18 FERNS OF CEYLON. 



DAVALLIA (Microlepia) STRIGOSA,U>. (p. 98) D.proxima, BL 

 Common in the hilly forests of the Central Province, at an 

 elevation of from 2,000 to 4,000 feet. Terraneous. 



D. (Stenoloma) TENUIFOLIA, Sw. (p. 102). 



Roadsides and open places in the hills; common. Thwaites. 

 Abundant on moist banks, in the Central Province, above 3,000 

 feet. 



D. (Humata) VESTITA, Bl (p. 90) D. bipinnatifida, BL 

 Ambawella forest, below Hackgalla, at an elevation of about 

 5,000 feet, on trees. 



DIACALPE. 



D. ASPIDIOLDES, Blume. (p. 45). 



Abundant at Kooroonda Oya, Matturatto. Terraneous; dies 

 off during the northeast monsoon. The only species of the genus. 



DICKSONIA. 



D. so ABBA, Wall. (p. 54) D. deltoidea, Hk. 

 Abundant in the Central Province, above an elevation of 

 5,000 feet. 



DOODIA. 



D. DIVES, Kze. (p. 189). 



Not uncommon about Hackgalla and in the forests of the 

 Central Province, above an elevation of 4,000 feet. Terraneous. 



DRYMOGLOSSUM. 



D. PILOSELLOIDES, Presl (p. 398). 



Very common, on trees, about Columbo, and all over the Western 

 and Central Provinces, below an elevation of 2,000 feet. 



GLEICHENIA. 



G. (Mertensia) DICHOTOMA, Wittd. (p. 15). 



This widely distributed species has a long list of synonyms. 

 Extremely abundant at all elevations. Scrambles over small 

 shrubs in the open country. 



