Bd 2. • DANSK BOTANISK ARKIV • Nr. n 



UDGIVET AF DANSK BOTANISK FORENING 

 — 1921. 



nor ank; Ai 

 uakub* 



Studies in the Agarics of Denmark") 



Part IV 



Pholiota. Marasmius. Rhodophyllus. 



By 



Jakob E. Lange. 



With one plate. 



THE GENUS PHOLIOTA. 



I he great French mycologist Quélet, that ingenious con- 

 triver of genera, in his »Flore Mycologique« splits up the old 

 genus Pholiota so completely that it is difficult to trace the 

 scattered remnants to their new position. Most of the Friesian 

 section Hamigeni he lumps (sub nom. Cijclopus) with Hebeloma 

 and Naucoria in a new genus Hylophila. Only P. aurea (= Vahlii) 

 does not go into this genus but is placed in Lepiota, next to 

 L. amianthina and others of the section Granulosi (sub nom. 

 Lepiota pyrencea). (What Quélet calls P. aurea is P. spectabilis 

 Fr.). — Of the section Truncigeni of Fries together with most 

 Flammulas and the fascicularis-tribe of Hypholoma he forms 

 another large genus (Dryophila), while P. mycenoides is shifted 

 to Galer a. 



As any student of these agarics will see this revolutionary 

 reclassification is in fact a rather natural one, uniting species 

 which really have numerous traits in common, while the old 



*) Part I of these Studies (General introduction. The genus Mycena) was 

 published in D. B. A. vol. I no 5 (1914); part II (Amanita, Lepiota, Copri- 

 nus) in vol. II no. 3 (1915); part III (Pluteus, Collybia, Inocybe) in vol. II 

 no. 7 (1917). — »Danmarks Agaricaceer« now comprises over 900 

 watercolour-plates, (Library of the Bot. Museum, Copenhagen) all painted 

 bj' the author. For further particulars see part I. 



1 



