74 Trans. Acad. Sci. of St. Louis. 



B. NIGRELLUS, Pk. ? (1104). 



Forsythe woods, Aug. 18, 1903. Single. Mus. Kep. 

 29, p. 44. 



Spores, narrowly ovoid, 8.5-11.5 X 4-5-"' 



B. SEPARANS, Pk. (489). 



July and August. Open woods. Boleti, U. S. Pk. 



Spores, 10-12 X ^-BA** 



B. EDULis, Bull. (349). 



June to Sept. Bare. Mus. Rep. illust. 1895. 



Spores, dingy-olive-brown, 11-14 X^-^/^* 



B. soRDiDUS, Frost, (413). 



June to August, a few scattering, in woods. 

 Spores, pale brown with pinkish tint, 11.3-13 X *-5A'« 



B. ORNATIPES, Pk. (396). 



Allenton, July and August, 1899 by Mr. Letterman. 

 Also Middlebrook, Mo. Aug. 13, 1905. Mus. Rep. 55, 

 p. 975 : pi. 80. 1901. 



Spores, light snufl-brown, 11.4X*'3M« 



B. CHRYSENTERON, Fr. ? (803). 



Forest park, June 20, 1900. Rare. 



spores, fusiform, 10-12.5 X *-5-6/i. 

 B. AURIPORUS, Pk. (1105). 



Forsythe woods, Sept. 10, 1903. Only a few speci- 

 mens. 



Spores, elliptical, 6-8 X 5-&ii- 



B. FERRUGiNEUS, Frost. ? (1106). 



Chain of Rocks, Sept. 20, 1903; Allenton, 1899, by 

 Letterman. 



Spores, very variable, 4-UX 2-6A^, usually, 7-10 X *-"• 



B. BicoLOR, Pk. (P. —474). 



Ramona park, Sept. 1905. Mus. Rep. 23, p. 78: pi. 

 2; 24, p. 78; 54: pi. 81. 

 Spores, 9-10.5 X 3-4M. 



