222 THE ALGA-FLORA OF CAMBRIDGESHIRE. 
179. T. rerraconum (Nag.) Hansg. *var. InsERME wiles in Bih. 
till Sv. Vet.-Akad. Handl. Bd. 8, no. a 12, t.1 Small 
pret diam. 13°5-18°5 uw; crass. 9°5 p. Gaiauiie Fen. 
T. caupatum eng Hansg. Syn. Polyedrium pentagonum 
Heinach. 3. Wimpole 
181. T. reGuLaRE ae Syn. Polyedrium tetraédricum Nag. 
5. Chippenham Fen. A _ minute form; diam. sine spin. 8 p, 
cum spin. 14. 8. Guyhir 
182. STERIAS Loneispina (Perty) Reinsch. Syn. Polyedrium 
longispinum Peis 8. Ditch, St. John’s College ‘‘ backs,” Cambridge. 
_ Subfam. Cuaraciex. 
*183. CHaracium susutatum A. Br. 8. Wimpole Park. 
184. C. mmnurum A. Br. 2. Dernford Fen, 1 mile S. of Shelford. 
*185. C. ampiguum Herm. 5. Wicken Fen. 6. Near Ely. 
186 ETEROMORPHUM Reinsch. Syn. Hydrianum hetero- 
pg hae Reinseh 8. Sheep’s Green, Cambridge ; Hardwick. 
187. C. tonerres Rabenh. 38. Sheep’s Green, Gamboa 
188. C. onnitHocePHatum A. Br. 5. yeonen Fen. 
Subfam. EnpospHmRez. 
one rae ete Lemnz Cohn. 6. Near Sutton, on Lemna 
pee 
Subfam. TreTrasPorREz. 
191. Scuizocuiamys peticatuLa West. 5. cog s ee Cam- 
id June, 1895. 5. geome Fen: Aug. 
Apiocystis Braunitana Nig. 2. Dernford ay 1 mile 8. of 
Shelford Aug. ig very fine. 3. Hardwi ck. 5. Wicken Fen. 
6. Roswell Pits, Ely 
3. Trrraspora Genatinosa (Vauch.) Desv. 1. In the ditch by 
the Botanical Gardens, Trumpington Road, Cambridge: June, 1897. 
Subfam. easier aes 
194. Borryoccus Braunn Kiitz. 8. Sheep’s Green, Cambridge. 
7. The Washes, Sutton, and Sation West Fen. 8. Twenty-foot 
River, between March and Gu uyhi 
INEFFIGIATA NEGLECTA aan G. 8S. West. 2. = 
ant. 
pole Park. 5. Wicken Fen. 6. Roswell Pits, Ely. 7. Ponds S. of 
March. 8. Twenty-foot River, between March and Guyhirne. 
