296 THE ALGA-FLORA OF CAMBRIDGESHIRE. 
. S. caprrata Ehrenb. 3. Sheep’s Green, Cambridge: an 
eek pure eohinee was made in Oct. 1895; Wimpole Park. 5. 
Wic Si Fen; Chippenham Fen. 6. Roswell Pits, Ely. 
. 5. RADIANS (Kite. ) Grun. 3. Wimpole Park. 5. Burwell; 
Serenity Fen. 6. Roswell Pits, Hly. 8. Guyhirne. 
S. rametica Kiitz. 2. Dernford Fen, 1 mile §. of Shelford. 
Trumpington, ina ditch. 6. Near Ely. 
368. AsTeRtonrLLA Formosa Hass. 5. Wicken Fen. 
ad 
Fam. Fracinarine. 
369, Fraciiaria virescens Ralfs. 3. Wimpole Park. 
capucina Desmaz. 2. Dernford Fen, 1 mile 8. of Shel- 
Park. i 4. Histon. 5. Fordham; Chippenham Fen. 7. Sutto 
en. 
371. F. construrns (Ehrenb.) Grun. Syn. Odontidium Tabel- 
laria W. Sm. 5. Wicken Fen. 
Var. VENTER Van Heurck. 5. ween Fen. 
872. . mutapitis (W. Sm.) Grun. Syn. Odontidiwm mutabile 
W. Sm. 3. Sheep’s Green, Cambridge; Wirapele Park, 5. Wicken 
Fen. 7. Sutton West Fen 
Fam. MERInionipEez. 
873. Merrpion circunare (Grev.) Ag. 8. Coton. 5. Burwell ; 
Chippenham Fen 
Var. coxsTRIctoM Pag Van Heurck. Syn. M. constrictum 
Ralfs. 8. Wimpole P 
Fam. ae 
ATOMA — Bor Dernford Fen, 1 mile S. of 
Shelford. ry Ditch, St. i. Colléee ‘‘ backs,” River Cam, and 
Sheep’s Green, Cambrid ge. 6. Near Ely. 
Wimpole Park. 5. Burwell; Wicken Fen. 6. Roswell Pits, ‘nly 
7. og tio Fen; March. 8. Guyhirne 
temMaLE (Lyngb.) Heib. Benes Gdéntidiatin hiemale 
(Lyneb,) Kite if peyrede “ca a 
377. Denticuta tenurs Kiit Sheep's s tn Cambridge ; 
Trumpington ; ae Park. *s. Wieken 
Fam. TasELLARIEs. 
378. Tapettarra rLocoutosa (Roth) Kiitz, 5. Wicken Fen. 
Fam. SuriRELLiE®.. 
- Cymatopieura Euiprica (Bréb.) W. Sm. 5. Ditch, 
obit College ‘‘ backs,” and Sheep’s Green, Cambridge ; Aeer: 
ton; Orwell; Wimpole Park. 5. Wicken Fen; Chippenham Fen. 
6. Near ar Ely. 
