220 THE ALGA-FLORA OF CAMBRIDGESHIRE. 
Order ProtococcowEs. 
am. VOLVOCINES. 
. Gontum pectoraLE Miiller. 3. In ditch, St. John’s College 
: backs,” Cambridge ; Sheep’s Green, Cambridge. 5. Burwell Load. 
- Panporiva Morum (Miill.) Bory. 8. Sheep's Green, Cam- 
ridge; Hardwick. 6. Roswell Pits, Ely. 7. The Washes, Sutton ; 
ditches and aie about March, in immense parry Aug. ie 
153. Cutamypomonas Punviscunus (Miill.) Ehrenb. 5. Chi 
ham Fen. 6. In pondsnear Ely. 7. Near March; Sutton pa veh 
154. Hxmarococous tacusrris (Girod.) Rostaf. Syn. Chlamydo- 
coccus pluvialis (Flot.) A. Br. 5. Wicken Fen. 6. Roswell Pits, Bly. 
Fam. PatMELLACE2. 
Subfam. Canosiez. 
. Canastrum cusicum Nag. 5. Wicken Fen, amongst Uéri- 
orn vulgaris, 
156. C. spHaricum Nig. 38. Wimpole Park. 5. Wicken Fen; 
ae Load. 6. Roswell Pits, Ely. 7. The Washes, Sutton. 
157. C. putcHrum Schmidle (Berichte d Deutsch. Bot. Gesellsch. 
Ba. x. 1892, 206, t. xi. f.1; Ber. d. Nat. Gesellsch. zu Freiburg 
i. B., Bd. vii. H. 4, 12, t. ii. f. 10). 7. The Washes, Sutton, and 
Sution West Fen. 
158. Pepiastrum Boryanum Gees )Menegh. 2. Dernford Fen, 
1 mile 8. of Shelford. 38. Sheep’s Green, Cambridge; Lord’s 
Bridge. 5. thea Wicken Fen. Roswell Pits, Ely. 
(2 Sutton West Fen. 8. Twenty-foot River, between March and 
Guyhirne. 
Var. eranutatom (Kiitz.) A. Br. 7. Sutton West Fen. 
159. P. constrictum Hass. 5. Wicken Fen. 6. Roswell Pits, Ely. 
160. P. pupLex E Mayan: Syn. P. pertusum Kiitz. 5. Wicken Fen. 
‘bs eps West F 
P. TETRAS Seah Ralfs. Dispositio Beate 4: 
Rosweli Pits, Ely. Dispositio cellularum 1 + 7:— __ Wioken ton 
- Ponds about Ely. 
162. P. iwrecrum Nig. 7. Sutton West Fen. 
163. CruciGENnIA RECTANGULARIS (Nag.) A. Br. 5, Wicken Fen, 
very fine, 1896 and 1898. 6. Roswell Pits, Ely. 
*164. C, wae Morren. 5. Chippenham Fen: families of 
sixteen cells. 7. The Washes, Sutton. 
Subfam. Pseupocmnosiex 
~ at a conFervicota Nag. 3. pba s Green, Cam- 
bridge: June, 1898 
Subfam. Ruarawiex. 
166. Dactynococcus inrustonum Nig. 6. aa 
' 167. ScenepEsmus sisucarus (Turp.) Kiitz. Syn. 8. obtusus 
Meyen. 2. Dernford Fen, 1 mile 8. of Shelford. 8. Hardwick ; 
