40 THE ‘FLORA’ Or THE ALS 
lower stem-leaves lyrate, upper auriculate-amplexicaul, 
flowers dark yellow; Pyrenees. C. paludosa, Mcench. ; 
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. albzda, Vill.; capitule usually soli- 
tary, on a long leafless stalk, stem glandular-pubescent, 
whole plant whitish; Dauphiny, Pyrenees. 
66. BARKHAUSIA, Meench. 
Resembling Cyrepzs, but achenes beaked, minutely 
hispid. Not alpine. 
The two English species, B. fetzda, DC., foetid, with 
yellow styles and flower-stalk thickened upwards; and. 
taraxactfolia, 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. HIERACIUM, 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 
