166 



THE LOWER FUNGI— PHYCOMYCETES 





Fig. 60. — Saprolegnia spp. (a) Proliferation of sporangia, (b) An oogonium 

 encased in the walls of two emptied sporangia: a less common phenomenon of 

 proliferation, (c) Mature swarmsporangium. (d) Swarmspores escaping from 

 a terminal pore, (e) Six successive stages (from top to bottom) in diplanetism. 

 (h) Chlamydospores. (o, h, and h, after Coker 192S; c and d, after Atkinson 1909; 

 e, after Marshall Ward 1883.) 



