THE MYXOMYCETES OF PICTOU COUNTY. — MOORE, 187 



kis evident. Capillitiimi consisting of delicate flexiioiis threads 

 sparingly branched extending from the columella to the peri- 

 dium to which the ends are attached. Spores large, purplish 

 brown by transmitted light, distinctly warted, 10 — 12 fi in 

 diameter. 



One of our most common species occurring on decaying 

 wood and bark of various trees — more commonly those of 

 deciduous species. 



12. Didijiinum minus Lister. — This species differs from 

 the last in its smaller sporangia, .5 — .0'"™ in diameter, its 

 relatively longer and more slender stipe imparting a more trim 

 and erect appearance. The spores also are smaller, 9.5 — 10 /i 

 in diameter, delicately roughened. 



On fallen leaves of Fagus ferniginea. 



Lister regards this as merely a well marked variety of 

 Didymium farinaceum Schrader, of which Didymium melano- 

 sperum (Sclia?ff.) Macbr. is a synonym. 



Order II. 

 STEMOXITACEJ^. 



Capillitium present, fonued of solid strands, plate or fila- 

 ments. Oolumella usually well developed and from this the 

 capillitium arises and by repeated branching and anastomosing 

 forms a more or less complicated network. Spores in mass dark 

 violet or more rarely brown. 



Family, STEMOXITEiE. 



Fructification when mature generally consisting of distinct 

 sporangia. Peridium delicate soon disappearing, destitute of 

 lime. Capillitimn usually arising from a columella, formed of 

 solid filaments without lime. 



This family is represented in my collection by six species 

 and two genera. 



Fuoc. & Tkans. N. S. IxsT. Scr., Vol. XII. Tkans. 13. 



