1888.] H. F. Blanford— ^ List of the Ferns of Simla. 307 



46. AsPLENiuM (Athyrium) pectinatum, Wall. 



Not uncommon in damp ravines below 6,000 it. It has, as a rule, a 

 creeping root-stock, but the stipes are sometimes, though rarely, tufted. 

 The partial rhachises and costaD bear glandular filaments like A. tenui- 

 frons. It ranges down to at least 4,500 ft., generally growing near 

 streams, and I have found it as high as 6,000 ft., or 1,000 ft. higher than 

 Clarke's highest assigned range. 



47. AsPLENiUM (Diplazium) Japonicum, Thunb. 

 Rare. I have found it only at the Chadwick falls at 5,800 ft. 



48. AsPLENiUM (Diplazium) torrentium, Clarke. 



Plate XVI. 



I give this on Mr. Clarke's authority, who identified my specimens 

 with the remark that " they are A. torrentium exactly as we have it in 

 Sikkim." For my own part, I had regarded it as merely a simple form 

 of the next following species, growing in exactly the same situations. 

 It is rare, as I have met with it twice only at elevations of 4,500 ft. and 

 5,800 ft. 



49. AsPLENiUM (Diplazium) polypodioides, Mett. 



Among boulders in the beds of streams below 6,000 ft., a Diplazium 

 with large bipinnate fronds is common in all the valleys around Simla. 

 The caudex is not erect but decumbent with tufted stipes. My impres- 

 sion is, and always has been, that, despite some variation in the form of 

 the segments and the length of the sori, they are all of one species. But 

 Mr, Clarke, whose much wider experience gives him an authority to 

 which I cannot pretend, has examined my collections with the result 

 that, in addition to A. torrentium and A. polypodioides, fere typica, he 

 identifies the two following. 



50. AsPLENiUM (Diplazium) latifolium, Don. vsiv. polymorpha. Wall. sp. 



Plate XVII. 

 From three localities varying from 4,500 ft. to 6,000 ft. 



51. AsPLENiUM latifolium, Ya.r. frondosa, Wall. sp. 

 Plate XYIII. 

 From two localities at 4,500 ft. and 5,500 ft. respectively. 



