36 



LEES : ADDITIONS TO WENSLEYDALE FLORA. 



a hybrid between Z. vulgaris and L. striata ; but seeing that 

 it perfects seeds here, and that L. striata does not appear to 

 occur in the district, it is perhaps true italica Trev., and, if so, 

 must have been introduced with the Sediiiiis^ &c. It is possible 

 that all three are alike only denizens^ although there seems no 

 reason why it should here be relegated to the alien category 

 solely because some of its associates are suspicious. Other native 

 species it would be folly to suspect, grow in the same plantation, 

 such as Hieraciuiii casiuni and Asplenium Adiantum- nigrum^ 

 neither of which one ought to account planted, although they 

 are in danger of being choked out by Sedzim ricpestre^ album, and 

 oppositifoliuni, Cotoneaster inicrophylla and Hypericum calycinum. 



2 Melampyrum sylvaticum L. If. 



West bank of Whitfell Gill, above the main Force ; J. P. ! 



3 TJtricularia minor L. Z. 



Very wet, peaty spot on Thornton Rust Moor, North-east of 

 Addlebrough Crags, Wensieydale, N. W. Yorks ; alt. 1,400 feet; 

 |. P. Quite a new station, far away from, and at a much 

 greater altitude than any of the other Yorkshire ones, which are 

 on the low peat mosses. 



4 Trientalis eiiropsea L. H. 



Plentiful in Widdale Car Plantation, south end, west side of 

 Widdale. * 



5 Piantago intermedia Gilib. H. 



Stony ground, by roadside near Tarney Force, Lower AViddale. 



6 Populus tremula L. IT. Z. 



little gully, west of Spen House, Skellgill. Semerwater side. 

 North bank of Yore, Bear Park. All these are type villosa, with 

 downy young leaves. 



7 Jnniperus communis L. Z. 



Very sparingly on a low stony ridge, on the moor above 

 Carperby; but on the V^^ensleydale slope, as Mr. J. Percival 

 informs me. On the steep, clayey slope of the bank of drift, 

 north side of R. Yore, near Askrigg Station, accidentally 

 discovered by me late in October. 

 S Potamogeton rufescens Schrad. Z. 



In a pool at Strands, between Bear Park and Woodhall ; 

 J. Percival ! 



9 Alisma natans L. H. ♦ 



In Semerwater, 'near the Church end,' July 1866. I quote 

 from the label of the specimen I gathered (from a boat) when 

 living at High Blean. I was not able to re-gather it last 

 3^ear from inability to obtain a boat. Baker gives a station in the 



Naturalist, 



