46 Ferns of British India and Ceylon. 



the top ; lower pinnse 2-3 inches long, erect-patent, ovate or lan- 

 ceolate-rhomboidal cut down the rachis ; pinnules deeply pinnatifid 

 with deeply toothed or pinnatifid linear lobes, texture subcoriaceous, 

 colour dark green, nearly black when dry, nearly naked, often slightly 

 crisped ; sori 2-16 to a pinnule, small axillary, the tube more or less 

 exserted, the mouth slightly dilated. Hook. Syn. Fil. p. 86. Bedd. 

 F S. I. t. 8. 



Common in the moist forests on the western mountains of the 

 Madras Presidency. 2,000-4,000 feet elevation, and in Ceylon and 

 the Malay Peninsula. 



(AFo in tropical America and the West Indies, Polynesian 

 Islands, New Zealand, Japan, South China, South Africa, Angola, 

 Fernando Po, and the Mascareen Islands.) 



TRIBE IV.— DAVALLIEiE. 



Sori marginal or submarginal, roundish, covered by a reniform 

 or suborbicular, squamiform indusium, which is open at the apex, 

 fastened broadly at the base, open or free at the sides. 



GENUS XIV.— HUM AT A. (Cav.) 



(Humatos, humid, in opposition to Adian/um.) 



Sori intra- or sub-marginal, globose, indusium coriaceous subor- 

 bicular or reniform, attached by a broad base, the apex and sides 

 free ; fronds articulated upon the rhizome, coriaceous, small usually 

 deltoid, more or less dimorphous, the barren ones less cut ; veins 

 always free, rhizome creeping, growing on trees or rocks. 



1. Humata heterophylla. (Smith.) Rhizome wide-creeping, 

 scaly ; frond shortly stalked, 3-6 inches ' long, 1 inch broad, 

 glabrous ; the sterile ones ovate-lanceolate entire or slightly lobed at 

 the base, the fertile ones narrower, deeply sinuate-pinnatifid ; sori 

 2-ic to a lobe. Hook. Syn. Fil. 88. Bedd. F. B. I. t. 100. 



Singapore, Penang, and the Malay Peninsula. 



(Also in the Polynesian Islands.) 



