PLATE XIV. 



Fig. 1. A spore-ball in culture, showing the spore in various stages, e.g., at t, 

 the tetrahedral arrangement of nuclei. 



Figs, j Section through Hyp}umiycete scab, showing chains and balls of spores, 

 2, 3, 5.) both arising and formed. 



Fig. 4. Host-cells filled with fungal hyphse, from type herbarium material of 

 Tuburcinia scabies. 



Fig. 5. The spore-groups of the Hyphcmvycete in a much more powdery condition 

 than in Spongospora. The sporogenous hyphse are clearly seen in 

 the figures 2, 3, 5. 



