PRUNUS l6l 



Ashampstead Common, where it is abundant, Frilsham. 

 Basildon. Yattendon. BncJilebury. Tilehurst. Sulham. 

 Oare. Standford. Dingley. AldAvorth. Compton. Ashridge 

 Wood. E. Ilslev. Moulsford. Unwell Wood, &c. 



4. Kennet. West Woodhay, Reeks in Briti, Contr. Wood near Snels- 



more, W. M. Rogers. Woolley Park. Wickham Heath. Alder- 

 maston. Silchester. Mortimer. Sandleford, Ufton. Padworth. 

 Wasing. Inkpen. Chilton Foliat. Lambourn. Woolhampton. 

 Theale. Tilehurst. Brimpton. Kintbury. Kiever Wood, &c. 



5. Loddon. Shinfield, Tufnail. Well. Coll. List. A conspicixous object 



aoiong the beeches near Park Place in the spring, Stanton. Ashley 

 Hill. Bowsey Hill. Cookham. Quarry woods. Bisham, 

 Swinley. Windsor Park. 

 P. avium occurs in all the bordering counties. 



P. Cerasus, Linn. Sp. PI. 474 p.p. (1753'). Wild Cherry. 



Top. Bot. 128. Syme, E. B. iii. 122, t. 412. Nyman, 213. Fl. Oxf. 91. 



Native. Septal. Hedges and woods. With a much less general area of 



distribution than the former species, it is locally common on the 



Chalk. Tree. April -May. 

 First recorded with certainty by Mr. H. Keeks in Britt. Contr. 187 1. 



2. Ock. Near Marcham, but in a form which is not quite typical, 



although much nearer to P. Cerasus than to P. avium. Witten- 

 ham Wood. 



3. Pang. Westbrook Copse, W. M. Rogers. Sulham. Basildon. 



Bradfield. Hawkridge Wood. In woods near Cold Ash Common. 

 Ashampstead. Hampstead Norris. Unwell Wood. Frilsham. 

 Aldworth. Tilehurst. 



4. Kennet. West Woodhay, Reeks in Britt. Contr. Mortimer, Tufnail. 



5. Loddon. Beeches, Wellington College, Penny. Park Place, not 



unfrequent, Stanton. Banks of Loddon near Sandford Mill, 

 Melvi:l. Ashley Hill. Quarry Wood. Hurley. Near W. Ilsley. 

 Bisham Wood, I believe some trees over forty feet high are of 

 this species, but I have not seen them in flower. Bowsey Hill. 

 P. Cerasus occurs in Bucks, Wilts, Hants, Surrey, and Oxfordshire. 



The odour of the flowers of P. Cerasus is more like that of the almond than 

 that of P. avium ^ which is rather more suggestive of hawthorn. Syme, in 

 English Botany^ describes the flowers of P. Cerasus as rather larger and more 

 open than those of P. avium., and of a firmer texture. Sir J. Hooker, in the 

 Student's Flora, says the corolla is cvip-shaped, while that of P. avium is open. 

 Syme, I believe, is correct. The petals of P. Cerasus are more deeply notched 

 than are those of P. avium. The leaves of P. Cerasus are mnch more irregu- 

 larly crenate-serrate, and of a firmer texture and more glabrous than those 

 of P. avium. 



[P. Padus, Linn. Sp. PI. 473 (1753). Bird Cherry. 



AUen. The P. Padus of Mavor's Agr. Berks is P. avium. Occasionally seen 



M 



