Fleshy, lateral, tubes crowded but distinct.
Polyporus. Page [479].
Stratum of tubes distinct from hymenophore, but not separable, not stratose; fleshy and tough, stipitate or sessile.
Fomes.
Tubes as in Polyporus, often stratose; woody, sessile; dimidiate. (No edible species reported.)
Polystictus.
Tubes as in Polyporus, not stratose, generally developing from the center to the margin, at first shallow and punctiform, coriaceous or membranaceous. (No edible species reported.)
Poria.
Tubes as in Polyporus, not stratose; entirely resupinate. (No edible species reported.)
Mucronoporus.