DISCOMY^ETES OF NORTH DAKOTA 



Fred. J. Seaver 



The following is a list of the discomycetes (cup-fungi) collected 

 and studied in North Dakota during the seasons of 1907-8. 

 When not otherwise indicated the collections were made by the 

 writer. 



Hymenium exposed from the first, plants not usually cup- 

 shaped, disc-shaped, boat-shaped or linear. 1. Helvellineae. 

 Hymenium at first closed, plants cup-shaped, disc-shaped, 

 boat-shaped or linear, opening by a circular, star- 

 like or slit-like aperture. 

 Hymenium exposed at an early stage, plants cup-shaped 



or disc-shaped. 2. Pezizineae. 



Hymenium long, enclosed in a firm covering, opening 

 with a star-like or slit-like aperture. 

 Opening for the most part with a star-like aper- 

 ture. 3. Phacidiineae. 

 Opening with a slit-like aperture. Plants boat- 

 shaped or linear. 4. Hysteriineae. 



1. Helvellineae 



Plant large, consisting of a stem and globose pitted 



head. 1. Morchella. 



2. Pezizineae 

 Plants small, 1-2 mm. in diameter, forming orange or 

 salmon-colored masses 1—3 cm. in diameter on burnt 

 soil. 2. Pyronema. 



Plants not forming confluent masses and not usually 

 occurring exclusively on burnt soil (except a 

 few species not here recorded). 

 Externally clothed with dark-colored bristly hairs. 3. Lachnea. 

 Externally naked or hairs when present light- 

 colored, usually white. 

 Plants large, 1-8 cm. in diameter, cup-shaped, 

 urn-shaped or saucer-shaped. 

 Plants stipitate, often attached to sticks in 

 woods. 



Within scarlet, without whitish, slightly 



hairy. 4. 

 Within and without dark brownish-black. 5. 

 Plants sessile, on wood, soil, etc. 



* Often included with the Phacidiineae. 



104 



Sarcoscypha. 

 Urnula.* 



