IZ3 



Additions to the Flora of Surrey. i&- 



Orobanche Picridis in some plenty near Witley. Mr. Bennett, 

 ■who has paid much attention to these plants, believed it to be 

 the true Ficridis on seeing a fresh specimen, and it appeared to 

 me to be quite the same as the Kentish plant. The plant has 

 been several times recorded, but I think Mr. Marshall's the only, 

 at present, undoubted station, although one other may be right. 

 Mr. H. T. Mennell has found Pyrola minor, the lesser winter 

 green, and also Carex strirjosa, in the neighbourhood of Oxted, 

 and we now have both of these plants in three districts. 



In the Aldershot district I found, last year, very poor and late 

 examples of Batrachium intermedium; and this year, on going 

 earlier, found it in great abundance. It is common in some 

 parts of Hants, but has never been abundant in its old Surrey 

 localities near Esher, where Messrs. Groves found it to be nearly 

 extinct some years since. On gravelly places near the canal I 

 gathered this spring Cerastium tetrandum, very rare as an inland 

 plant, and previously perhaps scarcely a certain native of Surrey. 



There is one plant I may briefly allude to, as we ought to find 

 it in Surrey, viz., Callitriche trimcata. This was until recently 

 only known as British from old Sussex specimens in Borrer's 

 herbarium. While going through this herbarium last spring, to 

 extract Surrey records, I was surprised to see a specimen of the 

 same plant, collected by the late Gerard Edward Smith "in the 

 stream at Westerham." I found the plant at Westerham this 

 summer, and feel little doubt that it is truncata, although it 

 would be more satisfactory to get the plant in fruit, which has 

 not yet been done. The only other plant resembling it is C. 

 autuinnalis ; but this is a northern form, not known south of 

 Cheshire, and all the probabilities are in favour of the Kent plant 

 being the same as the Sussex one. As the bulk of Surrey lies 

 practically between the two stations, there is a very fair chance 

 of the plant turning up in our county. It is easily distinguished 

 at a glance from the common species of our ponds and ditches by 

 the leaves being dark-green and pellucid, instead of pale green 

 and opaque. Occasionally the common species become dark 

 green or even black through incrustation, but, under those 

 circumstances, instead of being pellucid, they are more opaque 

 than in the normal state. 



In conclusion, I will record the result of a few additional 

 investigations respecting the bur-reeds, Spargcmium ramosum and 

 jS. neglecium. I have now succeeded in raising several plants of 

 typical S. neijlectum from seed, thus showing that it is not merely 

 a sterile state of ramosum, which had seemed to me possible, 

 though not very probable. The seeds which germinated were 

 collected in a ditch last April, where they had therefore been 

 lying since the previous autumn. It is therefore probable that 

 the seeds of these plants always lie dormant throughout the 



