380 AUTUMN FLOWERS AND FRUITS. 



Great Knapweed. Fields and hedges. Fl. July to Sep- 

 tember. 



*** Involucral scales horny at the end, with palmate spines. 



C. solstitialis : annual; stem 1-2 feet high, branched, 

 spreading, winged with the decurrent bases of the linear-lan- 

 ceolate entire hoary leaves, the root-leaves lyrate ; heads ter- 

 minal, solitary; involucral scales woolly, palmately-spinous, 

 the central spine of the intermediate scales very long, needle- 

 shaped; florets yellow. Yellow Star-thistle. Cornfields and 

 waste places near the sea. Fl. July to September. 



(36) Crepis. 



C. virens : annual ; stem 1-3 feet high, subcorymbose ; 

 leaves very variable, lanceolate, remotely-dentate, runcinate or 

 pinnatifid, the uppermost linear-arrowshaped, clasping, with 

 flat margins; outer involucral scales adpressed-linear, inner 

 ones glabrous within ; florets yellow. Common in dry pas- 

 tures and wastes. Fl. June to September. 



C. paludosa : stem two feet high, leafy, simple, angular, 

 subcorymbose ; leaves large, ovate-oblong, taper-pointed, run- 

 cinate-dentate, narrosved into a footstalk, glabrous, the upper 

 ones ovate-lanceolate, cordate, clasping, acute, entire or den- 

 tate ; involucral scales lanceolate, much attenuated, glandular- 

 pilose, the outer ones short ; florets yellow. Damp woods and 

 shady places. Fl. July to September. 



(37) Hieracium. HAWK-WEED. 



H. vulgatum : stem erect, leafy, 1-3 feet high, with several 

 leaves, the radical ones few, persistent, all oblong-lanceolate, 

 narrowed into a footstalk, usually coarsely- toothed, the teeth 

 all pointing upwards ; heads panicled ; involucre pubescent ; 



