352 FLORA OF OXFORDSHIRE. 
Bullingdon Green, Bx. South side of Shotover, H. Bos. By field- 
path from Headington Quarries to Shotover, H. H. Garnsey. 
Berks. Hinksey, H. Bos. Radley, H. EH. Garnsey. Kennington. 
HORDEUM. L. 
H. sylvaticum, Huds. 
Elymus europeus, L. 
Top. Bot. 505. Syme, E. B. xi. 192. 1820. Nym. 837. Bx. 496. 
Native. Sylvestral. Woods, on calcareous or chalky soil. Local. P-. 
July, Aug. 
First record, Bobart, 1690, and first as a British plant. 
Gr. secalin. majus sylvaticum, R. 
2. Ouse. Ardley Wood, Sib., Elymus europeus, L. 
7. Thames. Stokenchurch, Bobart in Ray, i. and Morison, iii. 1696. 
Oxford reference in Sm. Fl. Br., Eng. Fl., Bot. Guide, N. B. G. 
Hudson, ete., specimen in Sherard’s herb. found by Bobart in 
Stokenchurch Woods! Henley, Gough, ed. ii. Penley Hangings, 
Bz.! Nettlebed, Goring, H. Bos./ Watlington, Mongewell, 
Nuffield, Sunley Wood, Aston Wood. 
Berks. Bisham Wood! Bucks, Gloster E., Northants. 
E. murinum, L. Wall Barley. 
Top. Bot. 506. Syme, HE. B. xi. 194. 1822. Nym. 838. Bx. 344. 
Native. Viatical. Waste places, roadsides, especially about villages. 
Common and generally distributed. B. June, July. 
First record, Sid. 1794. 
H. secalinum, Schreb. Meadow Barley. 
H. pratense, Huds. 
Top. Bot. 505. Syme, E. B. xi. 193. 1821. Nym. 838. 
Native. Pratal. Meadows and pastures. Locally common and re- 
corded from all the districts. P. July. Plentiful in the Marston Meadows. 
First record, Sib. 1794, H. pratense. 
* * Secale cereale, D. Rye. 
Alien. Occurs casually by field-borders and waste places, but is not 
persistent. 
TRITICUM. L. 
T. repens, L. Twitch. Couch Grass. Agropyron, Beauv. 
Top. Bot. 502. Syme, E. B. xi. 178. 1810. Nym. 841. Bx. 112. 
Native. Agrestal. Cultivated ground, field- borders, hedges, etc. 
Abundant. P. June. 
Occurs too frequently in all the districts, but is much less abundant on 
the chalk. 
First record, 81d. 1794. 
