1924] 



BURT — THE THELEPHORACEAE OF NORTH AMERICA. XIII 23 



walled; basidia simple, 30 X 6 \i, with 4 slender sterigmata; 

 spores hyaline, even, cylindric or slightly curved, 73/^-10 X 4- 

 53^ IX, usually 9 X 5}/^ IJ<- 



Fructifications 700 [k high, 200-300 [i in diameter. 



On bark of rotting oak. California. May. 



The fructifications are colored like those of S. poriaeformis 

 but in other respects are more like S. anomala when growing on 

 pustules and crevices of the bark. 



Specimens examined: 

 California: Avalon, Santa Catalina Island, L. W. Nuttall, S96, 



type (in Field Mus. Nat. Hist. Herb., and Mo. Bot. Card. 



Herb., 57610). 



9. S. poriaeformis (Pers.) Fries, Hym. Eur., 597. 1874; 

 Winter in Rabenhorst, Krypt.-Fl. 1: 391. 1884; Bourdot & 

 Galzin, Soc. Myc. Fr. Bui. 26: 226. 1910. 



Peziza poriaeformis Pers. T of Peziza anomala Pers. Syn. Fung. 

 656. 1801. — P.? poriaeformis (Pers.) De Candolle, Fl. France 6: 

 26. 1815; Fries, Syst. Myc. 2: 106. 1823.— P. tephrosia Pers. Myc. 

 Eur. 1: 271. 1822. — Solenia poriaeformis (DC.) Fuckel, Symb. 

 Myc. App. 1 : 290. 1872.— Sacc. Syll. Fung. 6: 428. 1888; Coker, 

 Ehsha Mitchell. Scientif. Soc. Jour. 36: 151. pi 15, pi. 30. f. 4-6. 

 1921 ; Rea, Brit. Basid. 703. 1922. — An Peziza pruinata Schweinitz, 

 Naturforsch. Ges. Leipzig Schrift. 1 : 120. 1822?— An P. Daedalea 

 Schweinitz, Am. Phil. Soc. Trans. N. S. 4: 174. 1832? 



Illustrations : Bref eld, Untersuch. Myk. 7: pi 11, f. 21. 1888 ; 

 Coker, loc. cit. 



Fructifications about 1 mm. high, cinereous, light neutral 

 gray or hair-brown, cup-shaped, sessile, hairy, more or less 

 crowded, 2-4 to a mm., seated on a grayish mycelium; hymenium 

 pale gray, concave; flesh thin, brownish; basidia simple, with 

 2-4 sterigmata; spores hyaline, even, subglobose, 43^-63^2 X 43^^- 

 5 {x. 



On decaying limbs and logs of frondose species. Europe, New 

 Jersey to Alabama, and in Minnesota. April to January. In- 

 frequent. 



This species covers small areas 1-3 cm. long by 3^-1 cm. broad 

 on bark of oak, birch, maple, grape, etc. It has the aspect of a 



