406 LAMIACEAE 



S. ambigxia, Sm. E. B. t. 2089 (1809). 



S. siflvatici-pcdusiris, Wirtg. S. palnsiris x sylvatica, Sehiede de PI. 

 Hyb. 43. 



Comp. Cyb. Br. 275. Syme, E. B. vii. 58, t. 1070. Nyman, 578. 

 Fl. Oxf. 232. 



Native. Septal. Hedge-sides, &c., a hybrid of sylvatica and palustris, 

 which appears to be confined to clayey ground. Bare. P. July- 

 September. 



First recorded from Holmwood by Lord de Tabley (Ho7i. J. L. Warren) 

 in 1871. 

 2. Ock. Near South Hinksey,. the author in Rep. Exch. Clvb, 1894. 



4. Kennet. Mortirner, Tufnail. 



5. Loddon. Holmwood, Lord de Tahley. Near Twyford. 



My records belong to the true ambigua as figured in Syrae, E. B, 

 1070. Other hybrids which are nearer to palustris are more frequent. 



S. arvensis, Linn. Sp. PI. ed. 2, 814 (1762). Upright Ground Ivy. 



Glechoma arvensis, Linn. Sp. PI. 578 (1753). 

 Top. Bot. 319. Syme, E. B. vii. 60, t. 1072. Nyman, 578. FL Oxf. 223. 

 Native or colonist. Cultivated fields, more frequent on sandy soil. 



Rather local. A. March -November. 

 First record. Sideritis Alsine Trissaginis folio, C. B. Pin. In arvis et 



inter segetes variis circa Oxoniam (Bobarf, Morison, Hist. Ox. iii. 



389, 1699. 



1. Isis. Wytham. 



2. Ock. Near Cumnor Hurst, Sts^erJa'rtejPra?ices. Wootton, unusually 



large, Whitioell. Boar's Hill. Frilford. 



3. Pang. Streatley, Pamplin. Borders of fields at Ilsley, Pinnock's 



Hist. Berks, 1819. Tidmarsh. Tilehurst, Tufnail. 



4. Kennet. Burghfield. Mortimer. Silchester. Newbury. Theale. 



5. Loddon. Finchampstead, Bev. C. W. Penny. Frequent about 



Park Place, Mr. Stanton. Hurst, J. C. Melvill. Maiden Early, 

 Tufnail. Barkham. Wargrave. Maidenhead. 

 S. arvensis is recorded for all the bordering counties. 



*& 



*S. ANNUA, Linn. Sp. PI. ed. 2, 813 (1762). 



Betunica annua, var. a, glabra, Linn. Sp. PI. 573 (1753). 

 Comp. Cyb. Br. 547. Syme, E. B. vii. 6i, t. 1073. Nyman, 579. Fl. Oxf. 233. 

 Alien. Casual. Waste places. Rare. A. July- August. 

 First fovind in Berkshire by Mr. F. T. Richards, by the river-side near Folly 

 Bridge, Oxford, in 1887. 



I have seen it at Grandj)ont and at Didcot with other aliens. In the 

 latter place I have also gathered the var. longibracteata, Br^bisson, Fl. Nor- 

 mandie, 245, which has long, nearly entire bracts. The lower leaves are also 

 not so strongly crenate as in the type. 



