CONTENTS 



PAGE 



Norwich Foray , . . i 



Keswick Foray 4 



Keswick Lichens. By H. H. Knight lo 



Report on the Mycetozoa found during the Foray at 



Keswick. By W. N. Cheesman and W. T. Elliott , 12 



Presidential Address. Some Present-day Aspects of 



Mycology. By F T. Brooks . . . . 14 



Lamproderma columbinum Rost. and its Varieties. By 



G. Lister -32 



An Alpine form of Anellaria separata. By Somerville 



Hastings. (With Plate I) 34 



Edible Fungi. By Carleton Rea 35 



New British Discomycetes. By W. D. Buckley . -43 



Remarks on the Nature and Definition of Species. By 



R. C. McLean 47 



Ecology and Phenology of Surrey Mycetozoa. By 



P. J. Alexander 58 



British Lahoulheniaceae. A Catalogue of the British 

 Specimens in the Thaxter Collection at the British 

 . Museum. By Winifrede L. Hake .... 78 



The Fungus present in Lunularia cruciata (L.) Dum. By 



W. F. F. Ridler . ,. 82 



The genus Trichosterigma Petch. By T. Petch . -93 



Spore Formation in Rhacodium Cellare Pers. By. J. H. V. 



Charles .94 



A List of Fungi, &c. maintained in the National Collection 

 of Type Cultures. By R. St John Brooks and Mabel 

 Rhodes 95 



On Dematium pullulans de Bary. By Isme A. Hoggan , 100 



Studies in Entomogenous fungi. By T. Petch. (With 



Plate II and five text-figures) 108 



Proceedings 128 



PRINTED IN GREAT BRITAIN BY W. LEWIS AT THE CAMBRIDGE UNIVERSITY PRESS 



