HYMENOMYCETES. 



Sul-genus RESUPINATUS. 



C T. PUTEANA. Schum. 



Effused, sub-orbicular, sub-carnose, tender, sub-tuberculose or 

 nearlj' smooth ; margin broad, soft, whitish ; hymenium 

 towards the margin yellowish ; centre bright, olivaceous 

 tawny. On the under side of a plank leaning against a damp 

 wall, and in other similar situations. 



7 T. AEiUA. Fries Ep. 



Effused, membranaceous, paler than the last, dry. Spores 

 elliptical. -0005. On aged whitethorns, Kuowsley. The hy- 

 menium seems to be developed only on the wood, but the plant 

 spreads over the bark, nestling in the crevices, and extending 

 more or less continuously for many feet. 



Genus XXVIII. STEREUM. Fries. 



Sub-genus APUS. 



8 S. PURPUEEUM. Pers. 



Sub-coriaceous, imbricated ; reflexed disc, strigose, zoned, 

 whitish ; hymenium smooth, purplish or lilac. A variety occurs 

 which is broadlj' effused, margin narrowly reflexed, hymenium 

 brownish lilac. Common on timber, stumps and posts. 



9 S. HIESUTUM. Willd. 



1 — 2 broad. |-1J from the margin to the base. Coriaceous, 

 imbricated, disc strigose, zoned, yellowish ; margin rather 

 blunt ; hymenium smooth, luteous, retaining its colour or en- 

 tirely faded when dry. The most common of the tribe, 

 abounding everywhere on fallen trees and posts. Very variable, 

 but for the most part easily known by its bright buff or egg 

 yellow hymenium. 



10 S. sPADicEUM. Fries. 



i— li from the margin to the base. 1 — 2 broad. Coriaceous, con- 

 fluent, iiiibrieated, disc somewhat zoned, or radiately strigose, 

 cinnamon; margin velvety, pale ; hymenium smooth, reddish 

 umber, blood-stained wlien bruised; substance white witliin. 

 Notiuiconnuonon fallen trees, especially oaks. If I haveriglitly 

 ap])relu!nde(l the limits of this sjjefies, it is even more variable 

 than the preceding one. 1 have a si)ccinien which might 

 almost claim to be placed in the group Merisma, the pilooli 

 being numerous and entire ; the margin is often nmcli sinuated 

 and crisped ; the hymenium nodulose or with long anasto- 

 mosing tubercles. The plant often occurs with a good deal of 



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