298 chakacejE. 



Clear streams. A. April. 



1. In Hobson's Conduit stream, near the Nine Wells. 

 In ponds by the side of the lane leading to the Park Wood, 

 Wood Ditton; H. — 3. At one mile on the road from Has- 

 lingfield to Barton. Near a spring in Eversden Wood; Relh. 

 — 4. Knapwell!; Mr J. B. Wilson. 



5. C. vulgaris Linn. 



Equisetum fmtidum sub aqua repens, B. C. 48. ffippuris 

 fcetida, M. M. 13. G. vulgaris, M. PI. 26. Belh. 3. 



Ditches and streams. A. June to August. 



1. In Hobson's Conduit stream, Cambridge. Brinkley. 

 — 2. Sawston Moor; N. — 3. Brick-pits, Gamlingay. Hard- 

 wick. Toft. Haslingfield. Cambridge. Coton. (The cele- 

 brated petrifying spring at Coton was full of this plant. It 

 was situated on the side of the hill above the road from 

 Coton to Barton Toll-gate.) — 5. Wicken, Bottisham and 

 Snail well Pens. Swaffham Bulbeck. — 6. Witcham. 



6. C. hl'spida Linn. 



C. tomentosa, M. PL 26. Belh. ed. 1, 348. C. hispida, 

 M. PI. 26. Belh. 3. 



Pen ditches. A. May to August. 



1. Near the Old Mill, Pulbourn. Teversham Moor; 

 W. H. C. — 2. Moor near Shelford; Belh. — 3. Sheep's Green, 

 Cambridge. Pit near Kingston Wood. — 4. Pits near the 

 Observatory. Waterbeach Fen. — 5. Bottisham and Wicken 

 Pens.— 6. Witchford. Witcham.— 7. Doddington Turf-fen. 



