ADJUSTMENTS OF FRUIT-BODIES 



53 



It is evident, however, from these experiments that the stipe of a 

 Mushroom has but small powers of making geotropic curvatures 



Fig. 18. — Psalliota campestris. Geotropic reaction of the gills. The pilei were 

 fixed with their planes in a vertical position. In the course of about 

 twenty-four hours the gills, in attempting to readjust themselves in vertical 

 planes, took up the positions shown in the photograph. Natural size. 



when compared with that of Lentinus lepideus, or those of species 

 of Mycena, Psathyrella, and Coprinus, &c. ; but owing to the fact 



