[Vor. 5, 1918) 
36 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
EXPLANATION OF PLATE 
PLATE 3 
Fig. 1. Diagrammatic section of Rhizopogon roseolus; Х 10. 
Fig. 2. Showing the gelatinized basidia and long sterigmata of 
К. roseolus ; Х 800. 
Fig. 3. Showing nuclear positions in the spores of R. roseolus ; 
Х 2400. 
Fig. 4. Diagrammatic section of R. induratus; X 100. 
Fig. 5. Showing the basidia and spores of R. induratus ; X 800. 
Fig. 6. Diagrammatic section of В. angustisepta; X 50. 
Fig. 7. Showing basidia of R. angustisepta embedded in a gelat- 
inous matrix, and spores; 30. 
Fig. 8. Diagrammatie section of R. rubrocorticeus; X 10. 
Fig. 9. Showing База and spores of R. rubrocorticeus ; X 830. 
