84 MINNESOTA BOTANICAL STUDIES. 



coming expanded and flattened, greyish-white all over, up to 1.5 

 cm. diameter ; margin even, incurved, wavy ; hymenium smooth ; 

 exterior minutely pruinose to granulose, plicate at base to form a 

 short thick stipe, which is sometimes inflated or discoid at the base; 

 spores narrowly elliptical-fuscoid, acute, hyaline, smooth, some- 

 times as many as 5 guttulae, 20-30 x 4-6 mic. ; paraphyses filiform. 



On decaying and dead logs; Becker, Aug. 1901, Freeman 1056. 



Cooke (48. p. 61.) states "The tomentose coating is very delicate 

 and inconspicuous." In the formalin material no trace of it can 

 be seen, but the exterior appears simply granulose or pruinose. The 

 specimens are closely related to Pccica sylvatica Karst. and Pcziza 

 pallidnla C. & P., differing mainly in the acute elliptical-fuscoid as 

 well as larger spores. This species is also multiguttulate. 



Plates: Cooke, Mycogr. pi. 28: fig. 108. 



2. Geopyxis pallidula (Cooke) Sacc. Syll. Fung. 8: 70. 1889. 



Pccha pallidula Cooke & Peck, Buff. Bull. Acad. Sci. 288. 1875. 



Solitary, substipitate, fleshy, waxy, cup infundibuliform becom- 

 ing flattened, up to 1.5 cm. diameter; to i cm. high; margin darker, 

 thin, smooth, incurved, wavy ; hymenium even, watery-dingy-white ; 

 exterior sub-farinose, dingy-white ; stipe short, thick, abbreviated ; 

 spores elliptical, obtuse, smooth, eguttulate, hyaline, 12-16x6-7 

 mic. ; paraphyses slender, clavate. 



On water-soaked log; Wright, IMay 1900, Freeman 652. 

 Plates : Cooke, Mycogr. pi. 75. fig. 289. 



3. Geopyxis sylvatica (Karst.) 



Pcciaa sylvatica Karst. Alyc. Fenn. 58. 187 1. 



Gregarious, shortly stipitate or sessile, fleshy, up to 2.5 cm. diam- 

 eter ; I cm. high, when young or fresh gray to light yellow, now old 

 or preserved a dark brown all over ; exterior pruinose ; spores ellip- 

 tical, obtuse, smooth, eguttulate, 12-14x8 mic; paraphyses septate, 

 clavate. 



On log, common ; Goodhue, Aug. 1893, Anderson 787. 



Related closely to Pczica micropodcs Pers. (Syn. meth. fung. 

 p. 642. j and Pcziza Icpidota Fr. (Sys. myc. 2: 54.). 



Plates : Cooke, jMycogr. pi. 65. fig. 250. 



4. Geopyxis cupularis (L.) Sacc. Syll. Fung. 8:72. 1889. 

 Pcziza cupularis Linn. Sp. PI. i : 1181. 1753. 



Solitary, shortly stipitate, fleshy, cupulate to campanulate, con- 

 cave. 1.5 cm. in diameter and high; margin erect, thin, irregularly 

 crenulate ; hymenium gray with yellow tinge, even ; exterior lighter 



