APPENDIX. 29. LINDSAYA. 507 



§ 2. SYNAPHLEBIUM. 

 (32) Wj. clavallioidcs, ni.; Kze, Farnkr., I, tab. VII. 



(33&) li. siibalpina, r. A. ». K., in Bull. Btz., 1916, XXIII, 15. 



Rhizome creeping, naked (sparingly deciduously fibrillose?). Stipes 

 approximate, sometimes more remote, + 15 — 25 cm. long, more or less 

 obtusely quadrangular and grooved especially on the back and face, 

 stramineous or pale-dirty- fuscous, naked. Fronds lanceolate, + 22 — 80 

 cm. long by 4 — 5 cm. broad, simply pinnate, the apex acuminate, the 

 base slightly narrowed. Leaflets + 30—35 on each side below the ter- 

 minal one ; terminal leaflet lanceolate, acuminate, sparingly coarsely serrate, 

 deeply lobed at the cuneate base; lateral leaflets subhorizontal or the 

 higher more ascending; central leaflets largest, close or approximate, sub - 

 sessile, linear-oblong, to 272 cm. long by 7% mm. broad, the apex bluntly 

 rounded or obliquely truncate, the sides parallel or nearly so, the upper 

 and outer edge incised ^It^-^l^-^Siy down, the lobes obUque, truncate or 

 rotundate-subtruncate, the terminal and basal ones often much the broadest, 

 the inner side parallel to the rachis, the lower side straight or very 

 slightly up- or decurved. Texture firm-herbaceous; rachis acutely qua- 

 drangular, canahculate on the face and back, stramineous or pale-dirty- 

 brown, naked; surfaces naked. Sori subterminal on the lobes; indusium 

 narrow. — Barren fronds not seen, but the fertile leaflets with the oc- 

 casionally barren lower lobes and barren portions of fertile lower lobes 

 acutely dentiform or acutely serrate or toothed. — Resembles at first 

 sight a branch of L. davallioides Bl. but much larger. 



Sumatra. 



33, njJlMj^TA., Cavanilleg. 



§ 2. LEUCOSTEGIA. 



(21) H. Kingii, Diels. 



Omit this, it being referred to Davallodes. 



(22) H. viscidula, v. A. v. R. 



Omit this, it being referred to Davallodes. 



