1918] 
‘ZELLER AND DODGE—RHIZOPOGON 19 
Type: loeation unknown to us. 
Fructifications cespitose, ovate, or irregularly globose, 1-6 
cm. in diameter when fresh, 1-5 cm. when dry, color white at 
first, then livid yellow, reddening in air (Tulasne), and dry- 
ing Morocco red to claret-brown or almost black where 
touched; odor weak or almost none (Tulasne) ; fibrils incon- 
spicuous, innate-appressed above, simple, large, rhizomorph- 
like below, at first white (Tulasne), then reddening and be- 
coming almost black; peridium thin, about 160-220 y, simplex, 
compact, brittle, very dark tawny; gleba at first white 
(Tulasne), then melleus to Isabella-color, brittle; cavities 
subglobose to labyrinthiform and irregularly crowded, empty ; 
septa narrow, about 40-50 u broad, hyaline, usually not scis- 
sile until old; basidia pyriform or clavate, 2-8-spored, 12-14 
и long; sterigmata about as long as the spores; spores acrog- 
enous, ochraceous-tawny in mass, hyaline or cream-colored 
under the microscope, ellipsoidal, 5-10 3-4.5 и, 1-2-guttulate, 
smooth. 
In sand under pines. Cosmopolitan. Autumn or winter, 
according to latitude. 
Specimens examined: 
Exsiccati: Roumeguére, Fung. Gall. Exsice., 3826, under the 
name Rhizopogon provincialis; Ellis, N. Am. Fung., 943 
(in U. S. Dept. Agr., Bur. Pl. Ind. Path. Coll, but not 
copies in Mo. Bot. Gard. Herb. nor in Burt Herb.). 
Sweden: C. G. Lloyd (in Lloyd Mus., 03757). 
Germany: Brandenburg, O. Jaap, 12 (in Lloyd Mus., 03904). 
England: Hampshire, Lundhurst, C. E. Broome (in Lloyd 
Mus., 1279). 
France: Nice, C. Rowmeguére, in Roumeguére, Fung. Gall. 
Exsice., 3826 (in Mo. Bot. Gard. Herb., 5640); Barla (in 
Lloyd Mus., 5334). 
Italy: Verona, S. Manro d' Saline, C. Massalongo, 5 (in Lloyd 
Mus., 06084) ; Como, O. Mattirolo, 8 (in Lloyd Mus., 03718). 
Massachusetts: Boston, H. Page (in Lloyd Mus., 5899, 5900). 
New York: Albany Co., Karner, C. H. Peck (in Coll. N. Y. 
State); Ithaca (in Atkinson Herb., 14053). 
