40 THE FLORA OF THE ALPS 



lower stem-leaves lyrate, upper auriculate-amplexicaul, 

 flowers dark yellow ; Pyrenees. C. paludosa, Moench. ; 

 capitules numerous, stem-leaves cordate or sagittate, in- 

 volucre covered with black glandular hairs ; damp woods. 

 E. Flowers golden-yellow; lower involucral bracts 

 greatly elongated: C. albida^ Vill.; capitule usually soli- 

 tary, on a long leafless stalk, stem glandular-pubescent, 

 whole plant whitish ; Dauphiny, Pyrenees. 



66. BARKHAUSIA, Moench. 



Resembling Crepis, but achenes beaked, minutely 

 hispid. Not alpine. 



The two English species, B. fcetida, DC., foetid, with 

 yellow styles and flower-stalk thickened upwards; and 

 taraxacifolia, DC., with brown styles and very slender 

 flower-stalks, not unfrequent on dry banks; also B. 

 setosa } Hall, involucre covered with very stiff yellowish 

 hairs ; in cultivated fields. 



67. HiERAClUM, L. 



Flowers yellow or orange ; capitules solitary, or more 

 often numerous, corymbose; involucral bracts in several 

 rows ; receptacle naked, pitted ; fruit not beaked ; pappus- 

 hairs in one row, simple, rigid, brown. 



The Hawkweeds are among the most difficult genera 

 of flowering plants. Different authors differ very widely 

 as to the value of the specific characters; the extreme 

 forms pass into one another by insensible gradations ; and 

 hybridisation appears to be common. Gremli enumerates 

 85 Swiss species, and Dalla Torre 94 as natives of the 

 Alps ; while Hooker includes the very numerous English 



