Annals 
of the 
Missouri Botanical Garden 
Vol. 11 NOVEMBER, 1924 No. 4 
LEUCOGASTER AND LEUCOPHLEBS IN 
NORTH. AMERICA 
SANFORD M. ZELLER 
Plant Pathologist, Oregon Agricultural College 
Formerly Visiting Fellow in the Henry Shaw School of Botany of 
Washington University 
AND CARROLL W. DODGE 
Assistant Professor of Botany, Harvard University 
Formerly Rufus J. Lackland Fellow in the Henry Shaw School of Botany of 
Washington University 
LEUCOGASTER 
Leucogaster Hesse, Jahrb. f. wiss. Bot. 13: 189-194. 1882; 
Bot. Centralbl. 40: 1-4, 33-36. 1889; Hypog. Deutschl. 1: 
68-71. 1891; Saccardo, Syll. Fung.9: 281. 1891, 14: 249. 1899, 
17: 240. 1905; Fischer in Engler & Prantl, Nat. Pflanzenfam. 
I. 1**: 311. 1899; Hollós, Magyarország Földalatti Gombai, 97- 
99. 1911.—Leucophleps Harkness, Cal. Acad. Sci. Proc. Bot. III. 
1:257-259. 1899 (in part). 
The type species of the genus is Leucogaster liosporus Hesse. 
Fructifications globose to irregular, hypogaeous to emergent, 
fleshy or waxy; fibrils sometimes present, leading to rhizomorphs; 
columella, stipe, and sterile base absent; peridium usually thin 
and fragile, sometimes rupturing at maturity; cavities frequently 
polyhedral, usually filled with spores embedded in a gelatinous 
mass; septa homogeneous, with or without a distinct trama, often 
gelatinizing at maturity; basidia from subglobose to ovoid and 
 Subeylindrie, mostly 4-spored, sometimes 3- or 5-spored ; spores 
hyaline or slightly colored, with various surface markings em- 
bedded in a gelatinous spherical mass. 
Issued May 22, 1925. 
Axx. Mo. Bor. Garb., Vor. 11, 1924 (389) 
