234 The North American Cup-Fungi 



often slightly upturned, varying in size from a few mm. when 

 young to 3 or 4 cm. when mature; hymenium at first dark reddish- 

 brown, smooth and glistening, later assuming an olive tint and 

 losing its luster, when old greenish-black (almost entirely black 

 when dried), splitting in dried specimens, giving rise to whitish 

 vein-like markings where the whitish interior is exposed through 

 the crevices, the substance soft, inclined to waxy; asci cylindric, 

 reaching a diameter of \7 fx, often spirally twisted when dry; 

 spores 1-seriate, ellipsoid, smooth, hyaline, containing one or two 

 large oil-drops, 12-14 X 25-27 fx or rarely 30-35 /x; paraphyses 

 adhering together, septate, strongly enlarged above, reaching a 

 diameter of 7-8 /x, densely filled with yellowish-brown coloring 

 matter. 



On much decayed deciduous logs of various kinds, especially 

 where they are saturated with water. 



Type locality: North Carolina. 



Distribution: New York to Wisconsin and North Carolina; 

 also in South America. 



Illustrations: Bull. N. Y. State Mus. 2: pi. 2, f. 4-6; 

 Hedwigia 43: 273,/. 1-3; (?) Boud. Ic. Myc. pi. 310; (?) Bres. 

 Fungi Trid. pi. 187. 



ExsiccATi: N. Am. Fungi 568 (as Psilopezia nummularia 

 Berk.). 



Very distinct with its adnate, dark-colored, discoid apothecia. 

 This species has been collected in New York City year after year 

 in the same place on the decaying trunk of a large tree, occurring 

 in the late summer or autumn. 



Doubtful Species 



Peziza caeruleomaculata (Rehm) Sacc. & D. Sacc. in Sacc. Syll. Fung. 18: 

 19. 1906; Plicaria caeruleomaculata Rehm, Ann. Myc. 2: 351. 1904. This 

 may be an abnormal specimen of Peziza pustulata (Hedw.) Pers. 



Humana lacteocinerea Rehm, Ann. Myc. 3: 517. 1905. A whitish 

 species reaching a diameter of 2 cm. and with coarsely verrucose spores 

 7-8 X 12-13 /i. On a pine drain in greenhouse at Madison, Wisconsin. 

 The identity of the specimens is uncertain. 



Peziza brunneovinosa Clements, Bot. Surv. Nebr. 4: 8. 1896. A brownish 

 or wine-colored species, with discoid apothecia reaching a diameter of 1.5 cm. 

 and with smooth spores 10 X 16-20 ju. On soil, Keya Paha County, Nebraska. 

 No specimen has been seen. 



Peziza chrysopela Cooke, Mycographia 156. 1877. A small species 

 described as one-half inch in diameter, subdiscoid, with pale-orange hymenium 

 and smooth spores 6 X 12 /x- On the ground in South Carolina. No specimen 

 has been seen. 



