2,60 FLORA OF OXFORDSHIRE. 
Orv. LXV. ARISTOLOCHIES, E. 
[Asarum europeum, L. Asarabacca. 
Top. Bot. [23]. Syme, E. B. viii. 90. 1249. Nym. 645. Bx. 250. 
Extinct. Woods. cc 
5. Isis. Eynsham Commom, Parkinson’s Theatrum, 1640. Extinct. 
Wild near Oxford, Sowerby’s Herb., Rev. Dr. Abbott. 
‘Mountainous woods, rare between Henley and Maidenhead. The 
drawing in Z. B. from plant from this locality collected by Dr. Abbott, 
1802,’ either in Bucks or Berks. 
‘Bucks, Berks, with Oxford more dubiously,’ Comp. Cyb. 613.] 
* Aristolochia Clematitis, L. Birthwort. 
Comp. Cyb. 557. Syme, E. B. viii. 91.1250. Nym. 645. Bx. 28. 
Denizen. Waste places, hedges near ruins. Rare. Sh. June—Sept. 
First record, 87d. 1794. 
5. Isis. Godstow, Sid., also with Tipula pennicornis, 1812, Bx. Journ. 
Bot. vol. ix., Dyer, see Rep. of Rec. Club, 1880! 1885. Kencott, 
Dr. Goodenough in Bot. Guide. 
6. Thame. Studley Priory, R. Walker. 
Berks. Ina hedge near Windsor, Mr. Gotobed. 
(Empetrum nigrum, L. Crowberry. Sutton Park, Warwick.]} 
Orp. LXVI. EUPHORBIACEA, A. Juss. 
* Buxus sempervirens, L. Box Tree. 
Syme, E. B. viii. 95. 1252. Comp. Cyb. 558. Nym. 646. Bx. 42. 
Alien. Occurs only as a planted shrub. April, May. 
It is well naturalised at Bayswater and Goring. 
Berrockshire que paga taliter vocatur a ‘berroc’” sylva ubi buxus 
abundantissime nascitur, Asser’s Life of Alfred, Phyt. iv. 873, 0. s. 
MERCURIALIS. L. 
M. perennis, LD. Dog's Mercury. 
Top. Bot. 366. Syme, E. B. viii. 114.1268. Nym. 646. Bx. 143. 
Native. Sylvestral, septal. Woods, thickets, hedgerows. Common 
and generally distributed; less frequent in the Chiltern Woods. P. 
March-May. 
First record, Sib. 1794. 
Baxter found Uredo confluens on this plant about Oxford. 
* M. annua, L. French Mercury. 
Top. Bot. 366. Syme, E. B. viii. 115. 1269. Nym. 647. 
