the stem is quite liidden beneath the pileus, which " coops in/' as Withering says ; and this lobed, irregular 

 form is never lost in expansion, which is one point of difference from the common B. luridus, for that is very 

 regularly convex in age and scarcely ever lobed in youth, but it is also one point of ar/reeinent with B. Sata- 

 nas. The mass of tubes in the latter and B. elejihantiims is exceedingly concave, unequally compressed^ 

 and in age is never convex beyond the margin of the pileus, as in B. luridus. 



The tubes are extremely fine and close, indeed in young specimens scarcely apparent, and can only be 

 represented by the prick of a tine needle. In our present subject both tubes and orifices are of a clear pure 

 sulphur-colour, without the slightest tinge of red at any period ; in age they become dirty yellow or tawny, 

 not at all olivaceous ; they turn very blue when cut, but never the deep green dusky olive of B. luridus. 

 The stem is yellow, reticulated with red, and changing to purplish-red where eaten by insects ; the ilesh does 

 not assume a red cast when cut or broken. No peculiar smell or flavour distinguishes it : it is certainly 

 rare ; we never found it or heard of it elsewhere than in the field near Barnet Wood, Bromley Common, and 

 Withering seems to have collected it only once at Edgebaston. It has been supposed that his B. elephan- 

 thms is synonymous with B. edulis, but this is an error, possibly countenanced by the recent edition of the 

 Bot. Arrangement : but the last edition, which was supervised hj himself, is the only one worth referring to> 

 at least as regards Mycology. 



No variety of B. pachi/pus has a white pileus, and granting that so respectable a fungus might indulge 

 in masquerade for once, greater discrepancies from B. elephantinus would remain behind ; true, the pores 

 are yellow, but their mass is not concave, nor the tubes shallow, and it assumes no blue or green when cut 

 or broken. 



Boletus Satanas is given in the first series of these illustrations as B. luridus, var. a. 



We feel almost certain that our B. elephantinus is B. erythropus of Krombholz, if not of Fries. 



