Hone: pezizales, phacidiales and tuberales of minn. 87 



exterior whitish, coarsely granulate or verrucose with nodules ; 

 base more or less plicate ; spores elliptical ; smooth, hyaline eguttu- 

 late, uniseriate, granulate when mature, 18-20 x 10 mic. ; asci do not 

 stain blue with iodine; paraphyses slender, gradually clavate, septate, 

 granulate, brown at apex. 



On ground in humus under oak trees ; Hennepin, May 1908. Hone 

 1014. 



The Minnesota specimens show asci which are very young and 

 most of the spores immature, but all characters seem to agree with 

 those given for P. vcnosa Pers. 



Exsiccati : Saccardo. Mycoth. Ital. 332 : Plates : Bond. Icon. My- 

 col. H. pi. 254; Cooke, Mycogr. pi. 58. fig. 228. 



8. ACETABULA FUCKEL, 



Cups solitary, fleshy, large, stipitate, cupulate ; stipe short, thick, 

 sulcate; exterior minutely scurvy, ribbed with anastomosing veins 

 running up from the stipe ; spores elliptical to oval, smooth, hyaline, 

 continuous. 



I. Acetabula vulgaris Fckl. Symb. Myc. 330. 1869. 



Pezisa acetabulum Linn. Spec. Plant. i:ii8i. 1753. 



Solitary, stipitate, cup-shaped, fleshy, up to 2 cm. in diameter; 

 hymenium umber-brown even ; exterior paler to whitish, minutely 

 scurvy; stipe whitish imperfectly hollow, sulcate, with parallel or 

 anastomosing ribs which run up over the exterior of the cup, as 

 branching veins, glabrous, i cm. high ; spores nearly globose, hya- 

 line, smooth, one large guttula, 12x9 mic; paraphyses straight, 

 slender and clavate. 



On ground in leaf-mould in moist woods ; Hennepin, Sheldon. 



The spores are small for P. acetabulum L. but Rehm, Durand 

 and Seaver all pronounced the Minnesota specimens to be P. acetab- 

 ulum L. Kalkbrenner (no, p. 268, pi. 4. fig. 3), describes P. costata 

 and figures it with the spores nearly globose. His figures agree 

 perfectly with the Minnesota specimens. Perhaps P. costata should 

 be included as a variety of P. acetabulum L. in which case the Min- 

 nesota specimens as well as some found in St. Croix Co., Wis. 

 (Hone 784), would come under the variety. Rehm considers P. 

 costata as identical with P. acetabulum L. 



Exsiccati: C. Roumeguere, Fungi selecti. 4161 {Peziza (aleuria) 

 acetabulum L. form sylvatica.) Plates: Kalkorenner, Szepesi 

 Gombak. Jegyzeke H. pi. 4. fig. 3 ; Gill. Disc. Fr. pi. 32. fig. i ; 



