390 



RESEARCHES ON FUNGI 



pseudorhizae produced in 

 successive years that 

 brought into being the 

 pseudorhizal mass shown 

 in Fig. 192 (p. 384). 



Healing of Pseudo- 

 rhizal Wounds. — It was 

 discovered that, if apseudo- 

 rhiza which has been 

 freshly dug up from the 

 ground is broken across 

 and kept in a moist place, 

 the wound heals up within 

 a few days. The hyphae 

 at the wound-surface turn 

 brown and form a dark 

 smooth layer resembhng 

 that which one normally 

 finds on the pseudorhiza's 

 exterior. Such heaUng, 



Fig. 195. Collybia fusipes. A 

 much elongated compound 

 perennial pseudorliiza arising 

 from a deeply -buried root 

 of a Beech in Kew Gardens. 

 I, leaf -mould made of Beech 

 leaves ; s, soil ; r, a deep- 

 seated root ; a, the pseudo- 

 rliiza of the first-year fruit- 

 body ; b, a pseudorliiza of a 

 second-year fruit-body ; c, a 

 pseudorhiza of a third-year 

 fruit-body ; and d, a pseudo- 

 rliiza of a fourth-year fruit- 

 body. The root in which the 

 mycelium was vegetating is 

 represented here, for the 

 sake of convenience, as only 

 about 8 inches below the 

 surface of the leaf -mould ; 

 but its actual depth was 

 about 12 inches. Clouds 

 of spores are shown escaping 

 from the pilei and being 

 carried away by the breeze. 

 One-half natural size. 



