176 Journal of the Mitchell Society [February 



Dorsal surface grayish, zoned, coarsely hairy S. fasciatum (5) 



Dorsal surface grayish, zoned, tomentose; plant small, 



growing on cedar S. rameale a form (7a) 



Dorsal surface in large part smooth and shining; chest- 

 nut or lighter reddish-brown, tomentose at base and 

 at times on some of the zones aS. rameale (7) 



Dorsal surface satiny-tomentose, with zones of tan, cin- 

 namon, reddish-brown, etc S. lobatum (6) 



Dorsal surface smooth, silky-shining, pale tan to whit- 

 ish. S- sericeum (8) 



Dorsal surface white when dry and densely woolly hairy 

 all over; hymenium golden yellow when dry; plant 

 small S. ochraceoflavum (9) 



Dorsal surface dull brown, subtomentose on the whitish 



margin; flesh spongy S. fuscxim (10) 



Dorsal surface smoothish or more or less scurfy-tomen- 

 tose, particularly towards the margin; deep purplish 

 brown or blackish, margin tawny when growing S. subpileatum (3) 



1. Stereum gausapatum Fr. 



S. spadiceum Fr. 



Plates 20 and 35 



Plant laterally sessile forming a complicated mass of branched, 

 wavy, imbricated, horizontal caps which project a distance of about 

 1.5-5 cm.; a compound group at times extending laterally up to 

 8-9 cm. Dorsal surface zoned frequently with ridges and prolifera- 

 tions, densely matted tomentose all over; color when damp dull 

 tawny with brownish zones, the margin reddish brown (where the 

 reddish flesh shows through the thinner tomentum), when dry all 

 parts are a clearer tawny or buffy tawny except for a narrow reddish 

 margin. Hymenium wavy and undulating to form radial ridges, 

 when damp dull dark brown with a tint of bay, the marginal part 

 for about a cm. being reddish ochraceous; all parts of the hymenium 

 turn instantly dull red when bruised and emit a little reddish latex. 

 When dry the hymenium becomes a somewhat lighter dull smoky 

 buff or tan with a faint fleshy tint. Flesh when wet very tough and 

 pliable, about 0.5 mm. thick, deep reddish brown, the hymenium 

 about 0.4 mm. thick (unusually thick for a Stereum) and the tomen- 

 tose coat about 0.6-1.4 mm. thick; tasteless and odorless. When 

 dry the caps are rigid and rather brittle. 



Spores (of No. 4110) pale creamy flesh, smooth, elliptic, 2.5-3.7 x 

 6-8.5[x. 



