200 THE MYXOMYCETES OF PICTOU COUNTY. MOORE. 



with many free swollen ends, the threads beset with short spines,, 

 and adorned with a number of very faint spiral lines. The 

 threads or tubules are about 3. 5 /A wide. Spores colorless by 

 transmitted light, marked with a few small scattered warts,, 

 6.5 8. 5 fJL in diameter. 



On decaying Populus grandidentata. 'Not common. 



34. Hemitrichia stipitata Massee. Sporangia scattered, 

 stipitate, obovoid, dusky yellow. Total height with expanded 

 capillitium about 2.5 mm . Stipe about one-half the total height, 

 dark colored, hollow, filled with spore-like cells. The lower por- 

 tion of the peridium persists as a calyculus extending to about 

 one-third the height of the capillitium, its interior surface 

 covered by minute papilla?. The capillitium consists of a" close 

 net of even brown threads, 6 6.5 ^ wide, adorned with a num- 

 ber of regular spiral ridges, somewhat closely wound. Free 

 ends are not evident. Spores colorless by transmitted light,, 

 minutely warted, about 7/4 in diameter. 



On decaying Pinus strobus. Common. 



Genus, Trichia (Haller) Rost. 



Capillitium of free elaters, simple or branched, and adorned 

 with a number of spiral ridges. Sporangia sessile or stipitate. 

 Spores generally yellow. 



35. Trichia inconspicua Rostafinski. Sporangia gregar- 

 ious, small, spherical, ellipsoid reniform or arcuate, sessile, red 

 brown in color. The elaters are brown, simple, 3 4/4 wide, 

 marked with a number of close-wound spiral ridges projecting 

 sharply. The ends are somewhat swollen behind the curved 

 or hooked tips which are sometimes bifurcated. Spores yellow- 

 ish by transmitted light, papillose, about 10/4 in diameter. The 

 gathering which I have referred to this species combines many 

 of the characteristics of Trichia inconspicua Host., and Trichia 

 contorta (Ditmar) Rost, as given by Dr. Macbride (N. A. Slime 

 moulds, pp. 210, 211.) The sporangia shew a strong tendency 



