70 



Transactions British MycoIogicaJ Society. 



basidia, which, however, can only be seen in the fresh 

 specimen, as they collapse completely on drying. 



TuLASXELi.A TREMELLOIDES Wakcf. ct Pearson, sp. nov. 



Sporophorum late efifusum, purpiireum, gelatinosum, 

 plicato-undulatum, margine concolore. Basidia clavata, 15- 

 18x6.5-7/-*, 4-sterigmatica, intus granulosa; sterigmata 

 primo oblonga, intus granulosa, 15x3-30/^, demum 

 coliapsa, ad 20/i longa. Sporae ellipsoideae, uno latere de- 

 pressae, basi lateraliter apiculatae, 8-10x4.5-5 {-^.^)ijl, hya- 

 linae. Hvph^ siibhvmeniales 6-8/^, basales 4,u, pallide pur- 

 pureae. liab. On pine needles covering a nest of Formica 

 rufa, L., at the foot of a stump, extending for about a square 

 foot, Weybridge, A. A. Pearson, Nov., 1917. 



This fine plant differs from most other species of Tulasnella 

 in the thick gelatinous consistency. When fresh it bears a 



strong re- 

 semb lance 

 both in 

 colour and 

 habit to 

 some forms 

 of the coni- 

 dial stage 

 of Coryne 

 safe aides. 

 T. f us co- 

 viol ac e a 

 Bres. is de- 

 scribed as 

 being gela- 

 tinous when 

 fresh, but 

 that species 

 differs from 

 the present 



in its longer spores, obovate sterigmata, and in drying lilac. 

 The present species becomes blackish and hornv as it dries 

 and collapses to a thin film. It made only a fleeting appear- 

 ance ; the cold wind and a touch of frost shrivelled it up and 

 turned it black. 



Tulasnella tremelloides Wakef. et Pearson, 

 a, Group of basidia of varying ages; b, Old basidium 

 from which spores have been discharged; c, Spores; 

 d, Basal hypha x 850. 



Corticium laeve Pers., roseo-cremeum Bres. 



Corticium Galzini Bourd. et Galz. This species has hitherto 



