B. Morgani is found in like localities with B. Russelli. Excepting in its smooth, viscid cap and whitish flesh, it closely resembles the latter. The ridges in the stems of both species swell when moist.
Its edible qualities are the same as B. Russelli.
B. Be´tula Schw.—birch. Pileus convex, viscose and shining in wet weather, tessellately cracked and reticulated, orange-fawn color, rather small. Flesh yellowish-white. Tubes separating, rather large, yellow, almost like those of B. subtomentosus but not greenish. Stem long, attenuated downward, everywhere covered with a deciduous reticulated bark two lines high and separating like the bark of birches, pale-yellow without and within.
Pileus 1.5 in. broad. Stem 5–6 in. long.
Ligneous earth. North Carolina, Schweinitz, Curtis; Pennsylvania, Schweinitz. Peck, Boleti of the U.S.
During several seasons I found B. Betula in Woodland Cemetery, Philadelphia.
Edible qualities good.
Calo´podes. Gr—beautiful; Gr—feet.
Stem stout, at first bulbous, typically venose-reticulated with veins. Tubes adnate, their mouths not reddish.
The reticulate stem and adnate tubes of one color distinguish the species of this tribe. In the Luridi the mouths of the tubes are differently colored, and in the closely related Edules the tubes are more or less depressed around the stem or sub-free, and their pores are commonly stuffed when young. Fries did not admit species with whitish tubes into this tribe, but we have done so in those cases in which this was the only character to exclude them.