II 



The system of classification adopted (as stated elsewhere) is mainly 

 that of Dr. Winter in Jiabenhorst's J^ryptogamen Flora (quoted 

 mostly in this vol. as "Die Pilze"). The system differs from that. of 

 Saccardo in the Sylloge, mainly in the different grouping of the genera, 

 in this respect standing intermediate between the Saccardian system 

 and that adopted by Cooke in his " Synopsis Pyrenomycetum." 



As a guide to the correct pronunciation, the long sound of the 

 accented vowel in generic and specific names, is indicated by the grave 

 accent ( ^ ) and the short sound by the acute C). 



The name of the author first publishing any species has been 

 retained, placed in parenthesis in case the species has been removed 

 from the genus in which it was first placed. The name after the 

 parenthesis has been omitted as too cumbersome and unnecessary. 

 The piratical practice of omitting the first name and substituting the 

 second in its place can not be too strongly condemned. 



In the case of old and well known species we have adopted the 

 published diagnoses supplemented with notes, in cases where our 

 observations do not entirely agree with the published characters. 



The measurements (in centimeters, cm., millimeters, mm-, and 

 micromillimeters, /i,) have all been made with the same optical com- 

 bination and with the same micrometrical scale. They agree gener- 

 ally with those given by Saccardo, Karsten, and Winter, but are 

 mostly less than those given by Cooke, so that it seems probable that 

 the scale we have used differs somewhat from his. In the measure- 

 ments of asci, the length of the spore-bearing part (p. sp.) has, in most 

 cases, been given. 



The illustrations by our much lamented friend, F. W. Anderson, 

 do credit to his artistic talent, but cause . us to regret that a career of 

 such brilliant promise should ead so soon. The figures were made 

 from actual specimens carefully examined and accurately drawn, to 

 show the more salient characters of the genera. 



The fungi of Greenland,' eriumferated by Professor Rostrup (see 

 page 32) have been included, as it-is probable that most of the species 

 found in that great 6on,trn"ental-. island, will also be met with in the 



