236 



SYNGEN. POLYGAM. JE.&UAL. 



winged. Leaves oblong, deeply sinuated. Flowers solitary, large, 

 handsome,, purple 5 said to smell powerfully of musk in warm wea- 

 ther : most so in the evening according to Lightf. 



2. C. acanthoides (welted Thistle), leaves decurretit sinuated 

 spinous, involucre globose nearly sessile its scales linear slightly 

 recurved. Ligh/f. p. 452 (C. crispus). E. B. t. 9/3. 



HAB. Way-sides and waste places j varying with white flowers. FL 



June, July. 0. 

 Three to four feet high, uninterruptedly winged, branched. Flowers 



clustered at the ends of the branches, deep purple. 



3. C. tenuiflorus (s lender -floweied Thistle], leaves decurrent si- 

 nuated spinous somewhat cottony beneath; involucres nearly 

 cylindrical clustered sessile their scales lanceolate erect. 

 Lightf. p. 452 (C. tenwflorus). E. B. #.412. 



HAB. Waste places near towns, especially by the sea-coast. Abun- 

 dant about Edinb.,, Maugh. About Balvie, near Glasg., Hopk. 

 FL June, July. . 



Two to four feet high, winged the whole way up the stem with the de- 

 current bases of the leaves. Flowers small, pale purple. 



** Leaves sessile. 



4. C. maricmus (Milk- thistle), leaves amplexicaul waved spi- 

 nous, the radical ones pinnatifid, scales of the involucre sub- 

 foliaceous recurved spinous at the margin. Lightf. p. 454. 

 E. B. t. 976. 



HAB. Banks and waste places about towns and villages. Castle rock 

 at Edinb., Dr. Parsons. King's Park, Edinb., Maugh. Rock of 

 Dumbarton castle, Hopk., &c. FL July. . 



Three to five feet high. Distinguishable at once by the milky veins 

 on the leaves and the great recurved scales of the* involucre. 



16. CNICUS. 



* Leaves decurrent. 



1. Cn. lanceolatus (Spear-thistle), leaves decurrent hispid 

 pinnatifid their segments generally two-lobed spreading spi- 

 nous, involucres ovate tomentose their scales lanceolate 

 spreading. Lighlf. p. 450, and .E. B. t. 107 (Carduus lane.). 



HAB. Way-sides, frequent. Fl. July, Aug. $ . 

 Three to four feet high. Leaves downy beneath 5 point long, very 

 sharp. Flowers standing singly, large. 



2. Cn. palustris (Marsh- this lie), leaves decurrent scabrous pin- 

 natifid spinous, involucres ovate clustered their scales ovato- 

 lanceolate mucronate appressed. Lighlf'. p. 452, and .E. B. 

 t. 974 (Carduus pal.). 



HAB. Moist meadows and shady places, frequent. Fl. July. <$ . 



Four to six feet high, very full of rather short spines, very erect. Re- 

 markable for its clustered heads of jlowers, whose involucres have 

 the scales broad, appressed,, keeled, and mucronated. 



