possess it than the former, devouring the larger proportion of the inside so completely as to leave only the pileus and pores to the vicissitudes of the weather. The character of "superne læevis" (Linn.) does not quite agree with either of these plants. This is always more or lefs downy, though the B. falicinus in the latter state is often nearly smooth. This and the two preceding exhale a fragrant scent till they become quite dry.
TAB. CCXXIX.
BOLETUS versicolour. Linn.
Whether this plant found on the oak, or those so frequent on the willows, be what Linnæeus intended, has created some doubts. I think this is exactly his B. versicolor., and it may very well include the thinner varieties that grow on the willow. The pileus in the former is of a tawny colour, in the latter grey or blueidh. I have a Boletus altogether of a tawny hue, which seems less acceptable to insects, and which I believe is a variety. The two first are constantly eaten by insects. They prefer the thickest, not despising any that has the least substance between the pileus and pores. All these varieties are covered with different degrees of pubescence, either plush-like or satiny, in concentric zones; the variety of whose colours adds much to the effect of light and shadow caused by their relief.
TAB. CCXXX.
BOLETUS pelloprus. Bull. 501, fig. 2.
This and the following plant seem very nearly related. The figures of Bulliard, with my specimens, make me think them species. In the more perfect state than figured by Bulliard they are without black pores, which seem the effect of decay.
