New British Hymenomycetes. A. A. Pearson. 57 
sterigmata 24—3 » long; spores hyaline, sub-globose, attenuated 
at base, usually 1-guttulate, rough with short conical warts 
3-32 X 2-23 p. 
On pine stick, Weybridge, Surrey, Sept. 1920. 
PENIOPHORA SPHAEROSPORA Vv. Hohn. et Litsch. Op. cit. Cxv, 
1906, p. 1600. 
Broadly effused, firmly attached to the substratum, 0-15 to 
0-30 mm. thick, edge indeterminate, chalk white, smooth or 
papillate, waxy when fresh, not cracked when dry. Basidia 
clavate 25-35 x 6-8 with 4 long subulate sterigmata. Cys- 
tidia abundant, cylindrical, usually narrowed at apex, thin 
walled, 35-85 x 5-8 projecting above the hymenium. Spores 
globose 4-7 » diam. apiculate, colourless, smooth, 1-guttulate. 
Hyphae smooth, thin walled, somewhat nodulose, often anasto- 
mosing with frequent clamp connections, 4—5 p thick. 
On fallen stick, probably alder. Weybridge, Nov. 1920, Rev. 
J. P. Alexander, C.J. and A.A. P. 
PENIOPHORA LAEVIS (Fr.) Burt 
Broadly effused, membranous, not closely adnate, at first 
white, then cream, more or less cracked when dry, edge radiately 
fibrillose; hyphae regular with few or no clamp connections, 
walls thin, the sub-hymenial hyphae 3—4 » diam. basal hyphae up 
to 7 or 8y; cystidia fusoid 40-90 x 4~7 w with or without in- 
crustation (6-11 y) walls thin or slightly thickened; basidia very 
variable, 20-36 x 3-7 uw (most frequently 35 x 44) with 2 or 4 
sterigmata 4-6 long; spores elliptical oblong, 44-6 x 23-34 
uniguttulate. 
On birch bark, Weybridge, Nov. 1920. 
HYPOCHNUS ROSEO-GRISEUS Wakef. et Pearson var. LAVANDU- 
LACEUS N. V. 
Differs from the type in the greyish lavender colour of the 
hymenium, without trace of pink. 
Found in abundance on the ground under Castanea vesca at 
Porlock, Somerset, Sept. 1920. 
HYPOCHNUS GRANULOSUS (Peck) Burt. in Ann. Missouri Bot. 
Gard. 111, 1916, p.218 (= Grandinia tabacina Cookeand Ellis) ; 
Zygodesmus granulosus Peck; Hypochnus elaeodes Bresad. 
Effused in a thin separable membrane, granular, sepia, 
margin somewhat radiate, concolorous; hyphae loosely inter- 
woven, thin walled, occasionally nodose-septate, 24-4 » diam. 
yellowish under the microscope; spores same colour as hyphae, 
