l)A\ALI.Ii;.i: ODO.NTOSOKIA. i) ( 



(1) O. chinensis (l-.l •/. Sin. {Lindsaya tenuifolia (Sw.) Christ.) 

 Rliizoiiit' stout, (.rc'c|)iii;,', ilcnscly tilnillosc ; stipo stout, erect, polished, 

 linked, (hirk l)ro\vn, 1") to 'M) ciii. liij,'h ; froiul 'M) to 45 cm. Ion;,', half as 

 broail, ovate, quadriiiinnal itiil ; luwir [lituia- ovuti'laiiccolMtc, 10 to l."i (•m. 

 lonj:;, lialf as broad; ])imiiili's lanceolate, their sejjnieiits eiit down to the 

 raehis below with tootheil cuneate lobes, texture subcoriaceous, both 

 surfaces naked, the upper shining; sori terminal, usually solitary, often 

 rather broader than deep. 



Toii^'lon, l.oOO ni., and Kilad. 1.200 m.. Lohrr lil ; Sampaloc, Tayabas, 

 Warhurg 127G2, Nueva Kcija, Merrill 20.5. 

 Madagascar to Japan and Polynesia. 



(2) O. retusa (Cav.) J. Sni. Stipes strong, erect, not prickly or climb- 

 ing: frond tri|)iiiiiatifid ; lower pinna' .'?0 to 40 rin. long, 15 to 20 cm. broad: 

 pinnuh's laiu'colate-deltoid. tiie lower segments the same shape, 5 cm. long, 

 2 cm. broad, cut down to the racliis below, cunneate; texture herbaceous; 

 sori narrow, marginal, occupying the whole breadth of the lobes. 



Sampaloc. Tayabas, Warbiirfi 127t'>l ; Limutan. Morong, Loher 62; south- 

 ern Luzon. Iktrintda 15; H.-nguet. Elmer 5J)17, 0004, Topping 3.34, 289; 

 Da vac, Copeland 970 and 12t)0. 



To New Caledonia. 



(lOi DENNSTAEDTIA I'.ernliardi. 



Rhizome hair}', the stipes not articulate to it ; fronds at least bipin- 

 nate; sori marginal; indiisium united with the margin of the frond to 

 form a sharply differentiated globose receptacle. Rather large ferns, 

 superficially resembling Dicksonia, and formerly included under it. 



1. Rachises not prickly. 



2. Sori at bottom of sinuses. 



3. Lower surface tomentose-glandular (1) D. Smithii 



3. Frond glabrous (2) D.cuneata 



2. Sori on ends of teeth. 



3. Rhizome creeping, frond tripinnatifld (3) D. acabra 



1. Rachises prickly, rhizome scandent (4) D. scandens 



(li D. Smithii i Hk. i Christ. Frond tripinnate; lower pinna? 3 dm. 

 long, 1 dm. broad; pinnules linear-acuminate, their divisions distinct, 

 rather distant, narrow, acute, the lower ones 12 imn. long, 4 mm. broad, 

 slightly inciso-pinnatifid; rachises and under surfaces densely tomentose- 

 glandular; texture subcoriaceous; sori 2 to S to a segment; receptacle 

 subglobose, cupshaped, 0.5 mm. across. 



Luzon, Cuming; Rizal, Loher; Davao, Warburg 14134. DeVore and 

 Hoover 333, from Davao, is probably this species, but has the segments 

 of the pinnies obtuse. 



Java, Formosa. 



(2) D. cuneata (Hk.) Christ. Frond ample, subdeltoid, quadrii)in- 

 natifid; rachises stramineous, naked; pinna? lanceolate, 15 to 30 cm. long; 

 pinnules close, short-stalked, lanceolate, 1 cm. broad: segments oblong- 

 rhomboid, 2 to 4 mm. broad, inciso-pinnatifid, cuneate at base, sessile, 

 more cut away on lower side; texture moderately firm; both sides green, 



