20 



The Naturalist. 



10. Pterogonium gracile, De Not. — Found many years ago above 

 Austwick, by Mr. J. Nowell in company with Dr. J. Windsor, but 

 the record has escaped the notice of subsequent compilers. On trees 

 and stones near Low Gill, above Sedbergh. 



11. Thuidium Blandovii, W. &, M. — First found in the Eiding 

 near Malham Tarn, by Messrs. J. Percival and J. Whitehead, in 1868. 



12. Plagiothecium nitidulum, Wahl. — Discovered by Messrs. White- 

 head and Percival, in Heseltine Ghyll, Littondale, in 1861. Not 

 previously known as a native of Britain even. 



13. Hypnum arcuatum, Lindb. — First discovered in Hareley Wood, 

 near Todmorden, by Mr. J. Nowell, but the record seems to have 

 dropped from notice, as it was repeated neither in Dr. Carrington's 

 list, nor Mr. Hobkirk's. Found by Mr. J. G. Baker, by the river 

 Ure, opposite Hackfall, and by myself on bank of field above Hack- 

 fall — probably same place. 



14. Hypnum eugyrium, Schw. — According to Prof. Schimper, a 

 moss discovered by Mr. J. Nowell, at Cautley Spout cascade, up 

 Rawthey Dale, was this species. The valley of the Rawthey wants 

 well working bryologically and lichenologically. 



15. Hypnum umbratum, Ehrh. — Discovered long ago by Mr. Wm. 

 Brunton, in " Dallen Ghyll, near Ripon," — it is nearer Ripley — 

 according to original MS. note in an old copy of Turner & Dillwyn's 

 " Botanist's Guide," formerly belonging to Mr. Joseph Woods, but 

 now to Mr. Frederick Townsend, to whose courtesy I am indebted 

 for much interesting botanical material not available to the compilers 

 of former West Yorkshire Floras. Hypnum umbratum has not 

 again turned up, but as the species is not an unlikely one to have 

 existed (or to still exist j in the Riding, such a record hardly merits 

 an unexplained exclusion. 



Postscript, August 18. — Since writing out the above, yet three other 

 species have I had to add to the lists for the West Yorkshire Flora. 

 They are as follows : — 



1. Dicranodontium longirostre, W. & M., is reported to me as 

 discovered by Dr. Parsons, at Shipley, in July last. Not hitherto 

 known in Riding. 



2. Didymodon luridus^ Hornsch, found by Dr. Parsons in Wentvale, 

 in July. Also new. 



3. Trichostomum nitidum, Lindb., is also reported by the same close 

 observer, and also from Wentvale. 



