Jakob E. Lange: Studies in the Agarics of Denmark. II. 15 



seen once, many years ago, and whose spores I do not know) 

 seems to be nearly related to A. cingalata. 



A bulbigera — if the colour of the spores be disregarded — 

 is plainly a Cortinarius (Phlegmacium) of the Scauri-group. Bulb, 

 gills, arachnoid veil, viscid cuticle etc. are all in the strictest 

 accord with these characteristic agarics. And so, in fact, are 

 the spores, except for their want of colour. But although the 

 colour of the spores is a very important characteristic (and very 

 convenient!), I do not think it right to allow it absolute predo- 

 mination. There are several instances of coloured and white- 

 spored agarics being most closely related. Thus f. inst. Naucoria 

 cucumis has several white-spored allies (Collybia mimica etc.), 

 Mycena galeropsis is a white-spored Galera of the tener-trihe, and 

 so forth. 



Of course the strict adherence to the classification according 

 to spore-colour — like any other artificial system — has the 

 advantage of uniformity, and facilitates the study for the beginner. 

 But if a deviation from that system helps to bring together 

 species which are really next in kind, it undoubtedly will be a 

 step in the right direction. 



Armillaria mucida is a rather singular species and has no 

 very near relatives. Still I think it will not be very much 

 wronged if placed next to Collybia radicata. It agrees with this 

 species in having large thick-walled spores, a sub-gelatinous 

 surface and broad, firm gills. In fact when C. radicata grows 

 on superficially-running roots — and consequently has no »root« 

 but simply a slight swelling at the base of the stem — it is not 

 unlike the Armillaria mucida, which probably grows on the 

 overhanging branches. — Already Fries had evidently this 

 similitude in view, when he termed the tribe, for which Arm. 

 mucida is the type: Collybiæ annulatæ. 



As to Agaricus corlicatus, which several authors (f. inst. 

 Karsten and Schroeter) refer to Armillaria, I follow Fries, 

 who places it in Pleurotus. The examination of the spores 

 confirms this view, as they are very much like those of P. 

 ostreatus etc. 



That Armillaria denigrata (of Fries) is Pholiota erebia I think 

 is in confesso. And as most likely the rest of the species now 

 included in Armillaria will naturally go with one or other of 

 those mentioned above, the whole estate, so to speak, of the 



