MINNESOTA BOTANICAL STUDIES. 



Order Pezizales. 

 Family I. Pezizaceae. 



Mycelium mostly within the substratum ; usually saprophytic ; 

 cups mainly superficial, fleshy, concave, plane or convex, sessile or 

 stipitate, exterior glabrous or hairy, smooth or rough, exciple and 

 hypothecium of similar structure, composed of loose roundish cells. 



I. PSEUDOPLECTANIA FUCKEL. 



Cups solitary or caespitose, fleshy, cupulate to saucer-shaped, 

 dark swarthy, base plicate into a short stipe; exterior tomentose; 

 spores globose, smooth, hyaline, continuous. 



I. Pseudoplectania melaena (Fr.) Sacc. Syll. Fung. 8: 165. 1889. 



Peziza melaena Fr. Syst. Myc. 2 : 60. 1823. 



Solitary or caespitose, stipitate, fleshy, to tough, closed at first 

 becoming hemispherical, expanded saucer-like but not repand, up to 

 1 :5 cm. in diameter ; hymenium smooth, grayish-black to brown- 

 black ; margin erect, entire or torn ; exterior glabrous to tomentose 

 with short thin-walled, blunt, septate, straight, brown hairs ; stipe 

 short-cylindrical, plicate into the base of the cup when dried, black, 

 rooting slightly; spores globose, smooth, hyaline, granulate, 9-13 

 mic. in diameter; paraphyses filiform. 



On fallen logs in woods, rare ; Lake, June 1893. Sheldon 4508 , 

 4583; St. Louis, June 1903, Sheldon 4429. 



\ Vtry closely related to Ps, nigrella (Pers.) Fuckel, Thiimen, My- 

 ^cotH. Univ. 18, from which it differs only in that it is stalked and 

 •dees not grow upon the ground. The tomentose character is not so 

 •distinct, as some of the specimens are nearly glabrous and the mar- 

 gin has no fringe of hairs. 



Plates : Rehm, Raben. Krypt. Fl. 1:3: 1030. fig. i ; Cooke, My- 

 cogr. pi. 49. fig. 193. Alb. & Schw. Consp. fung. Nisk. pi. 5. fig. 2 ; 

 Boudier, Icones Mycol. 2. pi. 343. 



2. PLICARIELLA LINDAU. 



Cups gregarious or caespitose or solitary, fleshy, mainly small, 

 sessile, concave to plane ; exterior smooth or rough, not hairy ;• spores 

 globose, smooth or rough, hyaline, continuous. 



