82 MINNESOTA BOTANICAL STUDIES. 



Pcziza applanata Fries, Syst. ]\Iyc. 2:64. 1823. 



Gregarious, fleshy, sessile, fixed by a central point, first disk- 

 like, margin elevated, later flattened with margin wavy, edged 

 with irregular brown papillae giving slight appearance of being 

 crenulate, 5 mm. to 2 cm. in diameter; hymenium even rich dark 

 red-brown ; exterior finely pulverulent to granular, lighter colored ; 

 spores elliptical, very slightly acute, smooth, continuous, hyaline, 

 uniseriate, granulose ; 18-20x8-10 mic. ; paraphyses septate, broad- 

 ly clavate, up to 10 mic. broad. 



On damp ground or decaying sticks ; Wright, June 1900, Free- 

 man 679. 



Peziza liz'idula Phill. as described by Cooke (48, p. 161.) differs 

 only in the "lividopurpurea vel fuliginea'' color and asperulate 

 spores, while the specimens described above are dark red-brown 

 with smooth spores. The specimen cited below has spores (10- 

 12x6-8) smaller than usually given for P. applanata, while the 

 spores of the Minnesota specimens run larger than is given. Xever- 

 theless the material seems to be P. applanata (Hedw.) Fries. 



Exsiccati : Sydow, Mycoth. March. 4054 ; Plates ; Cooke, My- 

 cogr. pi. 71. fig. 272. 



6. Humaria oocardii (Kalchbr.) Cooke, Mycogr. 28 pi. 12. fig. 47. 



1879. 



Pcltidium oocardii Kalchbr. Raben. Fung. Europ. no. 521. Hedw. 

 20: 58: 216. 1863. 



Gregarious or scattered, sessile, fleshy, dingy orange-yellow, 

 waxy-gelatinous, margin entire, glabrous, up to 2 mm. wide ; hy- 

 menium smooth ; exterior granular ; spores elliptical, blunt, smooth, 

 continuous, coarsely granulate, eguttulate, 16-18x8-10 mic. ; para- 

 physes septate, clavate, numerous. 



On rotten water-soaked log ; Wright, May 1900, Freeman 646. 



The spores do not show any guttulae as is usually described for 

 P. oocardii Cooke, but are thick-walled and coarsely granulate. 

 Cooke's figure 47 agrees perfectly. 



Plates: Cooke, Mycogr. pi. 12. fig. 47. 



7. Humaria olivatra (Ellis & Holway) Sacc. Syll. Fung. 8:148. 1889. 



Nat. His. 



Peziza olivatra Ellis & Holway, Arthur, Bull. Xo. 3. Geo. & Nat. 

 His. Sur. Minn. p. 36. 1887. 



Carnose, about 2 mm. across, attached by a central point, smooth 

 and blackish outside, with the thin margin lighter ; disk concave, 



