FERNS OF CEYLON'. 31 



PTERIS. 



P. (Psesia) AQUILINI, L. (p. 162) P. arachnoidea, Kaulf. 

 Extremely abundant at high elevations. Terraneous. 



P. (Campteria) BIAURITA, Linn. (p. 164). 



Common at all elevations above 1,500 feet. Terraneous. 



P. CRETTCA, Linn. (p. 154) P. seabripes, Wall. 

 About Hackgalla. Terraneous. 



P. ENSIFOKMIS, Burm. (p. 155) P. ereuata, Sw. 

 Banks and roadsides; common. Thwaites. Very common, 

 at low elevations, in the Central Province. Terraneous. 



P. HOOKERIANA, Agardh. (p. 155). 



Regarded by Dr. Thwaites as a variety of P. cretica. In for- 

 ests of the Southern Province, at very low elevations. Peculiar 

 to Ceylon. Terraneous. 



P. (Lithobrochia) INCISA, Thunb. (p. 172) P. vespertilionis, 

 Ldbill.; P. sinuata, Brack. 



Common in the forests of the Central and Southern Prov- 

 inces, above an elevation of 3,000 feet. 



P. LONGIFOLIA, Linn. (p. 153)). 



Badulla Road, below Hackgalla. Terraneous. 



P. LONGIPES, D. Don. (p. 161). P. pellucens, Agardh. 

 Glen forest, Matale. Terraneous. 



P. (Lithobrochia) MARGINATA, Bory. (p. 172) P. tripartita Sw. 



"Roadsides and waste ground, up to 2,000 feet or so." 

 Thwaites. Common in the forests of the Central and Southern 

 Provinces. Very common about Galle. Terraneous. 



P. (Campteria) PATENS, Hook. (p. 165) P. decussata, ,/. Sm. 

 Oodawella, Matale and Mooroowa forests, above an elevation 

 of 2,000 feet. Terraneous. 



