Seaver: Study of Genus Lamprospora 13 
very slightly elongated, spines conspicuous, irregular in length, 
broad at the base and tapering to a very sharp point at the apex, 
often 2 or 3/* long, in dried specimens becoming bent and ad- 
pressed to the sides of the spore but regaining their normal form 
when wet, entire spore 18-22 ^ in diameter (including spines), 
hyaline ; paraphyses thickened at their apices. 
On clayey soil. 
Type locality: Europe. 
Distribution: New York to Delaware, West Virginia and 
Colorado ; also in Europe. 
Illustrations: Ann. Rep. N. Y. State Mus. 24: pi. 3, /. 10-13; 
Ann. Sci. Nat. IV. 10: pi. 13, f. 12-15 ; Boud. Ic. Myc. pi. 404, 
405 ; Bull. Lab. Nat. Hist. State Univ. Iowa 6: pi. 12, f. 4; Cooke, 
Mycogr. pi. 6, f. 22, 23. 
Exsiccati : Ellis, N. Am. Fungi 840 (as Peziza echinosperma 
Peck) ; Ellis, N. Am. Fungi 841 (as Peziza modesta Karst.) ; 
Clements, Crypt. Form. Colo. 115 (as Detonia modesta). 
In addition to the synonyms previously published, the writer 
has examined cotype specimen of Peziza echinosperma Peck and 
finds it to be identical with the above. 
8. Lamprospora tuberculata Seaver, Mycologia 4: 47. 1912 
Plants gregarious in small clusters, not crowded but rarely 
with two or three in close contact, at first globose and almost 
buried in the sandy soil on which they grow, when young taper- 
ing above or subconic in form, with the hymenium gradually ex- 
panding and at maturity plane or nearly so, often with a fringe- 
like border and roughened by the protruding asci which appear 
above as minute white spines, superficial but with the base still 
nestling in the substratum, about .5 mm. in diameter or rarely 
attaining a diameter of nearly 1 mm. ; asci cylindric or sub- 
cylindric, slightly narrowed near the apex, and tapering below 
into a stem-like base, 25-28 n in diameter and about 275-300 /x 
long; spores i-seriate, at first smooth and usually with one large 
oil-drop, gradually becoming rough, at maturity very coarsely 
tuberculafe, tubercles covering the surface of the spore and ap- 
pearing about its margin like great lumps often projecting further 
in one place than another giving the spore an irregular outline, 
individual tubercles about 3-4 /x in diameter, giving rise to 12 or 
rarely 14 or 15 lobes about the periphery of the spore, entire 
spore 18-20 jx in diameter at maturity, hyaline ; paraphyses en- 
