314 APPENDIX. 



The names of a few plants may be added which either are 

 now, or were formerly, natives of the Pens, although they hare 

 not been noticed in Wicken Fen. 



Senecio palustris. We learn from Ray and Relhan that this 

 plant was formerly found in several places. It is now believed to 

 be extinct. 



Sonchus palustris has not been found for many years. 



Utricularia minor. This probably grows in Wicken Fen, 

 for it is found in many parts of the Level. 



Populus nigra. Is supposed to have been a native of the 

 Fen country. Large trees of it are now common, but most, if not 

 all, of them have been planted. 



Myrica Gale, was formerly abundant in the Fens, as we learn 

 from Ray. 



Epipactis palustris. Abundant in the Fens according to 

 Ray. Still found in several places. 



Sturrnia Loeselii was very plentiful in the years 1835 and 

 1836 near Reche, but is now extirpated there. It is doubtful if 

 this plant still exists in our Fens. 



Potamogeton pusillus, and 



P. rufescens, and 



Chara flexilis, and 



C. tenuissima, are found in other places. 



No. IX. List of lost Plants. 



The following list contains the names of those plants which, 

 although recorded upon good authority as natives of Cambridge- 

 shire, have not been found there for very many years. 



Thlaspi arvense. Vicia sylvatica. 



Sysymbrium Irio. Lathyrus Mssolia. 



Lepidium latifolium. Prunus Cerasus. 



Drosera intermedia. Pyrus torminalis. 



D. anglica. Sedum Telephium. 



Frankenia lsevis. 8. album. 



Dianthus Caryophyllus. S. sexangulare. 



Geranium rotundifolium. S. rcliexum. 



