

DAVALLIEJE ODONTOSORIA. 57 



(1) O. chinensis (L.) J. Sm. (Lindsaya tenuifolia (Sw.) Christ.) 

 Rhizome stout, creeping, densely fibrillose; stipe stout, erect, polished, 

 naked, dark brown, 15 to 30 cm. high; frond 30 to 45 cm. long, half as 

 broad, ovate, quadripinnatifid ; lower pinnae ovate-lanceolate, 10 to 15 cm. 

 long, half as broad; pinnules lanceolate, their segments cut down to the 

 rachis below with toothed cuneate lobes, texture subcoriaceous, both 

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

 rather broader than deep. 



Tonglon, 1,500 m., and Filad, 1,200 m., Loher 61; Sampaloc, Tayabas, 

 Warburg 12762, Nueva Ecija, Merrill 203. 

 Madagascar to Japan and Polynesia. 



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

 ing; frond tripinnatifid; lower pinnae 30 to 40 cm. long, 15 to 20 cm. broad; 

 pinnules lanceolate-deltoid, the lower segments the same shape, 5 cm. long,. 

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

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



Sampaloc, Tayabas, Warburg 12761; Limutan, Morong, Loher 62; south- 

 ern Luzon, Baranda 15; Benguet, Elmer 5917, 6004, Topping 334, 289; 

 Davao, Copeland 970 and 1260. 



To New Caledonia. 



(19) DENNSTAEDTIA Bernhardi. 



Rhizome hairy, the stipes not articulate to it; fronds at least bipin- 

 nate; sori marginal; indusium 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 tripinnatifid (3) D. scabra 



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



(1) D. Smithii (Hk.) Christ. Frond tripinnate; lower pinnae 3 dm. 

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

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

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

 glandular; texture subcoriaceous; sori 2 to 8 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 pinules obtuse. 



Java, Formosa. 



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

 natifid; rachises stramineous, naked; pinnae 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, 



