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Plant, and calyx, quite without hairs. 
Flower-heads all crowded close to the root, at the base 
f of the leaf-stalks. 
suffoca’'tum. 
Heads along, or at the end of, the stem. 
Calyx-teeth slender, as long as the corolla; heads 
stalked above the leaves ; (Cornwall). } 
stric’tum. 
Calyx-teeth wide, shorter than the corolla, spreading 
widely after flowering ; heads not stalked, } 
glomera’'tum. 
~Plant, and calyx, more or less hairy. 
Flower-heads stalked above the leaves. 
Heads cylindric; corolla almost hidden by the 
[ slender, hairy calyx-teeth. } 
Q arven'se. Hare’s-foot Trefoit. 
Heads shortly oval; calyx-teeth wide, stiff, shorter ~ 
than the corolla. | 
marit'‘imum./ 
Heads not stalked above the leaves. 
Veins of leaflets curved backwards near the margin; 
calyx-teeth stiff and spreading in fruit. 
sca’brum. 
Veins straight; calyx-teeth erect or nearly. 
Stipules of upper leaves much dilated; calyx 
swollen and strongly ribbed after flowering. 
stria‘tum. 
Stipules all narrow; calyx scarcely changed; 
(Cornwall). Bocco'ni. 
TRIGLO'CHIN. 
Stigmas 3; fruits 3-sided, made up of 3 pouipined seg- 
ments or “ carpels.” 
ei palus'tre. Avrrow-grass./ 
Stigmas 6; fruits more swollen, 6-sided, made up of RS 
carpels. J 
marit'imum. 
TUSSILA’GO. 
fo erercads yellow, the outer florets radiating ; leaf-stalk 
round, with one groove in front. } 
Far'fara. Coltsfoot. 
~Heads pink or purplish, not radiating; leaf-stalk furrowed 
all round. } 
Petasi'tes. utterbur. 
