CHAPTER IV 



THE ARMILLARIA SUB-TYPE ILLUSTRATED BY 

 ARMILLARIA MELLEA, ETC. 



Representative Species — Characters of the Armillaria Sub-tj-pe — ArmiUaria mellea. 

 Genera] Remarks — The Gills and the Hymeniuni — Marasmius oreades — 

 Russula ochroleuca — Amanita rubescens — Amanitopsis vaginata — Collyhia 

 radicata, C. velutipes, C. drijophila, and C. ftisipes—Pluteus cervinus — Nolanea 

 pascna — Concluding Remarks 



Representative Species. -The Armillaria Sub.type of £ruit-body 

 organisation is of very widespread occurrence among the Leuco- 

 sporae and the Rhodosporae. To it belong such well-known fungi 

 as the follow ing : 



Leucosporae 



Armillaria mellea 

 Amanita rubescens 

 Amanitopsis vaginata 

 Marasmius oreades 

 Collybia velutipes 

 Collybia fusipes 

 Collybia radicata 



Collybia dryophila 

 Tricholoma nudum 

 Mycena galericulata 

 Hygrophorus conic us 

 Russula cyanoxantha 

 Russula ochroleuca 

 Lactarius quietus 



Rhodosporae 



Pluteus cervinus 

 Nolanea pascua 



Whether or not any of the Ochrosporae belong to the Armillaria 

 Sub- type remains to be decided by further investigation, but my 

 observations point to the total exclusion of the genera Bolbitius, 

 Galera, and Inocybe, and to the exclusion of at least a number of 

 species of Cortinarius. Of the Porphyrosporae, the genera Stro- 

 pharia, Psilocybe, and Psalliota are all included in the Panaeolus 

 Sub-type ; and it is not unlikely that this will be the fate of all 

 the species of this family. The Armillaria Sub-type, therefore, must 



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