266 NATURAL HISTORY BULLETIN. 



Gregarious, sessile or with a short stem, about i cm. in 

 diameter; hymenium orange colored, externally covered with 

 very minute white hairs; asci cylindrical, 8-spored; sporidia, 

 elliptical, i-guttulate, externally covered with net-like retic- 

 ulations, giving the spore a roughened appearance, 22 to 25 

 by 12 microns; paraphyses slender, enlarged upwards, filled 

 with orange granules. 



Habitat — In sandy soil in woods with plants of Polytrichum. 

 Iowa City. 



Cups about 1 cm. in diameter generally with a short stem, 

 which tapers toward the base, generally found among plants 

 of Polytrichum. Mature spores show distinct reticulations on 

 the surface which are very regular and resemble those found 

 on the spores of Peziza aurantia Mull, except that they may 

 be finer and a little more numerous. In no available descrip- 

 tion is there any reference to the reticulate spores in this 

 species although they are always described as being rough. 

 In all other respects these plants seem to be identical with 

 those described as Peziza rutilans Fr. Among the characters 

 given in Engler-Prantl for the subgenus Alcuria are the net- 

 like reticulations of the spores. The reticulations in this 

 species are very distinct in mature specimens. 



Peziza cerea Sow. 

 Plate IX, fig. 1. 



1791 Peziza cerea Bulliard, Champ., t. II, pi. -14. 



1801 Peziza cerea Persoon, Syn. Fung. I— II, p. 643. 



L823 Peziza cerea Fries, Syst. Myc. , II, p. 4<». 



I860 Peziza cerea Berkeley, Brit. Fung., p. 363. 



1871 Peziza cerea Cooke, Handbk. of Brit. Fung., II, p. 670. 



L875 Peziza cerea Cooke, Grev. , III, p. 127, pi. 38, fig. 132. 



1887 Peziza cerea Phillips, Brit. Disc. , p. 74. 



1889 Peziza cerea Saccardo, Sylloge Fung., VIII, p. 74. 



L900 Peziza cerea Mcllvaine, Ainer. Fung., p. 558. 



Cups large, gregarious, hemispherical, or infundibuliform 

 when young, becominp- repand with age, 1 to 3 inches in dia- 

 meter, fleshy, very fragile, furfuraceus, whitish, or sometimes 

 reddish brown near the margin and slightly cleft, often with 



