EXPLANATION OF PLATE X. 



Phvsarum inaculatiun Macb., p. 383. 

 Fig. I Stipitate sporangia X about 14. 

 Fig. III. Capillilium of the same highly magnified. 

 Fig. ill. Spore X 1000 ( The l> was b\ some cliance omitted from tlie drawing.) 



Plivsarnm iticaraL^nciiM' Maclj., p. 3S2. 

 Fig. 2. Sporangia X al)Out 14. The sporangia are all stipitate. 

 Fig. 2(1. Capillilium, highly magnified. 

 Fig. j.b. A single spore X iogcj. 



Comntriclui shimrhiann, Macb , p. 3S0. 

 Fig. 3. Sporangia X about 10. 



Fig. 3rt. Capillitium X 3o. 'I'he stipe breaks directh- into the larger branches. 

 Fig. T,b. .\ single spore X lono. 



Slcinoiiili.^ sinitliii Macb., p. 3S1. 

 Fig. 4. Sporangia X 4- 

 Fig. 4^7. Capillitium X about 30. 

 Fig. ifh. Spore X 1000. 



Stciin>iiiti.< ai.'sh7/r>/.<:i.< Macb., p. 3S1. 



f'.i^- 5' Sporangium X about 6. 

 Fig. 5«. Capillitium X about 40. 

 Fig. 5Z>. A single spore X 1000. 



Cribmria exi/ts Macb., p. 378. 

 Fig. 6. The sporangium X 50. The drawing rather diagrammatic. 

 I'iii. 6'r A single spore X looo. 



