PLATE IS 



Fig. 1. E. tw'gursu' from Roborough 

 Down (E197A) : metaphase of first 

 division, pollen mother cell meiosis 

 (X 1000). 



41 



.V 



♦ * 



Fig. 2. E1S7A (see fig. 1) : anaphase of second division, 

 pollen mother cell meiosis ( X 1000). 



Mm 



Fig. 3. E. viguTsii (E348) extreme form, Polgoda Down, W. Cornwall 

 Other species seen are Agrostis sttacea, Erica cinerea and Ulex gallii. 



