204 THE MYXOMYCETES OF PICTOU COUNTY. MOORE. 



EXPLANATION OF PLATE X 



2.Didymium melanospermum (Pers.) Macbr. A. Columella shewing 

 origin of capillitial filaments x 33. B. Spores x 250. C. Portion 

 of the peridium with capillitial threads attached x 166. D. Stellate 

 lime crystals from peridium. E. Diagrammatic section of sporan- 

 gium shewing relations of columella, capillitium and peridium. 



7. Stemonitis 'maxima Schweinitz. A. Portion of columella and capil- 

 litium x 500. B. Spores x 500. C. Sketch of cluster of sporangia, 

 shewing habit of growth. 



8. Fuligo ovata (Schaeff. ) Macbr. A. Sketch of an aethalium shewing 

 habit of growth. B. Portion of capillitium x 300. C. Spores 

 x 300. 



