Seaver: Study of Genus Lamprospora 
21 
Type locality: Preston, Ohio. 
Distribution : Known only from the type locality. 
The species is distinguished from L. trachycarpa to which it is 
closely related by the smooth exterior of the plants and the very 
small size of the asci and spores. Cotype material has been 
studied. 
20. Lamprospora leiocarpa (Curr.) 
Pesisa leiocarpa Curr. Trans. Linn. Soc. 24: 493. 1864. 
Plkaria foveata Fuckel, Symb. Myc. 326. 1869. 
Detonia leiocarpa Sacc. Syll. Fung. 8: 105. 1889. 
Detonia foveata Sacc. Syll. Fung. 8: 105. 1889. 
Plicaria leiocarpa Rehm, Rabenh. Krypt. FI. i 3 : 994. _ 1896. 
Plants gregarious, at first globose and closed, opening and be- 
coming shallow cup-shaped, at length almost entirely flattened, 
and irregularly undulated and lobed, hymenium olivaceous-brown ; 
asci clavate, becoming subcylindric ; spores at first irregularly 
2-seriate, becoming 1 -seriate at maturity, globose, hyaline, re- 
maining entirely smooth, usually with one large oil-drop, about 
10-12 /u in diameter; paraphvses enlarged above and adhering 
together. 
On burnt ground. 
Type locality: Ascot Ffeath, Great Britain. 
Distribution: California; also in Europe. 
Illustrations: Trans. Linn. Soc. 24: pi. 57, /. 4, 6; Boud. Ic. 
Myc. pi. 304. 
Cotype material of this species has been examined. The only 
American specimens examined were collected by Dr. Harkness in 
California. This species differs from L. trachycarpa, which it 
resembles, in having permanently smooth spores. 
21. Lamprospora Planchonis (Dun.) 
Plicaria Planchonis Dun, ; Boud. Bull. Soc. Myc. Fr. 3 : 92. 1887. 
Plants gregarious or scattered, sessile, hemispherical or nearly 
plane, usually regular in form but occasionally irregularly con- 
torted, margin rough, exterior of cups minutely roughened or 
warted, entire plant very dark purple, exterior almost black, 
hymenium a little lighter, flesh with transmitted light bright 
