839 



Alisma ranunculoides. Ditches at Sawston Schcenus nigricans. Abundant at Sawston. 



*Sparganium simplex. Ditto at Chesterford Scirpus sylvaticus. In a rivulet at New 



Lemna gibha and Potamogeton pusillus. At Sampford. 



Sawston. *Cladium Mariscus and * Eriophorum pti- 



Lilium Martagon. In an old coppice hedge hescens. At Sawston. 



and in a wood at Sampford, where it Carex muricata. Near Chesterford. 



has grown for at least thirty years, CLJderi and ovalis. Meadows at 



and probably a much longer time. Sawston. 



*Muscari racemosum. Near Sawston. Lolium multiflorum. Fields occasionally. 



Triglochin palustre. Weudon & Sawston. Equisetum limosum. At Linton. 



*Epipactis palustris. At Sawston. Asplenium Adiantum-nigrum. Old trees. 



Those plants marked with an asterisk, I have not found growing, 

 but have seen specimens which are stated to have been gathered in 

 the localities specified. 



Whether the CEnanthe found in fresh- water marshes will prove a new 

 species distinct from pirapinelloides, is at present uncertain ; but the 

 specific differences between it and the salt-marsh plant appear slight. 



Chenopodium rubrum and Salix Hoffmanniana, which are marked 

 in the former list with a note of interrogation (Phytol. 413), have since 

 been seen ; the first at Sawston, the other at Audley End. 



Tragopogon pratensis (Id. 411), should have been entered as T. 

 minor, and Habenaria bifolia (Id. 414) as H. chlorantha. Cuscuta 

 europaea has not been found here ; the specimen on the authority of 

 which it was inserted, was gathered some years ago, and proves on 

 examination to be C. Trifolii. 



I also feel some doubt as to whether Luzula Forsteri has been found 

 here ; and of a pennanent locality for Mentha viridis. 



G. S. Gibson, 



Saffron Waldeu, November, 1843. 



Art. CXCII. — Varieties. 



415. Correction of an error in the description of Equisetum Tel- 

 mateia. In my description of this species (Phytol. 723) I have made 

 this observation : — " Mr. Watson, in one of the passages above refer- 

 red to, states that horses graze on it (Phytol. 588)." By a reference 

 to this passage it will be seen that Mr. Watson remarks that " it is a 

 notion among the rustics of Cheshire that horses get bogged by their 

 endeavours to graze on this plant," &c. I beg to offer my thanks to 

 Mr. Watson, for calling my attention to this inaccuracy. — Edward 

 Newman; Hanover St., Peckham, November, 1843. 



416. What is the Polypodium fragrans of Linneus ? This fern is 

 absent from nearly all our descriptive lists. Wahlenberg, Roth, De- 



