3i8 



Transactions British Mycological Society. 



Corlicium flavescens. x 550, 



other allied species. Basidia oblong or clavate, 20-30 x 12-13 /x, 



with 2-4 curved sterigmata, 

 8/Along. Spores somewhat lemon- 

 shaped, apiculate at either end, 

 and flattened on the inner side 

 15-17 X 7-9/x (most 15 X 8fi). 

 Basal hyphae septate, hyaline 

 or yellowish, without clamp- 

 connections, branched at right- 

 angles, loosely interwoven. 



On rotten wood, St George's 

 Hill, \Ve3^bridge, February 1920, 

 A. A. P. 



The species occurred abundantly, but most of the specimens 

 were sterile. Fortunately some good fruiting specimens were 

 obtained, and recognised at once by the characteristic spore. 



Corticium praetermissum (Karst.) Bres. 



The form which has been described as Gloeocystidium tenue 

 (Pat.) von Hoehn. & Litsch. occurred amongst the typical form. 

 G. tenuc has c\''stidia which are very prominent, and are fre- 

 quently swollen into a subglobose head at the apex and sur- 

 mounted by a deposit of calcium oxalate. Intermediate forms 

 occur so frequently that it is impossible to keep this form spe- 

 cificall}' distinct from G. praetermissum. 



Peniophora leprosa Bourd. & Galz. in Bull. Soc. Myc. Fr. 

 XXVIII, 1912, p. 394. 

 Irregularly effused, somewhat thick and crustaceous, margin 



white, indeterminate, occasion- 

 ally prolonged into white rhizo- 

 morphic strands. Hymenium 

 pinkish-ochraceous, somewhat 

 cracked when dry, and rough 

 with cystidia under the lens. 

 Cystidia very rough, cylindrical 

 to sub-fusiform, frequently oc- 

 curring in clusters, so as to give 

 an Odontia-like appearance, 

 occasionally branched near the 

 apex, 60-90 X 8-14/X. Basidia 

 inconspicuous, about 4/x wide. 

 Spores elliptical, 4-6 x 2'5-3/x. 

 Basal hyphae 3-4 {-y)ii, often 

 strongly encrusted with crys- 



55°- 



Peniophora leprosa 



tals, clamp-connections rare 



On dead bark, Horsley, April 1920, A. A. P. 



