rl4 Origin. of the British Flora. 
PRUNUS DOMESTICA, L. 
Neolithic :— 
Crossness, Essex (upper peat). 
In ‘Etudes d’Ethnographie Préhistorique. —II. Les 
Plantes cultivées de la Période de Transition.au Mas-d’Azil, 
(Anthropologie, Vol. VIL, No. I., pp. 1-24), Monsieur Ed. 
Piette has given a good, account and figures of the early 
cultivated species of Prunus. We have not yet obtained 
in Britain sufficient material for a similar analysis. 
PRUNUS AVIUM, L. 
Neolithic :-— 
Crossness, Essex (upper and lower peats) ; Gayfield, 
Edinburgh. 
Interglacial :— 
West Wittering, Sussex ; Selsey, Sussex. 
PRUNUS PADUS, L. 
Neolithic :— 
Northampton; Hornsea, Yorkshire; Sand le Meer, 
Yorkshire ; Hailes, near Edinburgh. 
Interglacial :— 
Selsey, Sussex ; Airdrie, Lanarkshire. 
Recorded from the Pine and Oak Zones (Neolithic) in 
Sweden (Gunnar Andersson). 
SPIRZA ULMARIA, L. 
Roman Period :— 
Silchester, Hampshire. 
Neolithic :— 
iJailes, near Edinburgh ; Redhall, near Edinburgh. 
