By Thomas Bruges Flower, Esq. 



201 



North Division. 



4. North-west District, "In the brick field, opposite the inn at 

 * * near Devizes," Dr. R. C. Prior. Wats. Bot. Guide. 



5. North-east District, Banks of the Canal between Swindon and 

 Cricklade. Vexy local in Wilts, and occurring but sparingly in 

 the above localities. About 1 foot high. Leaves waved, toothed, 

 and spiny, whiter beneath than in any of the preceding species. 

 Flowers solitary. An interesting form of this plant was found a 

 few years since, at Penhill near Swindon (Dist. 5), by the late 

 Mr. S. P. Woodward (C. Wood war dii) . It is now considered a 

 hybrid between C. acaulis and C. pratensis, varying extremely in 

 appearance, but always more nearly resembling the latter than the 

 former, so that it may be merely an extreme state of it. Some of 

 the forms bear a very close resemblance to C. tuberosus. 



■ 8. C. tuberosus, (Linn.) tuberous Thistle. Engl. Bot. t. 2562. 

 Cirsium bulbosum, DC, Koch. 



Locality. In thickets and borders of woods. P. Fl. August, 

 /September. Area, * * 3. * * 



South Division. 



3. South-icest District, " In a truly wild thicket of brush wood, 

 called Great Ridge, on the Wiltshire Downs, between Boyton 

 House and Fonthill, abundantly," A. B. Lambert, Esq., Engl. Flor. 

 vol. iii. This is the only locality at present known for this most 

 distinct and handsome species in England, where it formerly grew 

 in some abundance, but of late years has become remarkably 

 scarce. Luxuriant forms of C pratensis, and C. acaulis, have not 

 unfrequently been mistaken for it, in the other parts of the county. 

 For further remarks on 0. tuberosus, I would refer to the Society's 

 Magazine vol. iii., p. 249. 



9. C. acaulis, (Linn.) stemless or dwarf Thistle, Ground Thistle. 

 Acaulis is a barbarous compound of a. priv, Gr. and caulis, Lat. a 

 stem. Engl. Bot. t. 161. St. 24, 16. 



Locality. Dry calcareous pastures. P. Fl. July, September, 

 Area, 1. 2. 3. 4. 5. Commonly distributed throughout the County, in 

 dry upland meadows and pastures ; extremely frequent on the 

 highest chalk downs. Leaves spreading, close to the ground in the 



