EXPLANATION OF PLATE VII. 



Diachcca aplendcna. Pk., p. 143. 

 Fig. I. Sporangia and hypothalhis x -5- 

 Fig. \a. Capillitium X 50. 

 Fig. \h. Spores X 900. 

 Fig. \c. Portion of the capillitium X '50. 



Did villi II III miciocarpon, Fi\, p. 146. < 



Fig. 2. Sporangia X 3o. 

 Fig. 2a. A spore X 1400. 

 Fig. 2b. Calcareous crystals from the peridial wall X 750. 



Didymiiim fciriiiacrinii, Schrad., p. 146. 

 Fig. 3. Sporangia X 10. 

 Fig. 3^7. A single spore X about 1000. 



C/ioiidriodrnito testacruiii, Sclirad., p 148. 

 Fig. 4. Sporangia; the first exhibiting the two peridial walls and the spore- 

 mass X 10. 

 F'ig. 4^. Spore X 750- 

 Fig. 4/'. Capillitial threads X 750. 



C/ioiidriodrrina glahosmn, Pers., p 147. 

 Fig. 5. .Sporangia; the first with the outer peridium broken away X 10. 

 Fig. 5^?. A single spore X 750. 



Fig. 7. A mass of clustered sporangia, to show liabit of aggregation, natural 

 size. 



SpiliiKirid alba. Bull., p. 144. 

 Fig. 6. An aMhalium, borne on a grass-stem, natural size. 

 Fig. Ga. A spore X 750. 

 Fig. bb. Capillitium, with surface calcareous cr\ ^tals X 750. 



Tubitliiia cvliiidrica. Bull., p. i 14. 

 Fig. 8. A single spore X 1400. 



