250 NOTES ON CAMBRIDGE SHIEE PLANTS. 



CochUaria Armoracia L. 1. Flowering abundantly in an old 

 chalk-pit at Linton, 1895. 3.* Gamlingay to White Wood, in 

 flower, May, 1895. 



Sisymhrium Sophia L. 2. Between Dernford Mill and the 

 Sawston Road, 1895. 3. By the Barton Road at 1^ miles from 

 Cambridge. Waste ground near the C.U. bathing-sheds. 4. Oj)- 

 posite Upware ; near Milton. 5. Bottisham Lode, 1892 ; /. H. 

 BurldU. 6. Above Roswell Pits, Ely. 



Dlplotaxh muralis DC. 1. Still in the original locality at the 

 Wort's Causeway gravel-pits. It now occurs in several places 

 about Cambridge and Ely and towards Newmarket, but is not nearly 

 so general as it is further south. 



Lepidium Draba L. 5." By White Hall, near Ditton, 1894; 

 I. II. BurkilL 



Thlaspi arvense L. 1.* Abington Park; A. H. Evans. 2.''' 

 Railway embankment, Dernford Fen, 1896 ; I. H. Burkill. These 

 are the only records since Relhan's time. The species is curiously 

 rare in the county, and then more of a casual than a colonist. 



Dianthiis deltoides L. occurs on both furze-hills at Hildersham (1). 



Saponaria ojficinalis Ij. 5. Fordham village; I. H, Burkill. 



Silene anglica L. A very curious mistake occurred in printing 

 the Flora, by which the localities for S. Otites appeared under this 

 species, and S. Otites was omitted altogether. Babington's own 

 locality for S. anglica was " 5. To the east of Chippenham" (Spn. 

 in Herb. Bab. from Chippenham, Cambs., 29 July, 1852). — S. Otites 

 Wibel. 5. Plentiful at the Chippenham gravel-pit, 1894-6 ; and 

 close to the county boundary between Fordham and Freckenham, 

 1896. — S. noctiflora L. 1. By Borley Wood. 3. By the Barton 

 Road. 



Lychnis dioica L. In the Flora this is said to be absent from 

 the county. It may be so now, but in the University Herb. I have 

 seen a record of its occurrence close to the Herts and Essex borders 

 about thirty years ago (doubtless that referred to in Top. Bot. ed. 2, 

 p. 67; and in Gibson's Flora of Essex, p. 46). The absence of this 

 plant and of Melica uniflora Retz. and Oxalis AcetoseUa L. from the 

 W. Cambs. woods is remarkable. 



Stellaria aqiiatica Scop. 2. Dernford Fen, near the railway. 

 3. Near the bridge, Harston. — S. Holostea L. 1. Lane below 

 "The Rivey," Linton. 4.* Madingley Wood, S.W. corner.— 

 8. palustris Retz. 4.* Ditch E. of Waterbeach Station, towards 

 the river. 



Arenaria tenidfolia L. 2. Wall at Sawston ; the var. laxa 

 (Jord.). — A. trinervia L. 2. Sparingly by the railway in Dernford 

 Fen. 3. Lane between Trumpington Church and the river, near 

 the bridge. A rare plant in Cambs. 



Sagina apetala L. 3. On the churchyard wall, Coton, 1896. — 

 8. nodosa Fenzl. 2. Dernford Fen, W. of the railway. 7. Pas- 

 tures immediately S.E. of the bridge at Horseway. 



Mr. Burkill informs me that the Lepigonum medium of the Flora 

 (p. 85) is probably Buda marina Dum. var. neglecta (Kindb.). 



Hypericum elodes L. grew until recently by the stream near 



