292 COMPOSITAE 



5. Loddon. Wellington College, Penny. Frequent on gravelly 



soil near Park Place, Stanton. Ambari'ow. Finchampstead. 



Ascot. Suniungdale. Early. Sonning. Kisely. Farley Hill. 



Bagshot. Sandhurst. Bintield. Bracknell. Windsor Park, &c. 



Var. AURicuLATus, Meyer, Chlor. Hanov. 388 — S. lixidus, Sni. E. B. 



t. 2515 (not of Linn ), Syme, E. B. t. 751, occurs usually in more 



shady places than the type ; I have it from Chawley, Bagley, &c. 



S. syivaticus occurs in all the bordering counties. 



[S. viscosus, Linn. Sp. PI. 868 (1753). Clammy Groundsel. 



Top. Bot. 255. Syme, E. B. v. 82, t. 752. PI. Oxf. 160. Nyman, 358. 



Recorded for Surrey and Hants. In Sibthorp's Flora Oxoniensis a form of 

 the preceding species was mistaken for it.] 



*S. squalidus, Linn. Sp. PI. 869 (1753). Oxford Ragwort. 



S. chi-ysanthemifoliiis, Poir. Enc. vii. 96 (1806). 



Comp. Cyb. Br. 534. Syme, E. B. v. 83, t. 753. Nyman, 357. Baxt. 

 t. 52. Fh Oxf. 158. 



Denizen. Railway-banks and ballast and waste ground, and occasion- 

 ally on walls. In Oxford it is common on walls. Locally common 

 and increasing rapidly along the permanent way of the Great 

 Western Railway System. A. B. or P. April-October. 



First record. Wytham, 1833, Baxt. Phaen. Bot. 1834. 



1. Isis. On a wall at Wytham in 1833, Baxter. 



2. Ock. Ditch near Kennington, Wicks. Waste ground at Folly 



Bridge and Grandpont. On a wall in Ock Street, Abingdon. 

 Plentiful on railway-ballast at Didcot, and sparingly at Challow. 

 Near Cholsey. 



3. Pang. Railway-bank, Tilehurst, 'a casual only,' Lees, 1883. 



Plentiful by the railway near Reading, also near Pangbourn. 



4. Kennet. Near the Kennet's mouth. 



The plant offers a considerable amount of variation. 



Var. iKcisus, Guss, Fl. Sic. ii. 475 (1843^, is the usual form of the 

 plant as it grows on walls and dry ground about Oxford, Reading, &c. ; 

 it can scarcely be separated from S. chrysanthemif alius, Guss, 1. c. 



Var. LATiLOBus, DC., Prod. vi. 345 (1837), has the leaves cut into 

 broader lobes and is found occasionally on rich waste ground. A more 

 extreme form with nearly entire leaves (/. subintegra) was distributed 

 by the author through the Bot. JExch. Club in 1885 and 1886. It is found 

 on rich waste ground, as at Reading, but the more cut-leaved forms 

 are also found with it. 



5. SQUALiDus X VULGARIS = ? S. vemalis, Boswell [Syme], not of Waldst 

 et Kit. xS. Baxterii, Druce, in Bep. Bot. Exch. Club 374 (1892). Plants 

 which have much of the aspect of S. vernalis are sometimes found on 

 waste ground with both parents. I have seen such at Grandpont, 



