188S.] H. F. Blanford— ^ List of the Ferns of Simla. 299 



5. Davallia (Leucostegia) pulchra, Don. sp. 



The typical form, distinguished by its red rachis, obtuse segments 

 and ovate scales of the rhizome is abundant on trees on Kumalhori 

 and Hatu above 8,500 ft., but does not occur lower, 



6. Davallia pulchra, var. pseudocystopteris, Kunze sp. 



Very abundant on trees at Simla between 5,500 and 8,000 ft. It 

 is to be met with only in the rains, and blanches and shrivels up with 

 the first northerly winds, about the beginning of September, except 

 in damp ravines, where it lasts a few weeks later. 



7. DA7ALLIA (Stenoloma) Chinensis, Swartz. 



Rare. In two ravines below Chota Simla at about 5,000 ft. 

 Clarke quotes it from Kumaon ; but it is rare at Mussoorie. 



8. Adiantum lunulatum, Burm. 



At 4,500 ft. in the Sainal valley below Simla, but at no higher ele- 

 vation. It ranges over the plains of India in damp places. 



9. Adiantum caudatum, L. 



Common in damp situations by streams from 5,000 ft. downwards. 

 Abundant in the Doons and Sivaliks. 



10. Adiantum Edgworthii, Hook. 



Found in situations similar to the preceding, but at higher levels. 

 It is not common, but I have gathered it in several ravines below Simla 

 up to 6,000 ft. 



11. Adiantum capillus Veneris, L. 



Common on damp rocks by streams below 6,000 f h. In the arid 

 climate of Beluchistan, it grows in the subterranean water-courses (term- 

 ed karezes) used for irrigation. 



12. Adiantum venustum, L. 



One of the commonest and most abundant ferns of Simla, covering 

 banks and sloping ground in shady places, and ranging from 4,500 ft. 

 up to the top of Hatu at 10,500 ft. 



It varies much in cutting, being either 2- or 4-pinnate, Also in 

 the shape and size of the ultimate pinnules, which vary from narrowly 



