Resupinate Hymenomycetes. Wakefield & Pearson. 141 



On wet, rotten, decorticated branch, Weybridgc, Nov. 1918, 

 A.A.P. 



Distinguished from P. glcbidosa by the capitate cystidia and 

 the different spores. It appears to be sufficiently distinct to 

 be regarded as a separate species. 



Hypochmis zygodesmoides (Ell.) Burt, itmbrinus (Fr.) Burt*, 

 ferntgincHs (Pers.) Fr. 



Hypochnns yosco-griscus Wakef. et Pearson, sp. nov. 



Fungus effusus, mollis, tenuis, pelliculosus vel membranaceus, 

 facile secedens, ambitu subradiato griseo, hymenio pulverulento, 

 pallide griseo-vinaceo. Hyphae 

 subhymeniales subhyalinae; hy- 

 phae basalcs dilute griseae, v'\x 

 ramosae, septatae, non nodosac, 

 2-5-3 ju diametro. 



Basidia clavata, subhyalina, 

 40-55 X 7-10/x; sterigmata 2-4, 

 7-9 ju. longae. Sporae angulato- 

 subglobosae, hyalinae vel pallide 

 stramineae, crasse verrucosae, 

 7-9jLt diametro, saepe i-guttu- 

 latae. 



Hab. On bark, wood, etc., 

 especially of pine, Weybridgc, 

 1917-18, A.A.P. 



This is the commonest Hy- 

 pochnns in the pine woods of 

 this district, and is especially 

 abundant on old pine roots. 



The colour of old specimens recalls that of H. fitscus, but is 

 paler, with a greyish bloom. When fresh it is between "light 

 vinaceous fawn" and "cinnamon drab" of Ridgway, with a 

 paler, "drab-grey" margin. Young specimens are greyish- 

 white to dirty buff. The species is marked off from all other 

 species of Hypochnns with which it might otherwise be confused 

 by the very fine hyphae, without clamp-connections. The 

 almost hyaline spores at once distinguish it from H. fnscus. 



Grandinia helvetica (Pers.) Fr. 



Odontia fusco-ati'a (Fr.) Bres. 



Radulum laeUim Fr. Apparently a form of Peniophora incar- 



nata. 



* See p. I j2 



X S50 

 Hypochnus rosea- griseus. 



