[Vor. 5 
6 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
nia, hyalina, hyphis magnis, gelatinosis, laxe contexta, non scissilia; 
asidia conspicua, oblonga, hyalina, parietibus gelatinosis, 9-16 X 
„5—8 y, mono- vel tetraspora, sterigmatibus brevibus; sporae acro- 
enae, olivaceae acervatae, singulatim hyalinae, ellipsoideae, leves, 
saepe diguttulatae, 5-82-38 д. 
Habitat sub foliis in pinetis. Idaho. Autumno. 
Type: in Weir Herb., Zeller Herb., and Dodge Herb. 
Fructifications oblate-spheroidal, 1X2 cm., not shrinking on 
drying, citrine-drab to olivaceous black(1) when fresh, drying 
darker, surface somewhat mottled due to the partial sloughing 
off of the darker outer layer, the darker places squarrose; 
fibrils scanty, innate-appressed, inconspicuous, black; pe- 
ridium thick, 300-500 д, duplex, the outer layer 100-200 y, 
Vandyke brown under the microscope, composed of large, 
loosely woven, septate hyphae, the inner layer stupose, 200- 
300 ш thick, Sayal brown under the microscope; gleba olive 
to deep olive in preserved material, drying to dark olive; cav- 
ities subglobose to irregular, empty; septa 30-35 y, hyaline, 
composed of large, loosely woven, gelatinized hyphae, not 
scissile; basidia conspicuous, oblong, hyaline, with gelatinized 
walls, 9-16X6.5-8 и, l-4-spored; sterigmata short; spores 
acrogenous, olive in mass, appearing hyaline when alone, ellip- 
soidal, 5-8 2-3 и, often 2-guttulate. 
In pine leaf mould. Idaho. September to October. 
Rhizopogon viridis presents a mottled appearance of the 
fructifications, as does R. maculatus, but the colors of the two 
species are distinct and the lighter spots on R. viridis are due 
to the inner peridial layer, while in R. maculatus they are due 
to the outer layer. The hyphae of the outer peridial layer 
have a suggestion of the condition to be found іп В. diplo- 
phloeus. 
Specimens examined: 
Idaho: Priest River, J. R. Weir, type (in Weir Herb., Zeller 
Herb., 1447, and Dodge Herb., 849). 
3. Rhizopogon pannosus Zeller & Dodge, sp. nov. 
Fructificationes caespitosae, subpiriformae vel subglobosae, et ir- 
regulares, 1.5-3 em. diametro metiens, “russet-vinaceous” vel “вог- 
ghum-brown" et “light seal-brown” (Ridgway) ubi tactae, pannis 
“sorghum-brown” (Ridgway) relietis cum hoc stratum ruptum est; 
