Subtribus

Fries devided^([sic]) this tribus into two subtribus, viz. Rhodopolii and Plutei. In accordance with the International Code of Botanical Nomenclature (I.C.B.N.) art. 22.4 these subtribus are to be typified with Agaricus rhodopolius and A. pluteus respectively.

It might therefore be justified to separate them from the remaining genera of the subfamily Lithosinae as a tribus with two subtribus, or as two tribus.

The differences in the constituents in the two subtribus are not very clear.