FLORA OF OXFORDSHIRE. II 
This appears to be trichophyllus with floating leaves. In Warwick 
only. 
BR. peltatus, Fries. 
Batrachium peltatum, Pr. Fl. [Nym. 15]. R. truncatus, Dumort. 
Ri. floribundus, Bab. 
Native. Ponds, ditches. Local. April—July. 
First record, Sir Jos. Banks, 1760, circa. 
2. Ouse Ardley, Hethe. 
3. Swere. Broughton. 
4, Ray. Marston Lane, heterophyllus, Sib. Rousham. 
5. Isis. Near Oxford, Jos. Banks, Hb. Br. Mus. South Leigh, Sid. 
heterophyllus, Abundant in the Upper Thames as floribundus. 
6. Thame. Albury. 
7. Thames. Crowell Hill, Hd. Br. Nettlebed, floribundus, A. Fr. 
Woodcote, truncatus. Nuffield, Binfield, Chinnor, Stokenchurch, 
Ibstone, Lane End, floribundus. 
Berks. Wokingham, Watson. IIsley, truncatus. Sonning, Hb. Br. 
Mus. Rudge, floribundus. 
Bucks, Northants, Warwick, Gloucester. 
This is the characteristic Ranunculus of the Chilterns, the large white 
flowers being abundantly produced in almost:every part. The separation 
of floribundus and truncatus has not been attempted—the characters 
appearing inconstant. Some peltatus forms approximate to heterophyllus, 
Fries. in leaf cutting; a starved form with small flowers, wanting the 
parenchymatous leaves, occurs on the muddy margins of ponds, and 
probably is R. cespitosus, Th. Another form, occurring in the Thames, 
with long peduncles, may be the R. elongatus, Hiern; and another form 
occurs without floating leaves, not the submersus of Bab., which is a form 
of heterophyllus. 
Ranunculus penicillatus, Dum. 
Batrachium penicillatum, Dum. R. pseudo-fluitans, Bab. Syme, E. B. 
i. 20. 
Native. Canals, ditches, and rivers. May-July. 
First record, W. 7. 7. Dyer, 1871. Journ. Bot. ix. 
2. Ouse. Mixbury. 
4, Ray. About Oxford, Dyer. Marston, Islip, Heyford. 
5. Isis. Wytham, R. Thurland. Handborough, Eynsham. 
6. Thame. Imffley, Sandford. 
7. Thames. Caversham, J. French. In the flowing spring. Sonning, 
jn an unusually fine state; no floating leaves. ep. of Ree. 
Club, 1883. 
Berks. Kennington, Abingdon Canal. Northants, Nene, Warwick, 
Gloucester, near Lechlade. 
