Seaver: Aleuria and Aleurina 
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ings taking the form of irregular and often broken reticulations, 
ridges of reticulations conspicuous and giving rise to rather sharp- 
pointed spine-like projections, terminal projections larger and 
giving the spore an apiculate appearance, entire spore 20-23 X 
10-12 n (including roughenings) ; paraphyses rather strongly 
enlarged above where they reach a diameter of about 5 
On bare ground or among mosses. 
Type locality: France. 
Distribution : Wisconsin ; also in Europe. 
Illustrations: Bull. Soc. Bot. Fr. 28: pi. 3, f. 3; Boud. Ic. 
Myc. pi. 318. 
Aleurina (Sacc.) Seaver, gen. nov. 
Phaeopezia § Aleurina Sacc. Syll. Fung. 8: 472. 1889. 
Plants medium sized, cup-shaped, fleshy or subfleshy dark- 
colored; asci 8-spored; spores ellipsoid, at first hyaline, becoming 
smoky-brown, rough, roughenings often taking the form of in- 
distinct reticulations ; paraphyses stout. 
Type species, Peziza retiderma Cooke. 
Aleurina retiderma (Cooke) 
Peziza retiderma Cooke, Mycographia 176. (1877.) 
Phaeopezia retiderma Sacc. Syll. Fung. 8: 472. 1889. 
Plants gregarious or occasionally cespitose, rather deep cup- 
shaped, regular in form or becoming irregularly contorted, irregu- 
larity often resulting from mutual pressure, at first brown and 
lighter externally, hymenium soon becoming darker and at ma- 
turity almost black, exterior also becoming darker but remaining 
lighter than the hymenium, reaching a diameter of 2-5 cm. at 
maturity ; asci cylindric above, rather abruptly tapering below into 
a stem-like base, reaching a length of 275 p and a diameter of 
12-14 /C spores i-seriate, ellipsoid, at first hyaline, smooth and 
containing one or two oil-drops, gradually becoming roughened, 
smoky-brown, roughenings usually giving rise to one large pro- 
tuberance at either end of the spore and irregular reticulate mark- 
ings over the surface of the spore, the reticulate ridges so ar- 
ranged as to give the spore a somewhat striate appearance, entire 
spore at maturity 15-17X10/C paraphyses strongly enlarged 
above, where they reach a diameter of 8 fi, minutely granular 
within and dilutely colored. 
On the ground in woods often among mosses. 
Type locality: Portland, Maine. 
