I860.] EXTRACTS FROM CORRESPONDENCE. 341 



pairs^ as builders say. The butts are erected or erecting on the 

 slope of the ravine which is furthest from Putney, and the lower 

 part of the bog is drained^ bridged, etc. The rarest plant ob- 

 served in this corner at Horton is Stellaria glauca ; Anacharis 

 Alsinastrum would have been deemed one of the rarissimae (the 

 very rarest) a dozen years ago. Unhappily it is now too com- 

 mon in water about Horton, as everywhere else. This summer 

 (August, 1860) it was flowering profusely. 



Scutellaria galericulata, a very handsome if not a rare plant, 

 grows here, and also along the banks of the Colne. 



Hydrocharis Morsus-rana abounds everywhere in the ditches ; 

 and Hottonia palustris is not very far distant, probably near the 

 village ; certainly between Horton and Staines. 



(Enanihe peucedanifolia, which has perished in Battersea 

 Fields (?), was once believed to grow in a meadow on the right- 

 hand side of the road to Wraysbury station, nearly opposite the 

 place where the Stellaria glauca, etc., grow. This plant, viz. the 

 (Enanthe, will probably^ when examined and identified, turn out 

 to be only a large form of CE. fistulosa. 



There is no doubt about (E. fluviatilis, Coleman, being a plant 

 of Horton. Whether it be specifically distinct from the known 

 British species of this genus, or non-distinct, it is easily recog- 

 nizable from all of them by its appearance and habit. 



I have seen several examples of this (Enanthe, and all of them 

 in running water, which rises in Herts or passes through this 

 county. Is this plant known anywhere else in England, except 

 in the counties of Herts, Bucks, and Middlesex ? 



It has also been observed that this plant rarely flowers. It 

 often produces abundance of radical leaves, sometimes throws up 

 a stem, but its flowers and fruit are desiderata with your corre- 

 spondent. Perhaps the reverend author of the ' Flora Hert- 

 fordiensis,' or Mr. E. Edwards, could enlighten some of their 

 brethren by giving information about the history, habits, and 

 economy of the plant. 



Has it been detected in England only ? Or is it known on 

 the Continent? 



Some months ago, — above twelve, — a correspondent from near 

 Ross, in Herefordshire, sent to the writer of this account of the 

 plants of Horton an (Enanthe which was apparently distinct from 

 all the British species of this genus. This plant, which was alive 



