[Vor. 5, 1918] 
30 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
3. Rhizopogon Leonis Payer, Bot. Crypt. 100. f. 462. 1850, 
is Terfezia Leonis Tulasne, Ann. Sci. Nat. III. 3: 350. 1845; 
and in Durieu de Maison-Neuve, Expl. Sci. de l'Alg. Bot. 1: 
432. pl. 24. f. 22-30. 1846-1849. 
4. Hydnangium aurantium (Harkness) Zeller & Dodge, 
comb. nov. 
Rhizopogon aurantius Harkness, Proc. Cal. Acad. Sci. III. 
1 : 257. 1899; Saccardo, Syll. Fung. 16 : 251. 1902. 
Type: in Dudley Herb. at Leland Stanford Jr. Univ. 
Fruetifieations solitary, subglobose, 2 cm. in diameter, 
**dirty white when fresh"! (Harkness), drying yellowish (the 
specimens in alcohol, however, are dark brown); peridium 
180-200 ш thick, homogeneous, but outer hyphae becoming 
brown; gleba **orange when fresh'' (Harkness), now (Deo., 
1917) auburn when wet with alcohol, becoming pale orange- 
yellow when drying out; cavities globose, large in the center, 
empty; septa 150 џ thick, composed of gelatinizing, closely 
woven, hyaline hyphae, scissile; basidia clavate, hyaline, 
gelatinous, 2-8-spored; sterigmata 10-11 д long, slender; 
spores dilute olivaceous to subhyaline, rough, globose, 15 д 
in diameter (8-10 д, teste Harkness). 
In dense forests of Sequoia. California. August. 
Specimens examined: 
California: Marin County, Mt. Tamalpais, H. W. Harkness, 
74, type (in Dudley Herb. at Leland Stanford Jr. Univ.). 
