44 THE GASTEROMYCETES OF THE UNITED STATES AND CANADA 



This species appears to be nearest L. araneosus Zeller and Dodge, which plant was 

 found by Dr. Thaxter in the mountains of North Carolina. Our plants are larger on 

 the general average than the size given by Zeller and Dodge, 6 mm. being their only 

 measurement, while ours are from 5-17 mm. thick. Their single measurement, how- 

 ever, comes within our range. In the color and the gross and minute structure of the 

 peridium the plants also agree. In the thickness and color of the tramal plates and the 

 size of the basidia and spores the plants are distinct. Zeller and Dodge give the tramal 

 plates as 40-50/* thick between hymenia while ours are 70-150/* thick, averaging about 

 100/* thick. In both plants the tramal plates are composed of three layers not including 

 the hymenium. In L. araneosus the middle of these three layers is light brown while 

 in our species it is white. The tramal plates in our plants are often scissile. The basidia 

 of L. araneosus are 6-8/* x 8-10/*; ours are 8.2-9.4/* thick and apparently without a 

 basal septum. The spores of L. araneosus are globose, 8-11/* in diameter; while those 

 of the present species are subglobose, rarely globose, 8.5-11 x 11-14/*. Dr. Dodge 

 has compared a specimen of our plant with his and thinks that there is no question but 

 that our species is new. 

 8262. Under deciduous leaves and earth, upper Laurel Hill, Oct. 19, 1927. 



Leucogaster anomalus (Peck) Z. & D. 



Hymenogaster anomalus Peck 



"Fructifications globose to irregular, 1-2.5 cm. in diameter, cinnamon-buff, clay- 

 color, and tawny olive to Mikado brown above, Hay's russet and liver-brown below, 

 'glabrous, slightly lacunose, often with a root-like strand of mycelium at the base, 

 sterile base obsolete or nearly so, odor slight, not disagreeable,' (Peck) ; per- 

 idium 240-520/* thick, grenadine to English red near the surface to hyaline within, 

 composed of very slender interwoven hyphae; gleba amber-brown to Sudan brown, 

 sometimes lighter; cavities large, mostly more than 1 mm. in diameter, subglobose to 

 irregular, empty; septa 60-120/*, composed of very closely woven, hyaline hyphae, not 

 scissile; cystidia none, paraphyses clavate, granularly guttulate; basidia clavate, 

 22-24 x 8/*, hyaline, 4-spored; spores almost sessile, dilute cream-colored to hyaline, 

 globose, 11-13/* in diameter, uninucleate, surface pitted, giving the appearance of 

 hexagonal reticulations, surrounded by a hyaline, gelatinous sheath. 



"Hypogaeous, in woods. District of Columbia. August to September." 



Leucogaster badius Mattirolo 



"Fructifications subglobose, 1 cm. in diameter, raw sienna to raw umber, surface 

 pitted, glabrous; stipe very slender, from a very slight, inconspicuous, sterile base; 

 peridium 200-340/* thick, ochraceous-bufi, stupose, composed of very slender hyphae; 

 gleba raw umber; cavities polygonal, filled with spores in a gelatinous mass due to 

 deliquescence, 0.7-1.0 mm. in diameter; septa 160-200/* thick, composed of compactly 

 woven, gelatinous, cream-colored hyphae; cystidia none; basidia hyaline, pyriform, 

 20-24 x 12/*, 4-spored, guttulate; spores almost sessile, subglobose, 12-16/* in diameter, 

 cream-colored, surface pitted, giving the appearance of hexagonal reticulations, sur- 

 rounded by a hyaline, gelatinous sheath. 



"On the ground, under leaves. Italy and New York, July and August." 



Leucogaster fulvimaculosus Z. & D. 



"Fructifications globose, 2.0-2.5 cm. in diameter, drying cinnamon-buff, spotted 

 with tawny; fibrils not prominent, few, con-colorous; peridium 375-425/* thick, simplex, 



