronds + sessile, GO— 90 c.M. long, 20 — 30 c.M. or more broad, the lowest 

 part brown, rigid, narrow, + 4 c.M. broad, forming a shallowly lobed 

 wing, the central part sterile, cut down nearly or quite to the costa into 

 4 — 8 suberecto-patent, linear^oblong, acute or acuminate lobes or pinnae 10 — 

 20 c.M. long, 2^2 — 5 c.M. broad, dilated at the base; highest part fer- 

 tile, pinnate, the pinnae distant, ligulate, 10—20 c.M. long, + 1 c.M. broad. 

 Texture firmly herbaceous; surfaces naked; main veins- distinct; areolae co- 

 pious, with few free veinlets. Sori oblong or subquadrangular, in 1 row on 

 each side of the costae, filling up the whole under surface of the fertile pin- 

 nae except the .costa and the main veins. 



