COMPOSITE FAMILY 



289 



terminal, almost umbellate, corymb, large, yellow ; peduncles with 

 stellate down, slender, stiff, bracteate ; involucre usually dark 

 green, glabrous, with recurved tips. — Stony thickets ; common. — 

 Fl. July — September. Perennial. 



42. Hypoch^ris (Cat's-ear). — Plants with a milky juice; leaves 

 all radical, pinnatifid ; bracts many, imbricate, oblong ; receptacle 

 flat, scaly ; florets all ligulate, yellow ; fruit rough, beaked ; pappus 



thrIncia nudicaulis (Hairy Thrincia). 



of i row of feathery hairs, usually with an outer row of short 

 bristles. (Name of Greek origin, supposed to indicate its fitness 

 for hogs.) 



1. H. glabra (Smooth Cat's-ear).— An almost glabrous plant, 3 — 

 10 in. high; leaves spreading in a circle on the ground, oblong; 

 scapes several, branched ; heads small, yellow ; involucre as long 

 as the florets. — Dry gravelly places ; not common. — Fl. June — 

 August. Annual. 



2. H. radicdta (Long- rooted Cat's-ear). — A hispid plant, about 

 a foot high ; leaves all radical, blunt, sinuate, or runcinateiy pin- 



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