1888.] H. F. Blanford— ^ List of the Ferns of Simla. 309 



69. AspiDiUM (Poltstichum) Prescottianum, Wall. 



Abundant on Hatu, growing in dense masses on the hill side be- 

 tween 9,500 and 10,500 ft. ; associated with A. filix foemina, var. 

 dentigera; N. filix mas, xsly. fih'illosa ; Osmunda Glaytoniana, &c. 



60. AsPiDiUM (Ctrtomium) falcatum, Swartz, var. caryotideum, Wall, 



Very rare. The one or two known localities are rocky ravines 

 between 5,000 and 6,500 ft. 



61. Nephrodium (Lastrea) prolixum, Baker. 



Common in ravines below 6,000 ft. I include herewith the forms 

 from Simla that have been referred to N. canum, the type of which is a 

 specimen of unknown origin, grown at Kew and having sabmarginal sori. 



6,2. Nephrodium (Lastrea) filix mas, Richd., var. normalis, Clarke. 



One of the commonest ferns in and about Simla, in partially shaded 

 spots, at all elevations above 5,000 ft. Above 8,000 ft., the stipe and 

 rachis become more scaley, the pinnules more acute and deeply cut, the 

 frond being sub-tripinnate. These are the forms referred hy Mr. Clarke 

 to N. rigidum, but there is a complete passage from the simpler to the 

 more compound forms. All have the under surface of a pale bluish 

 tint, which distinguishes them from var. marginata at lower levels. 



63. Nephrodium filix mas, var. patentissima, Wall. sp. 



Only the small form mentioned in Mr. Clarke's review occurs in 

 the neighbourhood of Simla, and this only at elevations above 8,000 ft. 

 It is not uncommon about Nagkanda and on Hatu, and seems to pass 

 into YSir.fihriUosa, to which, as pointed out by Col. Beddome, it is nearly 

 allied. 



64. Nephrodium filix mas, yslv. fibrillosa, Clarke. 



Very abundant on Kumalhori and Hatu above 8,500 ft., ranging up 

 to 10,500 at least. 



65. Nephrodium filix mas, var. Schimperiana, Hochst, sp. 



Rare below 7,000 ft., but very common, and in places abundant, be- 

 tween that and 9,000 ft. on Jako, Mashobra, and Mahasu hills, and along 

 the Tibet Road about Matiana and Nagkanda, in situations similar to 

 those of var. normalis. It attains a large size, fronds of 2 and 3 ft. being 



