162 The Ottawa Naturalist [Feb. 



culatum Rost. On dead leaves, cedar twigs and living fern 

 fronds, Exp. Farm. 



Diderma spumarioides Fries. On grass stems and dead 

 and living leaves, Beaver Meadow. 



Diderma crustaceum Pk. On dead leaves and bark, Exp. 

 Farm and Beaver Meadow. 



Stemonitis maxima Schw . Boom Rd., Chelsea; Exp. Farm. 



Stemonitis Smithii Macbr. Exp. Farm. This species and 

 the preceding were gathered a number of times ne ir the Farm, 

 being the ones most commonly met with. 



Stemonitis splendens Rost. 5. Morgani Pk. This hand- 

 some species was only met with once, on a tree-stump near the 

 Exp. Farm. The mass of sporan ia covered an area several 

 inches square. 



Stemonitis jene strata Rex. Exp. Farm. 



Stemonitis herbatica Pk. Exp. Farm. 



Comatricha stemonitis (Scop.) Sheld. C. iyphina (Pers.) 

 Rost. Exp. Farm. 



Diachea leucopoda (Bull.) Rost. Carlston Place (M), West 

 End Park (M). 



Reticularia Lycoperdon Bull. Only met with once on a 

 stump near the Exp. Farm. The aethalium was a large one 

 measuring about 2\ in. in diameter. 



Enteridiwm splendens Morg. E. rozeanum Wing. On twigs, 

 rotting boards, and tree stumps. Met with rather frequently in 

 various place near the Exp. Farm ; also at Rockcliffe, Kind's Mt., 

 and Ironsides (M). 



Tubijera jerruginosa (Batsch) Macbr. Tubulina fragiformis 

 (Pers.) List. Exp. Farm. 



Tubijera stipitata (Berk, and Raw) Macbr. Tubulina stip- 

 itata (B. & R.) Rost. Exp. Farm; Beaver Meadow. 



Cribraria sp. One or two species of this genus were col- 

 lected but were too much weathered to permit of further deter- 

 mination. 



Dictydium cancellatum (Batsch) Macbr. D. umbilicatum 

 Schrad. Exp. Farm. 



Lycog:la epidendrum (Buxb.) Fries. Probably the com- 

 monest myxomycete in the district, being found almost every- 

 where where a search was made. As might have been expected 

 the Old Boom Rd., Chelsea, furnished a very luxuriant crop of 

 this species but at no time during the past season when observa- 

 tions were made, were the aethalia so abundant as in the latter 

 part of June, 1910. At that time one could find large areas 



