74 CHAPTERS ON FUNGI. [Morck, 



one of the first Funguses that appear after the heat of summer is 

 over. 



Boletus luridus, Schseff. Poisonous Boletus. Pileus puM- 

 natCj subtomentose^ olive ; tubes nearly free, round, yellow, their 

 orifices crimson-red ; stem thick, more or less marked or reticu- 

 lated with crimson-red. 



Woods, summer and autumn ; common. 



Pileus 2-6 inches broad, convex, expanded, smooth to the 

 naked eye, olive or ferruginous-brown. Flesh yellow, changing 

 to blue when broken. Tubes free, yellow, also changing to blue 

 when broken or separated, their orifices red or orange, round. 

 Spores elliptic, olivaceous-ochre. Stem thick, bulbous, variegated 

 with red and shades of yellow. 



A handsome species, but possessing very deleterious properties, 

 and therefore to be avoided. The crimson or orange surface 

 presented by the tubes is beautiful, and the changing of the 

 colour of the flesh and tubes to blue is very curious. The colour 

 of the pileus varies to brick-red, pinkish, or cream-coloured. 



Boletus scaber, Bull. Scurfy Boletus. Pileus pulvinate; 

 tubes free, round, white; stem firm, attenuated, rough with 

 scurfy scales. 



Woods, summer and autumn ; very common. 



Pileus 3-7 inches broad, viscid when moist, very variable in 

 colour, but generally cinereous-brown, olive, or orange, smooth 

 or minutely downy. Flesh thick and soft. Tubes generally of 

 a greyish-buff" colour, their orifices often ferruginous when young. 

 Spores subfusiform, brownish-ochre. Stem 6 inches or more 

 high, attenuated upwards, squamose with black or orange scales, 

 often marked with longitudinal coarse raised lines (of black) . 



A common but variable Boletus, well marked, however, by its 

 rough stem. It is said by Dr. Badham to be edible. 



3. HTDNEL 



The Fungi of this suborder have their hymenium clothed with 

 prickles or spines, which vary in being sharp or obtuse. I shall 

 notice two genera, Hydnum and Radulum, 



Hydnum. 

 Hymenium of the same substance as the pileus, composed of 

 free spine-like processes. 



Hydnum repandum, L. Common Hydnum. Pileus fleshy. 



