51. CUSCUTACE^. 183 



Range of mean annual temperature 52 — 48. 



Native. Ericetal (parasitic). The localities reported 

 for C. Epithyraum, as growing on clover, are omitted 

 above ; while Dr. Burgess's locality (Lightfoot's Flo. Scot.) 

 for so-called " C. europaea," on " furze bushes, near Mol- 

 L lance, in Galloway," is considered to belong to the present 



species. 



f, /^^^/-/yj. ^j-D 735. CuscuTA Trifolii, Bah. 



Area* 2 3 4 5* * *^ 10 11. 



South limit in Isle of Wight, Kent. 



North limit in Durham. 



Estimate of provinces 10. Estimate of counties 30. 



Latitude 50 — 55. English (?) type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in Channel province. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 51 — 48. 



Colonist ? Agrestal (parasitic). Hither may be referred 

 all the species of Cuscuta, reported as growing on clover. 

 Whether it is truly a British species, or one only intro- 

 duced from time to time with the seeds of clover, I feel 

 quite unprepared to say at present. 



Cuscuta approximata, Bab. 



Alien or Incognit. This ought not to have been intro- 

 duced into lists of British Plants at all (Phytol. 1846, p. ix.), 

 since it has been seen in England only upon cultivated 

 plants of Melilotus officinalis (?) raised from imported 

 seeds. (See Annals of Natural History, No. 102 ; Phytol. 

 ii. 481.) 



