Some Mushrooms found in Canada. 1'71 



In the genus Boletus these tubes are easily 

 separated from the hymenophore and from each other. 

 They are fleshy putrescent fungi, most of them edible, 

 a few are poisonous. Those having any red color about 

 the pore surface are considered harmful. Boletus 

 edulis has a cap, which in dry weather looks like un- 

 dressed kid, its pores are at first yellow and later olive 

 in color. 



Boletus scaber has a bulbous rough stem and dingy 

 white pores. 



Boletus cyanescens has white flesh, turning a deep 

 indigo blue when broken. 



Boletus luridus has yellow flesh, turning green when 

 broken or bruised, and has red pores and dashes of red 

 on the stem. It is pernicious, as is also Boletus 

 ■piperatus, which has a brown cap reddish pore sur- 

 face, yellow flesh becoming red just under the skin 

 when broken — its taste is peppery. 



Boletus sub-tomentosus, bovinus, versipellus, chro- 

 mapes, clintonianus and flavus are others we have 

 found. All become infested very early by insects and 

 worms, so that it is seldom that any are found in a fit 

 condition for food. 



Polyporus betulinus is a' white fungus seen frequent- 

 ly on birch trees, when dry it is said to make razor 

 strops. 



Polyporus borealis is another woody species as is 

 Polyporus lucidus, which when grown has a hard 

 shiny surface like mahogany. 



A few years ago we found a specimen of Polyporus 

 Sulphureus on Mount Royal. It had been broken 

 from its support and scattered about in small pieces, 

 probably by some one imbued with the idea that all 

 toadstools are harmful and should be destroyed. It is 

 of a bright yellow color, is without a stem, as the cap 

 is attached by the side to the trunk of a tree, where it 

 grows in layers. When in the fullest vigor it is filled 

 with a sulphur yellow milk. It has a decidedly acid 

 taste, and is said to show phosphorescence at night. 

 It is to be found from August to October. Mcllvaine 



