MYCOLOGIA 
Vol. VI November 1914 No. 6 
NORTH AMERICAN SPECIES OF ALEURIA 
AND ALEURINA 
(With Plates 142-144, Containing 10 Figures) 
Fred J. Seaver 
The genus Aleuria was founded by Fuckel, and originally com- 
prised the two species Aleuria aurantia (Pers.) Fuckel and 
Aleuria rhenana, the latter species described by the author of the 
genus. The genus has been used in various w T ays but in recent 
years has come to be restricted by some writers to the reticulate- 
spored species of Pezizeae and in this sense it is here employed. 
Four such species are known to North America, all of which are 
characterized by the bright orange color of the hymenium with 
the whitish exterior. The habitats of the dour species are quite 
distinct and three of these are shown in the accompanying photo- 
graphs. 
Aleurina was used by Saccardo as a subgenus of Phaeopezia 
and differs from Aleuria in that the spores are colored. While 
the reticulations in the spores of the type species are less distinct 
than in the various species of Aleuria, there is a strong resem- 
blance between the markings of the spores of the various species 
of Aleuria and the type species of Aleurina, which is here re- 
garded as a distinct genus. Peziza retiderma, which was made the 
type of Saccardo’s subgenus, was originally described from mate- 
rial collected at Portland, Maine. Recent collections of this 
species at Portland, Connecticut, has furnished material for the 
accompanying illustrations and descriptions. 
[Mycologia for September, 1914 (6: 221-272), was issued September 26, 1914.] 
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