CNICUS 299 



Ruclge. Lower Culham, Stanton. Stubbing's Heath. Wargrave. 

 Hurley. Bisham. Maidenhead. Bray. Waltham, &c. 



C. NUTANS X CRISPUS = C. ttcanthoides, Bab. Man. Brit. Bot. ed. 2, 183 ; 

 this hybrid occurs at Frilford, Cumnor, Besilsleigh, Tubney, on the 

 Boar's Hill range, at Letcombe, Hungerford, Twyford, &c. A specimen, 

 gathei'ed by the author at Cumnor in 1881, is in Herb. Brit. Mus. See 

 Rep. of Bot. Exch. Club for 1881, in which Dr. Boswell Syme agreed to the 

 name, and Professor Babington said it 'was what he had called 

 €'. acanthoides,' which is a hybrid of the two species mentioned. 



C. nutans occurs in all the bordering counties. 



C. crispus, Linn. Sp. PI. 821 vi753)' Welted Thistle, Thistle upon Thistle. 

 Top. Bot. 242. Syme, E. B. v. 7, t. 684. Nyman, 413. Fl. Oxf. 175. 

 Native. Septal. Hedges, open woods, waysides, and waste places. 

 Common and generally distributed in partially shaded situations. 

 B. May-October. On the ruins of Reading Abbey it is plentiful. 

 First record. C. acanthoides (_ without locality), Russell's Cat. 1839. 



A form from Wantage, with large solitary anthodes, possibly caused 

 by growing in rich soil, was collected by Dr. Trimen and is in Herb. 

 Brit. Mus. White- flowered forms have been noticed at Kennington, 

 Moulsford, &c. 



Var. ACANTHOIDES (Linn. Sp. PI. 821, as a species, and also as 

 a species in Index Kewensis), with larger leaves and fewer and mucli 

 larger anthodes, has been seen at Egrove, Tidmarsh, Hinksey, Kingston 

 Bagpuze, Cumnor, &c. 



Var. POLYANTHEMOS (Koch, Syn. Fl. Germ. 401, as a species), with 

 smaller and more numerous anthodes, is the more frequent plant, 

 especially in drier situations. 



C. crispus occurs in all the bordering counties. 



CNICUS, Linn. Gen. n. 833 (Tourn. Inst. t. 257^ 

 Cirsium, Adans. Fam. ii. 116 (1763) (Tournefort, Inst. t. 255). 

 C. lanceolatus, Willd. Prod. Fl. Berol. 259 (1787). Spear Thistle. 



Carduus lanceolatus, Linn. Sp. PI. 821 vi753). Cirsium lanceolatum, Hill. 

 Herb. Brit. i. 80. C. lariceatus, Gerard, loii. 



Top. Bot. 242. Syme, E. B. v, 10, t. 686. Nyman, 406. Fl. Oxf 173. 



Native. Viatical. Hedges, pastures, roadsides, waste places, newly 

 cleared or open woods, &c. Very common and generally dis- 

 tributed. B. May-November. 



First record. Sonning, Mr. S. Eudge in Herb. Brit. Mus. 1800. Pub- 

 lished as Carduus lanceolatus, Mr. Bicheno in Mavor's Agr. Berks, 

 1809. 

 This and C. arvensis are our two commonest thistles, next to these 



come C. palustris and Carduus crispus. 



