TTPHACEiE. 245 



SparoaNIUM Linn. 

 1. S. ramdsum Huds. Bur-reed. 



E. C. 158. M. M. 113. Eelh. 376. S. ereetwm a, 

 M. PI. 21. 



"Wet ditches and ponds. P. July. 

 Common throughout the county. 



2. S. simplex Huds. 



S. non ramosum, B. C. 159. M. M. 113. S. erectum /?, 

 M. PI. 21. S. simplex, Eelh. 376. 



"Wet ditches and ponds. P. July. 



1. Wilbraham Fen. — 3. Brook by the Barton road. 

 Near Toft bridge. Ditches by Grantchester foot-path. 

 Kingston; Long Stow; Barrington; N. — 4. Waterbeach 

 Pen. By the river above Olayhythe. — 5. Snailwell Pen. — 

 6. Ely. Stretham Fen!; H.— 7. "Vermuden's Drain, Chat- 

 teris. 



3. S. minimum Fries. 



S. natans, Eelh. ed. 1, Suppl. ii. 16; ed. 3, 376. 



Figured in English Botany (tab. 273) from a specimen 

 sent from Bur-well Fen by Mr Hemsted. 



Wet ditches. P. July, August. 



1. Wilbraham Fen. — 2. Peat-holes, Triplow. Sawston 

 Moor; Eelh. — 5. Burwell, Bottisham, and Wicken Fens. — 

 6. Ely!; W. M. Aldreth. 



ASACBjE. 



A'corus Linn. 



X 1. A. Calamus Linn. Sweet Mag. 



A. verus sive Calamus officinarum, E. Syn. ed. 1, 206. 

 A. Calamus, Lyons, 30. M. PI. 8, and 28. 



21—3 



