94 NATURAL HISTORY BULLETIN 



original description and illustration the color appears to be quite 

 variable ranging from olivaceous-green to brownish or purplish 

 but never so decidedly green as in Chlorosplenium aeruginosum 

 (Oeder) DeNot. 



CIBORIA Fuckel, Symb. Myc. 311. 1869. 



Cups scattered, firm, often with a long stem, of medium size, 

 waxy, externally smooth, or furfuraceous, hymenium concave or 

 plane; color variable; asci elongated, 8-spored; spores oblong- 

 oval, cylindrical or lanceolate, simple, hyaline; paraphyses pre- 

 sent variable. 



Plants larger and stem stronger than in the genus Phialea. 

 One species reported from the state. 



Ciboria sulphurella (Ellis & Everh.) Rehm; Durand, Bull. 

 Torrey CI. 29 : 461. 1902. 



Helotium sulphurellum Ellis & Everh., Bull. Torrey CI. 10: 

 98. 1883. 



Plants gregarious, stipitate ; stem variable in length, sometimes 

 as long as 2 cm. and slender, but often very short; cups 2 to 5 

 mm. in diameter, a little concave or nearly plane; plants very 

 variable in color often sulphur-yellow when fresh with a tinge of 

 green; hymenium darker becoming reddish or reddish-brown, 

 when dry entire plant almost black ; asci clavate, 8-spored, 75 by 

 8/x; spores 1-seriate with the ends overlapped, elliptical, nar- 

 rowed at the ends, 10 to 12 by 3 to 4/x. 



On petioles of ash (Fraxinus) Mt. Pleasant, common. Iowa 

 City, Macbride. 



The plants of this species were found to be abundant and quite 

 attractive from their variable color. The species has been col- 

 lected by the writer in New York and North Dakota and prob- 

 ably occurs coextensive with the host. 



SCLEROTINIA Fuckel, Symb. Myc, 1 : 330. 1869. 



Plants for the most part medium large, single or in clusters 

 springing from a sclerotium formed in the stems, leaves or fruits 

 of plants; sclerotium resting over winter; cups at first closed, 



