Ferns of British India and Ceylon. 



439 



meniscioid sori being very common in flagellifera). Sir W. Hooker 

 in his Sf>. Fil. quite correctly described this species and its varieties ; 

 but he lumped subcrenata with contaminans, though he had formerly 

 distinguished it, first under the name of subcrenata, and afterwards as 

 prolifera. Mr. Baker, not understanding the three species, lumped 

 them all in his edition of the Synopsis ; and Mr. Clarke, not knowing 

 subcrenata, has puzzled pteridologists with a lot of varieties which do 

 not exist; I have had subcrenata and contaminans (very common South 

 Indian plants) for many 

 years in cultivation, and 

 costata (not South Indian) 

 I have seen in abundance 

 in Birma, and know them 

 to be three distinct species 

 without any permanent 

 varieties, though all three 

 variable, as are nearly all 

 other Gymnopteris. 



North India, Nepal 

 and Chittagong, up to 

 3,000 feet elevation ; Bir- 

 ma. (Some of the larger 

 forms turn very red in dry- 

 ing.) The meniscioid form 

 (deltigera) is common in 

 Sikkim and Assam, the 

 undulate form (formerly de- 

 scribed as a genus, Jenkin- 

 sia) is, I believe, only from. Birma. 



Acros. virens. Wall. Cat. 1033, from Tavoy, is a blank sheet, so 

 it is impossible to say whether the fern intended to be represented 

 was this species or contaminans ; it could not be subcrenata, as it 

 does not grow in Birma. 



13. Gymnopteris Pkesliana. (Hook) Rhizome stout creep- 

 ing, paleaceous with narrow attenuated lanceolate scales ; stipes 6 -to 



GYMNOPTERIS PRESLIANA. (Hook.) 



