470 RESEARCHES ON FUNGI 



Unfortunately I have never met with it since. In EngHsh woods, 

 especially those of Sutton Park near Birmingham, in the course of 

 twenty years, I must have seen some thousands of C. dryophila 



Fig. 194. — Abnormal tremelloid outgrowths of the pileus and stipe of Collybia 

 dryophila, formerly known as Tremella mycetophila Pk. A, a diagram- 

 matic vertical section through a fruit-body of C. dryophila showing two 

 solid outgrowths, a and b, on the top of the pileus and three hollow 

 outgrowths, c, d, e, on the stipe. B, a large outgrowth, removed from a 

 stipe, showing the cerebriform hymenial surface. C, a basidium from the 

 hymenium covering an outgrowth such as B. D, a section through the 

 deeper tissue of an outgrowth showing hyphae with non-gelatinous walls 

 and groups of conidia, c c. E, four conidia at the end of a slender hypha 

 in the deeper tissue of an outgrowth. F, various conidia from the 

 interior of an outgrowth : a, one borne at the end of a slender hypha ; 

 b, five in a chain ; c, several isolated from one another. A and B, natural 

 size ; C, E, and F, magnification, 7G0 ; D, magnification, 333. A, 

 original ; B-F, after E. A. Burt, redrawn and arranged by the author. 



fruit-bodies, but never once have I observed a single specimen 

 which bore excrescences like those which Peck called Tremella 

 mycetophila. My own experience with Collybia dryophila in England 

 is similar to that of other mycologists ; for, so far as I know, the 

 supposed parasite has never yet been recorded for that country. 

 It seems to me that Burt and Boudier have correctly interpreted 



