DAVALLIE.E — HUMATA. 51 



Mount Data, 2,250 ni., Lolicr ; Baguio, Topping 199 {?). 



Java, Ceylon. 



(Probably a mere variety of H. repens.) 



(0) H. Cumingii (Hook.). Rhizome creeping, scaly; stipe 10 cm. 

 high, both it and the rachis rather scaly; sterile frond about 3 cm. each 

 way, deltoid-cordate, cut down nearly to the rachis; upper pinnae blunt, 

 slightly toothed, the lower pair deeply pinnatifid below; texture coriaceous; 

 fertile frond 10 to 12 cm. long, 8 cm. broad, the same shape, but much 

 more divided; lowest pinnules deeply pinnatifid with sharply toothed 

 lobes; sori placed in the teeth of the segments. 



Samar, Cuminci 138. 



(7) H. botrychioides J. Sm. Rhizome wide-creeping, scaly; stipe 5 to 

 10 cm. high, scaly below; frond 6 to 20 cm. long, 5 to 10 cm. broad, 

 deltoid in general outline, decidedly dimorphous, the barren ones with a 

 narrowly-winged rachis; lower pinnae cut down nearly to the rachis, 

 with deep bluntly-toothed segments; fertile pinnae much more finely divided; 

 pinnules of the lower pinnae cut down to a narrow rachis with narrow 

 sliarply-toothed segments almost covered with sori. 



Tonglon, 2,000 m., Lohcr ; Baguio, Elmer 5843. 



Aneiteum and Fiji. 



This and the preceding three species are decidedly too near together. 

 A fern differing from H. botrychioides in being less divided grows on 

 Mount Apo, Mindanao {Copeland 1030). 



(8) H. falcinella (Presl). Rhizome wide-creeping, thickly beset with 

 stiff, spreading hairs, ferruginous, turning toward black; stipe 5 to 10 cm. 

 high, glabrous, as is the frond; fronds about 13 cm. high, 10 cm. broad, 

 deltoid, tri- or quadripinnatifid; main rachis slightly winged; lowest pinnae 

 inequilateral; pinnules oblong, cut down nearly to the rachis into segments 

 wliich are again deeply toothed, ultimate segments of the fertile frond 

 falcate-mucronate, of the sterile frond broader and not so sharp ; texture 

 subcoriaceous ; sori 2 to G to a lobe, placed at the bases of the teeth; 

 indusium thin. 



Leyte, Cuming 304; Gimogon River, Negros, Copeland 72; epiphytic in 

 forest. 



This fern has the aspect of Eudavallia and the paleae of Microlepia. 



(9) H. immersa (Wall.) Diels. Rhizome hypogaeous, wide creeping, 

 stout, fibrillosc; stipe 10 to 20 cm. high, erect; frond 30 to 45 cm. long, 

 15 to 25 cm. broad, deltoid, tripinnate; lowest pinnules lanceolate-deltoid, 

 5 to 8 cm. long, with broad segments, which are obliquely truncate at 

 the base below, and roundly lobed, with the lobes again crenate above; 

 te.xture herbaceous; sori large (2 mm. broad), 1 to 6 to a segment, oblique. 



Tonglon, 2,250 m., Loher, a large form; Baguio, Topping 246, 256, 304; 

 Elmer 5908. :Mount Apo, ^Mindanao, DeVore and Hoover 322 ( ?). 

 India and Java. 



(10) H. hymenophylloides (Bl.) (Davallia a/finis Hook.). Rhizome 

 thick, densely clothed with sharp-pointed ferrugineous scales; stipe 10 to 

 25 cm. high, erect, strong; frond 30 to 60 cm. long, 15 to 30 cm. broad, 



deltoid-lanceolate, tri- or quadripinnate; lower pinnules with oblong 



