FLORA OF OXFORDSHIRE. 5 
Reich. Ic. 4640, is the usual form. TZ. ripariwm, ditch side, Caversham, 
F. Tufnail. 
Dr. Maxwell T. Masters refers in his paper on the Oxford Flora to the 
extinction of Thalictrum majus. I can find no trace of its having been 
recorded. 
RANUNCULUS. L. 
vv BR. Ficaria, L. Lesser Celandine, Pilewort. 
Ficaria verna Huds. Top. Bot. 11. Syme, E. B. i. 47. 39. Nym. 7. 
Native. Septal. Damp places. Common and generally distributed. 
P. March-June. First record, Sid. 1794. Unlocalised. 
In all the districts; about Oxford with Acidium confertum and Uredo 
Ficarie, DC. Ba. MSS. var. incumbens, F. Sz. Mag. Col. Meadows, 
Hb. Br. Mus. Dyer, Kirtlington, Marston, etc. The common form is var. 
divergens, F. Sz., but the two vars. seem connected by a gradation of 
forms. Under the wall of Trinity garden is a form producing bulbils in 
the leaf axils above the ground: a similar form is noticed in the Flora of 
Middlesex, p.17. The plant rarely produces seed. The leaves vary con- 
siderably in outline. 
/: R. repens, L. Creeping Buttercup. 
Top. Bot. 13. Syme, E. B. i. 40. 34. Nym.11. Native. 
Agrestal. Viatical. P. Common and generally distributed May-August. 
First record, Sib. 1794. Unlocalised. 
Has been noted in all the districts. Two forms—probably owing their 
difference to their localisation (i.e. shady ditches and damp apoE and 
cultivated ground)—have been observed. 
V BR. acris, L. Buttercup, Meadow Crowfoot. 
Top. Bot. 13. Syme, E. B. i. 37. 33. Bx. 302. Nym. 13. 
Native. Pratal. P. Meadows, pastures, abundant. June-August. 
First record, Sid. 1794. Unlocalised. 
Common in all the districts: two or more forms occur. A plant of the 
Chalk downs I suspect to be R. Steveni, Reich, from its elongated root- 
stock and a similar form has been noticed on dry sandy ground near 
Elsfield. The usual meadow plant is probably R. tomophyllus, Jord., a 
large, erect plant, with premorse rootstock. A form with slightly double 
flowers of R. Steveni was noticed at Woodcote. 
B. auricomus, L. Goldilocks, Wood Crowfoot. 
Top. Bot. 12. Syme, E. B.i. 36.32. Nym. 12. 
Native. Sylvestral. P. Woods, hedgerows, etc. Locally common. 
April-May. 
First record, Sib. 1794. Unlocalised. 
1. Stour. Tadmarton. 
2. Ouse. Ardley, Mixbury, Hethe. 
