6 FLORA OP CAMBRIDGESHIRE. 



9. R. SCeleratuS Linn. Celery-leaved Crowfoot. 



B. aquatilis rotundifolius, R. C. 130. M. M. 56. B. sce- 

 leratus, M. PI. 12. Belh. 222. 



By ditches and ponds. A. June to September. 



1. Empty Common, Cambridge. "Wood Ditton. Hinton. 

 Wilbraham. West Wratting.— 2. Pond at Kneesworth 

 House; D. B. — 3 and 4. Abundant. — 5. Wicken, Snailwell, 

 and Bottisham Fens. Horningsey. — 6. Ely. Aldreth. — 

 7. Doddington Turf-fen.— 8. Elm. "Wisbech. 



10. R. Flsimmula Linn. Lesser Spearwort. 



B. Jlammeus minor and B. f. serratus, R. C. 131. M. M. 

 57. R Flammula, M. PI. 12. Kelh. 221. 



Wet places. P. June to August. 



Probably common in such spots throughout the county. 

 It has been found in all the districts, and is abundant in the 

 Fens. 



11. R. Lingua Linn. Greater Spearwort. 



B. Jlammeus major, R. C. 131. M. M. 56. B. Lingua, 

 M. PI. 21. Relh. 221. 



Marshes and Fens, rare. P. June, July. 



1. By Quy water. Shelford; H. Teversham Moor; 

 Ray. — 2. Triplow peat-holes. Sawston Fen, but perhaps 

 now lost; G. S. G. — 3. Gamlingay ; Belh. — 5. Bottisham 

 and Wicken Fens. Swaffham Prior ! ; H. Swaffham Bul- 

 beck. Quy Fen; S. W. W. Anglesey Abbey. — 6. Ely. 

 Near Sandy's Cut; N. Streiham and Aldreth ; Relh. 



12. R. Fica'ria Linn. Pilewort. 



Chelidonium minus, R. C. 33. Ficaria, M. M. 60. 

 Ficaria verna, M. PL 13. R. Ficaria, Relh. 222. 

 Common in damp shady places. P. April, May 

 Found in all the districts. 



