134 COMPOSITE. 



Ostopokdum Linn. 



1. 0. Acanthium Linn. Cotton Thistle. 



Acanthium, B. 0. 2. Carduus tomentosus Acanthium 

 dictus vulgaris, M. M. 31. 0. Acomthium, M. PL 18. Belh. 

 332. 



Waste ground. B. August. 



1. Hills road, Cambridge. Hildersham. Behind Gog- 

 magogs Park. Fulbourn. — 2. Triplow.— 3. Toft. Barton. 

 Cambridge. Barrington. Gamlingay. Harston ; N. — 

 3. Near the Observatory. Back of Madingley Park, and at 

 the chalk-pit. — 4 Snailwell. Wicken. Chippenham. New- 

 market. — 6. Haddenham. Witchford. Ely. 



Carduus Linn. 



1. C. nutans Linn. Mush Thistle. 



E. C. 28. M. M. 31. M. PL 18. Eelh. 329. 

 Waste ground. B. May to August. 

 Common throughout the county. 



2. C. crispus Linn. Welted Thistle. 



G. polyanthi secunda species, E. C. App. L i. C. spino- 

 sissi/mus capitulis minoribus, M. M. 32. C. acanthotdes, 

 M. PL 18. Eelh. 329. 



Banks and waste places. B. June to August. 



Eather common, especially near Cambridge, and in the 

 western part of the county. Less frequent in the Fens. 

 Not noticed in (8) Wisbech District. 



Eay names the G. crispus /J. acantho'ides as a native of 

 the county in his Cat. App. i. 4, under the name of G. p. 

 prima species. I have not seen or heard of its being found 

 here. 



