APPENDIX. 22. DRTOPTERIS. 817 



lowest part, lobed towards the apex, the lobes decurrent, oblong, subacute, 

 ± 8 ■ m.M. broad, with the sinuses acute, toothed, the teeth decumbent. 

 Texture coriaceous; colour yellowish-green, rather glossy; veins pinnate and 

 2 — 3-furcate in the lobes. Sori numerous, minute, medial or submarginal; 

 indusium black, carnoso-coriaceous, soon convolute, persistent. 

 Balahac, Palawan, Sibuyan. 



(58a) D. dubia, Copet., Leafl., I, 235. 



Rhizome ascending, clothed with lanceolate, castaneous scales. Stipes 

 approximate, 10^-20 c.M. long, red-castaneous, clothed towards the frond 

 (like the rachis) with minute hairs and small, distant scales. Fronds lan- 

 ceolate-deltoid, to 50 c.M. long, to 20 c.M. broad, acuminate, 4-pinnatifld. 

 Pinnae opposite or the higher ones alternate, the lower deltoid, to 12 c.M. 

 long, to 10 c.M. broad. Ultimate divisions lanceolate, cut down nearly to 

 the costa into obtuse, broadly oblanceolate segments. Texture membrana- 

 ceous; surfaces nearly naked; veins simple. Sori terminal; indusium athy- 

 rioid, sometimes nephrodioid with a broad or nearly closed sinus, rarely as- 

 plenioid. — Judging by the sori this fern would be an Athyrium, but the 

 frond's form and the colour and texture of the indusium mark it as a rela- 

 tive of Dryopteris rhodolepis, C. Chr. (Copel.). 



Luzon. 



* (59) O. setigera, O. ir#«e. — Insert as synonyms: Lastraea flac- 

 cida, Bedd., Perns S.I., tab. IC; Cheilanthes setigera, BL, (oldest name). — 

 My vart pallida eoom g to b e the common form or even th e typo iteolf; — Omit 

 44 iB synonymcj ii which arc cynonymo of Phogoptorio omata. Fee. 



f- (61a) O . Backer i) m. A . » ■ K . , Bull . D 4 p — Igr . I . W . , 19^ 



XVIII, 8; — var. aspera, v. A. v. R., 1. c, XXI, 3; Polypodiumiuperum, 

 Zipp., MS. in Herb. Bog. ^^^^'^ 



Stipes and rachises pale-brown, the upper sidenjdsrgMent with a line of 

 fine, not very short, pale-coloured hairs. thg^^eSt provided throughout with 

 numerous squarrose, deciduous, narro^<-+Hiear-subulate, pale-brown, finely and 

 deciduously ciliate scales leaviBg-'the stipes and rachises rough by their per- 

 sistent bases. Prondsjjfce^ose of D. setigera, 0. Ktze, but the primary and 

 secondary segme»1<1ooser. Texture firm-herbaceous when dry ; tertiary rachises 

 narrowip-^finged, pubescent above and scaly beneath, as are the costae ; upper 

 ^ Bftttoo nearly nakod, lower hairy on tho oootulao and voino with whitioh 



FiLICES. B2 



