143 



HAWKWEEDS. 



JOHN CRYER. 



Ix an interesting article in the ' Journal of Botany ' for January 

 and February, the Rev. A. Ley, M.A., dealt with the groups 

 and species of A^e West Yorkshire hawkweeds and their dis 

 tribution as far as they have been ascertained. Much work,, 

 however, remains to be done before the list of West Yorkshire 

 hawkweeds and the distribution, are at all adequately known. 

 Grassington and the immediate neighbourhood are fairly rich 

 in hawkweeds, as the following list of species gathered by the 

 writer will testify : — 



(i) Hieraciiim hypochaeroides Gibs. , var. saxorum F. J. Hanb. 



(21 ., hritannicum F. J. Hanb., var. ovale Ley. 



(3) ,, silvaticum Gouan., var. asymmetricum Ley. 



(4) var. suhcyaneum W. R. Linton. 



(5) ,, cymbi folium Purchas 



(6) ,, duriceps F. J. Hanb. (Type) 



(7) ,, scanicum Dahlst. 



(8) ,, sciaphiliim, Uechtr., var. transiens nov. var. 



(9) ,, stnimosmn sp. nov. 



(10) ,, sparsifolium Lindeb., var placerophyllum 



Dahlst. 



fii) ,, tridentatnm Fr. , var. acrifoliiun Dahlst. 



^12) ,, rigidum Hartm., var. calcavicolum F. J. Hanb. 



On comparing the above with Mr. Ley's list it will be noticed 

 that numbers g, 11, and 12, are not recorded for the West 

 Riding of Yorkshire, and numbers i, 2, 6, 7 and 8 are not 

 recorded for Wharfedale, and the rest are not recorded for 

 Grassington and the immediate district. 



H. savcophyllmn Stenstr. is recorded by Mr. Ley for Lang- 

 cliff, Ribblesdale. The writer gathered a fine specimen at 

 Malham, August 2nd, 1906, also a specimen of H. britannicum 

 F. J. Hanb., var ovale, Ley, and one of H. cerebridens Dahlst., 

 in the neighbourhood of Malham. Fine specimens of H^ 

 scaniaim Dahlst. were found growing near Leeds in September 

 of last year, along with H. cacuniinaium Dahlst. Mr. Ley 

 says of this latter, ' rare in Britain.' 



H. Gothiciim Fr., described by Mr. Ley as ' not common/ 

 was found by the writer in fair abundance near Shipley, August 

 1907. 



1909 April :. 



