THE DISCOMYCETES OE EASTERN IOWA. 285 



imbedded in the block of gelatine. The spores at maturity 

 are arranged in four rows in the ascus. 



Family IV— HEI,OTIACE^. 



Receptacle generally on the surface, seldom beneath the 

 epidermis, sessile or stipitate, smooth or clothed externally 

 with hairs, waxy membranaceous or thick. Apothecium com- 

 posed of thin walled, bright colored cells. At first closed then 

 expanded. Asci 8-spored; spores spherical, elliptical, or linear, 

 1 to 8-celled. Paraphyses slender. 



Genus I— S ARCOSCYPHA Fries. 



Plants generally gregarious or tufted, more or less long- 

 stocked. Receptacle generally cup-shaped, externally hairy. 

 Asci cylindrical, 8-spored; spores elliptical, seldom rough, 

 hyaline, with 1 to many guttulse. Paraphyses slender, 

 branched, enlarged above. Plants large, generally bright col- 

 ored, growing on decaying wood. 



Three species are common in woods near Iowa City. 



KEY TO THE SPECIES. 



a — Externally clothed with numerous long, rather rigid 



hairs ........ S. floccosa. 



a — Externally clothed with few, soft, flexuose hairs 



b — Cups large, stem short, thick . . .S. coccinea. 



b — Cups small, stem long, slender . . .S. occiden talis. 



Sarcoscypha floccosa {Sckw) Sacc. 

 Plate XIX, fig. i. 



1783 Peziza floccosa Batsch, Elench. Fung., p. 223. 



1875 Peziza floccosa Cooke, Grev. , III, p. 73, fig. 87. 



1880 Peziza floccosa Ellis and Everhart, N. A. Fung., I, No. 435. 



1889 Sarcoscypha floccosa Saccardo, Sylloge Fung., VIII, p. 156. 



1899 Sarcoscypha floccosa Underwood, M. M. & M. , p. 57. 



1900 Sarcoscypha floccosa Durand, Bull. Torrey Bot. Club, 27, p. 477. 

 1900 Sarcoscypha floccosa Atkinson, Mush., p. 222. 



Stipitate, infundibuliform when mature, 1 to 2 cm. in dia- 

 meter, stem .5 to 1 inch in length, margin at first incurved; 



