20 
Mycologia 
Phacopezia scabrosa Sacc. Syll. Fung. 8: 472. 1889. 
Plicariella trachycarpa Rehm, Rabenh. Krypt. FI. i 3 : 996. 1896. 
Plants gregarious or densely crowded, often forming continuous 
masses extending over many cm., at first globose, gradually open- 
ing above and becoming shallow cup-shaped with the margin in- 
curved and elevated or more rarely closely adhering to the sub- 
stratum, regular in form or cochleate and becoming very irregular 
especially when closely crowded, hymenium smooth or convolute, 
dark reddish-brown or slightly olivaceous, becoming black in 
dried specimens, externally lighter colored and rough, often 
densely verrucose, 5 mm. to 2 cm. in diameter ; asci cylindric or 
subcylindric, about 15-18//, in diameter and of variable length 
but often reaching 250-300 //.; spores i-seriate, at first smooth, 
becoming rough, roughenings taking the form of small tubercles 
or often elongated, appearing like very short interrupted ridges, 
becoming pale yellowish or smoky at maturity, about 15-18// in 
diameter; paraphyses thickened above and adhering more or less 
together at their apices, yellowish-brown. 
On burnt ground and charcoal beds. 
Type locality: Ascot Fleath, Great Britain. 
Distribution : New York to Colorado ; also in Europe. 
Illustrations: Bond. Ic. Mvc. pi. 300; Bull. Lab. Nat. Hist. 
State LIniv. Iowa 6: pi. 14, f. 1; Cooke, Mycogr. pi. 67, f. 257; 
Trans. Linn. Soc. 24: pi. 57, /. 3, 5. 
Cotype material of this species has been examined. Also 
cotype material of Peziza scabrosa Cooke has been examined and 
found to be identical. The species is common. 
19. Lamprospora nigrans (Morgan) 
Peziza nigrans Morgan, Jour. Cin. Soc. Nat. Hist. 18: 43. 1895. 
Detonia nigrans Sacc. Syll. Fung. 14: 747. 1899. 
Plants at first cup-shaped and circular in outline, becoming 
plane and more or less irregular, hymenium black or blackish, 
externally smoky-pallid and smooth, attached to the soil by 
slender fibers, reaching a diameter of 1 or 2 cm. asci cylindric 
or subcylindric and much elongated; spores 1 -seriate, at first 
smooth, becoming rather coarsely warted and reaching a diameter 
of about 9//, subhyaline to smoky-brown; paraphyses thickened 
above and dark colored. 
On burnt ground. 
