SPORE DISCHARGE AND DISSEMINATION 



341 



N) 



A.H.RB, 



B 



subsporangial swelling. Bending toward the source of light then occurs until an 

 equilibrium is reached and the light rays are concentrated at the base of the sub- 

 sporangial swelling. B, at this time the gun is pointed directly toward the light 

 source. (After Buller, Researches on Fungi, Vol. VI, pp. 91, 92, 1934. Reproduced 

 by permission of Longmans, Roberts and Green,) 



