11 



Tlio system ol' diissilicittioii iidoptod (as stated elsewhere) is iiiaiidy 

 that of Di'. Winter in liahenhorsfs Enjptnganien Flora ((pioted 

 mostly in this vol. as "Die I'ilze";. Tiie system dillers from that of 

 Saccnrdo in the Syllo^e, mainly in the dift'erent <iron|)in<f ol" the jienei-a. 

 in this respect standinn' intermediate between the Saccai'dian system 

 and that adopted l)y Cooke in his ''Synopsis Pyrenomycetum." 



As a j^nide to the coricet j)roninK'iati(m. the long sound of the 

 accented vowel in generic and si)eeiric names, is indicated by thegiave 

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



The name of the author first jtuldishing any species has been 

 retained, placed in pai'cnthesis in case the species has lieen removed 

 from the genus in wiiich it was lirst placed. The name after the 

 parenthesis has been omitted as too cumbersome and unnecessary. 

 The piratical practice ol' omitting the first name and substituting the 

 second in its place can not be too strongly comlemned. 



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

 jmblished diagnoses supplemented with notes, in cases where our 

 ol)servations do not entii-ely agree with the ^dblished characters. 



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

 mici'omillimeters, //,) have all been made with the same optical com- 

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

 ally with those given I)y Saccardo, Kai'sten, and Winter, but are 

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

 the scale we have used dillers 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. Andei-son, 

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

 such brilliant i)ronuse should end 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, enumerated by Professor Rostrup (see 

 page 32) have been included, as it is proba])lc that most of the species 

 found in that great continental island, will also be met with in the 



