Seaver: Discomycetes of North Dakota 107 



Observed by the writer from material collected by one of the 

 students of the Agricultural College. 



2. PEZIZINEAE 



2. Pyronema 



Pyronema omphalodes (Bull.) Fuckel. Forming salmon- 

 colored patches often several cm. in diameter on soil where wood 

 or rubbish has been burned. While the individual plants are 

 small they run together so closely that they present the appear- 

 ance of one continuous mass which is surrounded by a spider- 

 web-like halo of mycelium. The species was collected often in 

 North Dakota about Sykeston on damp soil where there was no 

 apparent trace of fire, but the places had doubtless been burned 

 over, as the plants are usually restricted to burnt places. Also 

 collected elsewhere on soil which had been sterilized by heating. 



3. Lachnea 



Lachnea scutellata (L.) Sacc. Saucer-shaped plants as 

 large as 1 cm. in diameter with a bright red hymenium sur- 

 rounded by a border of dark-colored hairs. On wood and the 

 surrounding soil. Collected at Sykeston. 



Lachnea setosa (Nees) Sacc. Occurring often closely 

 crowded on decaying mossy logs in woods. Similar to the pre- 

 ceding but plants one-third as large and hairs much longer. Col- 

 lected on old box-elder logs in woods near Fargo. 



Lachnea hemispherica (Wigg.) Gill. Hemispherical plants 

 about the size of a large acorn-cup, growing on moist soil in 

 shaded places in woods. Inside of cup whitish or bluish-white, 

 externally clothed with chestnut-brown, bristly hairs. Collected 

 in woods near Fargo. 



4. Sarcoscypha 



Sarcoscypha coccinea (Jacq.) Cooke. Plants found in 

 woods in spring attached to partially buried sticks. Inside of 

 cups, which are often 3 cm. or more in diameter, brilliant scarlet, 

 outside whitish and more or less downy with soft white hairs. 



