IV. INTRODUCTION. 



faithful translation of such portions of Dr. Rostafinski's monograph 

 as concern British species. The synonyms have not been com- 

 pared or verified, but are given on authority of the monograph. 

 The plates reproduced from the same work, have the original 

 numbers still attached to them, so that any quotation of figures in 

 the monograph will correspond. The last plate is composed of 

 additional figures of my own. The early portion was already 

 printed before the " Supplement ' : to the "Monograph' reached 

 me, which necessitated an appendix in which all corrections and 

 additions are made. 



It is hoped that this revision and re-arrangement of a small 

 portion of the " Handbook ' will be so received by British My- 

 cologists as to induce me to proceed with other portions, which are 

 equally in need of revision. 



M. C. COOKE. 



