i 
COMPOSIT Az 41 
forms under only 10 species. No attempt is made here 
even to enumerate all the forms which are regarded as 
species by the compilers of Swiss floras; the leading 
types only are mentioned, round which the remainder 
may be regarded as grouping themselves. 
A. Stem simple, leafless or with very few leaves ; Capi- 
tules very2w ; flowers light yellow ; plant usually with 
long runners:—H. Pilosella, L.; a very common low- 
land species ; with which are associated the alpine forms 
Hoppeanum, Schultz; Peleterianum, Mér; and Zardans, 
N. P. 
B. Resembling the last, but stem more leafy ; capitules 
more numerous :—//. Aurzcula, Law., a lowland species ; 
with the alpine forms fuscum, Vill.: acutifolium, Vill. 
(Jurcatum, Hoppe); alpicolum, Schleich.; and glacéale, 
Reyne. 
C. Resembling the last, but stem much branched, leafy; 
capitules numerous, crowded; flowers often orange :-—/7. 
aurantiacum, L.; piloselloides, Vill. ; Laggeri, Schultz. 
LD. Root-stock without stolons, but with rosettes of 
radical leaves at the time of flowering; capitules solitary, 
umbellate ; involucral bracts in many rows. 
a. Pits of receptacle neither ciliate nor margined :— 
fl. helveticum, Briigg.; alpinum, L.; nigrescens, Fries; 
Slanduliferum, Hoppe; armertotdes, Arv.; piliferum, 
Hoppe ; Bernense, Christ ; villosum, L.; flexuosum, W. 
and K.; dentatum, Hoppe; glabratum, Hoppe; arenz- 
cola, Godr.; bupleuroides, Gmel.; porrifolium, L. 
6. Pits of receptacle with a ciliate or slit membranous 
Margin ; involucre and stalk of capitule glandular-hairy : 
—f1. longifolium, Schleich. ; amplextcaule, L.; pulmon- 
arioides, Vill. 
