FLORA OF OXFORDSHIRE. 233 
Native. Paludal. Ditches and streamsides, thickets, and fields. Not 
uncommon. P. July—Sept. 
First record, Sib. 1794. 
Occurs in all the districts. 
Mr. T, Beesley found a hybrid,? ambigua, Sm., in Stayley’s Meadow, 
Banbury, and other hybrids nearer palustris than ambigua have been 
noticed near Thame, at Horton, Islip, and Bampton. 
8. arvensis, L. 
Top. Bot. 319. Syme, E. B. vii. 60. 1072. Nym. 579. 
Native. Agrestal. Cultivated fields. Rather rare. A. Mar—Nov. 
First record, Sideritis alsine Trissaginis folio, C. B. P. 
‘In arvis et inter segetes variis circa Oxoniam,’ Morison, iii. (Bobart), 
1699. 
3. Swere. In sandy cornfields frequent, 7. Bees. Milton, A. Fr. 
4. Ray. The Parks, Sib. [extinct]. In cornfields almost everywhere 
about Oxford, as St. Giles’ fields [extinct], Bx. Also in Purton. 
5. Isis. Stanton Harcourt, South Leigh, Sib. Church Handborough, 
Bz. Charlbury! BR. Linton. Ascott. 
6. Thame. Cowley, Iffey, Bx. Dorchester. 
7. Thames, Goring to Woodcote, Nettlebed. 
** §. annua, LZ, 
Syme, E. B. vii. 61. 1073. Nym. 579. 
Alien. Probably introduced with pheasants’ food in Mill Wood, Church 
Handborough, F. T. Richards, 1882! 
* Leonurus Cardiaca, L. Motherwort. 
Syme, E. B. vii. 68. 1080. Nym. 580. 
Alien. Extinct. Waste places. P. Aug. ; 
‘In stony and other barren and rough places, especially about Oxford,’ 
Gerarde, 1597. 
No other record. Berks one plant near N. Woodhay Common, 1870, 
Brit. 
BALLOTA. ZL. 
B. alba, L. Black Horehound. 
B. fetida, Lam. Top. Bot. 312. Syme, E. B. vii. 52. 1065. Bx. 86. 
Native. Viatical. Hedgebanks and waste places. Verycommon. P. 
June-Sept. 
First record, Sib. 1794. B. nigra, L. 
With white flowers at Littlemore, R. Walk. On Shotover and near 
Caversham, The teeth of calyx vary as to length and to fineness, but they 
never assume, so far as my observation extends, the shape of B. nigra. 
Ballota is found by our dustiest roadsides. 
