Records of Surrey Resupi7iate Hymenomycetes. 



319 



This plant is very like P. vcliitina in appearance, and has 

 similar spores, but it is distinguished by the much finer 

 encrusted hyphae, and by the cystidia. Bourdot and Galzin 

 give it as a subspecies of P. radicata, but it appears to us to 

 be sufficiently distinct to rank as a species. 



Peniophora dctritica Bourd. in Rev. sc. du Bourb. 1910, p. 13, 

 and Bull. Soc. Myc. Fr. xxviii, 1912, p. 389. 



Pure white, effused, very thin, with 

 scattered granules suggesting a Grandinia. 

 Hymenium not continuous, appearing fari- 

 naceous under the lens. Cystidia cylindrical 

 or narrowly club-shaped, smooth, thin- 

 walled, obtuse at the apex, 70-90 x 5-6/x. 

 Spores broadly elliptical or obovate, one- 

 guttulate, 5-6 X 4//,. 



On rotten wood, vSt George's College, 

 Weybridge, February 1920, A. A. P. 



^Peniophora laevigata (Fr.) Mass. 



On yew logs, Horsley. The species is fairly 

 common on yew in this district. The speci- 

 mens gathered were of two kinds ; some in 

 thin small well-defined patches; other elon- 

 gated and several mm. thick, representing 

 apparently the successive growth of several years. 



Jaapia Bres. in Ann. Myc. ix, 191 1, p. 428. 



Resupinate, effused, immarginate, flocculose-pulverulent, with 

 the habit of some Corticia or of a pale Hypochnus; spores straw- 

 coloured, sub-elliptical, hyaline-appendiculate. 



The genus is distinguished by the peculiar spores 



/. argillacea Bres. loc. cit. 



Irregularly effused, very thin, flocculose, sometimes with 

 scattered granules, clay-coloured; hymenium at first loose, later 

 more continuous. Cystidia present, cyHndrical, obtuse, occa- 

 sionally with a single septum, 100-160 x 7-8/^. Basidia clavate, 

 up to 60/Z long, 8-io/x wide, with 2-4 curved sterigmata, 8/x 

 long. Spores fusiform, slightly curved, 22-25 x 7-8/^, consist- 

 ing of a central oblong-elliptical portion, 14-18 x 7-8 /it (most 

 15 X 7^)> containing faintly-coloured, granular protoplasm, 

 divided off by a wall from a clear conical portion at either 

 end. Basal hyphae flexuous, frequently septate, with clamp- 

 connections, 4-6/x in diameter. 



On a fallen stick, St George's Hill, Weybridge, October 1919, 

 A. A. P. 



Peniophora detritica. 

 X550. 



