Additional Records of Surrey Resupinate Hymenomycetes. 219 
hyaline, 7-10 x 4°5-7q, germinating immediately to produce 
secondary spores of similar form. Hyphae frequently septate, 
without clamp-connections, often constricted at the septa, 3-5 u 
in diameter; contents, as also those of the probasidium and 
young basidia, granular and with numerous oil-drops. 
On old stumps of beech, birch and oak, Horsley, Feb., Mar. and 
April, 1922. 
In the original description the species is given as “ mucoso- 
gelatinosa”” in texture. The excellent series of specimens 
collected at Horsley showed that this was so only in the later 
stages. When at its best the fungus has somewhat the con- 
sistency of Corticium confluens, and is beautifully pruinose with 
the projecting basidia and spores. 
Platygloea Peniophorae Bourd. et Galz in Bull. Soc. Myc. Fr. 
XV, 1060, p. 17: 
Fungus starting as small patches, then becoming effused over 
the surface of the host, very thin, whitish to pale buff, margin 
pure white, somewhat byssoid. Hymenium 
pruinose under a lens, but interrupted here 
and there by masses of spores (conidia?) 
which are aggregated in semi-liquid globules. aN 
Basidia curved, transversely 2-3 septate, 
5p wide. Sterigmata filiform, flexuose, up 0 
to 40u long. Spores elliptical with one side 
0 
depressed, and with a pronounced lateral, 5 
oblique apiculus, 8-9 x 5-5°5p, germina- Fig. 5. Platygloea Penio- 
ting to form secondary spores of similar phorae. x 550. 
size and shape. 
Growing over the hymenium of Corticium praetermissum, and 
probably also Peniophora pubera, Horsley, Mar. 1922, A.A.P. 
The fungus as described above from the specimens cited 
differs in some particulars from the original description. In 
particular our fungus has not dried “horny and greyish,” but 
as a thin, white, markedly pulverulent film. Nor were any 
sterigmata found as long as those described by Bourdot and 
Galzin (904 and more). The longest sterigmata found in our 
specimens were 40 long, and these were exceptional. It is 
probable that both these points of difference are due to the 
fact that our fungus was younger and therefore less thick than 
the specimens seen by the authors of the species. It is well 
known that the length of basidia and of the sterigmata of the 
Auricularineae varies according to the depth of origin in the tissue. 
Tulasnella violacea (Johan Olsen) Juel in Bihang K. Sv. Vet.- 
Akad. Handl. xxi, Afd. 111, No. 12, 1897, p. 22. 
Effused, very thin, deep violet when fresh but drying to pale 
