WATSONIA 



JOURNAL OF THE 



BOTANICAL SOCIETY OF THE BRITISH ISLES 



Editor: E. F. WARBURG, M.A.. Ph.D. 



Vol. 3 SEPTEMBER 1954 Pt. 2 



CONTENTS PAGE 



Variation in Peplis portula L. By D. E. Allen . . . . . , 85-91 



Vascular Plants common to the Arctic and the British Isles : 



Enumeration of Species. By Nicholas Polunin . . . . . . 92-100 



The Cytology of British Species of Euphrasia. By P. F. Yeo . . 101-108 



Mint Notes. By R. A. Graham 109-121 



Stellaria nemorum L. subspecies glochidisperma Murbeck in 



Britain. By P. S. Green 122-126 



Book Reviews (l SEP 27 1354. )) .. .. 127-128 



PUBLISHED AND SOLD BY THE 

 BOTANICAL SOCIETY OF THE BRITISH ISLES 

 c/o Department of Botany, British Museum (Natural History), London 

 Price Fifteen Shillings 



