Hone: pkzizales. piiacidiales and tuberales of minn. 115 



hypothallus is formed of dense black tomentum, or hairs which in 

 some specimens are very apparent on the substratum. 



Growing on buried and decaying sticks of various kinds, very 

 abundant in the early spring everywhere; Hennepin, May 1877, 

 Johnson 633 {P. puUulns n. sp. not preserved); Hennepin, April- 

 Sept. 1898, Sheldon 4324, 4649, 5819, 5822; 1899, Freeman 307; 

 1901, Freeman 988: 1899. Butters; 1899, Wheeler; 1903, Nelson; 

 1906, Hone 797; Ramsey, April-May, 1892, Sheldon 1971 ; Cass, 

 May 1900, Freeman 575. 



Lindau (124, p. 185.) places Urniila crateriimi (Schw.) Fries un- 

 der Pezi::a craterium Schw. in the subgenus Geopy.vis, but our 

 specimens do not agree with the characters as given by Lindau for 

 Geopy.vis as has been so clearly pointed out by Elsie M. Kupfer 

 (119, p. 137-144.) : "the texture of the apothecium of Geopy.vis is 

 described as fleshy, the stem as short and sometimes thin; while in 

 this plant the leathery character of the cup and the length and thick- 

 ness of the stem are its noticeable features ; one of its most charac- 

 teristic points is the dense black tomentum which serves as a hypo- 

 thallus." Durand (67, p. 463-495. pi. 1.2.) describes and figures the 

 structural characters of the apothecium of the Pczizaceae as wholly 

 pseudoparenchymatous with no development of excipulum. Miss 

 Kupfer. 1. c. figures the same for Geopy.vis carhonaria but also holds 

 that U. craterium has both hypothecium and excipulum which are 

 mainly prosenchymatous, the chief reason for excluding this species 

 from the genus Geopy.vis. Urmda craterium must be left where 

 Fries first placed it in the family Ceuangiaceae, although no true 

 epithecium has been observed nor does it possess an erumpent habit. 

 Exsiccati : Ellis, North American Fungi. 982. Plates : Schwein. 

 Syn. Fung. Carol, tab. i. fig. 7-1 1; Seaver, Discom. Eastern Iowa, 

 pi. 25. fig. 2.; Boudier, Bull. Soc. Myc. France, tom. 14. pi. 11. f. 3. 



