258 NOTES ON CAMBRIDGESHIRE PLANTS. 



Burkill. — L. polyrrhiza L. 3. Pit near the spriug-head at Hard- 

 wick. 



Triglochin paliistre L. 2. N.W. end of Dernford Fen, abundant. 



5. By ditch near river S.W. of Fen Ditton. 



Potamogeton naUvns L. 5. Pond S.E. of Kennet Heath; pit 

 near La Hague Hall, S.E. of Chippenham; Chippenham Fen. — 

 P. crispus L. 5.* Ditches near Biggin and White Hall. — P. pusUlus 

 L. 4. With ZcumicheUia palustris L. in a ditch between Milton and 

 the river, E. of the railway. 



Eleocharis acicularis R. Br. 7.* In 1895 the submerged form 

 was plentiful in the Old Bedford River, S.W. of Mepal. — E. palustris 

 E. Br. 2r' N. end of Dernford Fen, abundant. 



Scirpus paucifiorus Lightf. 2. I found this growing sparingly 

 on Sawston Moor in 1895. It must now be extinct in all the other 

 localities given in the Flora. — 8. lacustris L. 3. Bourn Brook near 

 Fox's Bridge, Comberton, and above there towards Toft. G/'' Ros- 

 well Pits, Ely. — S. Caricis B,etz. 1. Exterminated through drainage 

 in the Cambridge locality. There is now no recorded station in the 

 county in which the plant is known to exist. 



Erioplwrum latlfolium Hoppe. This, too, is extinct in both its 

 recorded Cambs localities ; but some years ago Prof. Potter found 

 it in Chippenham Fen (5). 



Cladium jamaicense Crantz. 5. Still plentiful iu Chippenham 

 Fen — doubtless Relhan's " Chippenham Moor," italicized in the 

 Flora. 



Carex disticha Huds. 2. Plentiful at the N. end of Dernford 

 Fen. — C. dlvulsa Good. 3. Lane between Trumpington Church 

 and the river. — C. ovalis Good. 1.* Sparingly on one of the 

 Hildersham Furze Hills, 1895. 5.* Wicken Fen. Apparently rare 

 and local in the county ; as yet it is unrecorded from the whole of 

 the northern half. — C. elata All. 2. Very fine near the railway in 

 Dernford Fen. 5. Plentiful in Wicken Fen, and Mr. G. C. Druce 

 and myself noted it in Chippenham Fen. — C. acuta L. 3.* Lord's 

 Bridge, near Barton. — C. ericetorum Poll. 1. I found this in very 

 small quantity on the Gogmagog Hills, 1895-6. The main reason 

 for its diminution was once given by Prof. Babington in this 

 Journal (1877, p. 85). The practice of carrying away the turf of 

 the Roman Road for use in Cambridge gardens still continues, and 

 threatens several of the Wool-street plants with extinction. The 

 only species not affected are Cnicus acaulis, Poterium Sangidsorba, 

 and Linum perenne, the last-named soon forming very fine plants on 

 the bared places. — C. verna Chaix. 2. Whittlesford ; Sawston 

 Moor. 3. Kingston. 4. King's Hedges. Unrecorded from Districts 



6, 7, and 8. — C. hmervis Sm. and C.flava L. 2. Dernford Fen. — 

 C. hirta L. 1. Moory pasture at N. end of Fleam Dyke; lane 

 by "The Rivey," Linton. 2.* Dernford Fen. 5. Pasture near 

 Biggin. 



Phalaris anmdinacea L. 2.* By stream S. of Shelford Station. 

 Milium effusum L. 3. Gamlingay Wood. Very local in Cambs. 

 Phleum phalaroides Koel. 1. Still on the Hildersham Furze 

 Hills, but no longer by the roadside near them. 



