AKISTOLOCHIACE.E. 207 



Chalky places. P. June, July. 



1. Gogmagog Hills. Devil's Ditch. Allington Hill. 

 Furze Hills, Hildersham. Sawston ! ; N. In a pit between 

 Himton and Fulbourn ; J. M. Teversham; Belh. — 2. New- 

 ton. To the east of Chrishall Grange. Ickleton ; G. S. G. 

 Boyston; D. B. Odsey; A. M. B. Triplow; J. M. — 

 5. Devil's Ditch. Snailwell Heath. Bottisham; N. Exning; 

 E. S. Chippenham; Belh. 



ARISTOLOCHIACEjE. 



Aristolochia Linn. 



*1. A. Clematitis Linn. Birthwort. 



B. C. App. ii. 2. M. PI. 20. Belh. 368. A. C. affici- 

 narum, M. M. 74. 



Naturalized near ruins. P. July, August. 



1. In several hedges at Whittlesford; Dent. — 4. Mil- 

 ton; Belh. 



EUPEORBIACE^E. 



Euphorbia Linn. 



1. E. Helioscdpia Linn. Sun Spurge. 



Tithymalus helioscopius, R. C. 163. M. M. 70. E. He- 

 lioseopia, M. PL 11. Belh. 191. 



"Waste and cultivated ground. A. June to September. 

 Thinly spread throughout the county. 



2. E. platyphylla Koch. 



Tithymalus segetum longifolius, B. C. App. ii. 17. M. M. 

 70. E. segetalis, M. PL 11. E. verrucosa, Belh. ed. 1, 186. 

 E. platyphylla, Belh. ed. 3, 101. 



Arable land. A. June to August. 



