Of special habitats, we may allude to Nyctalis, of which the species are parasitic on dead fungi belonging to the genus russula.
russula is so named because of its likeness in color to some species of the genus russula.
Amongst the latter may be enumerated russula heterophylla, Fr., which is very common in woods.
In Lactarius and russula the trama, or inner substance, is vesicular.
The species of russula are very characteristic, and the genus is easily recognized in most cases after a little experience.
Vesiculose, full of small rounded vesicles, as the trama of the pileus of a russula.
The genus Marasmius is much addicted to dead leaves; russula, to open places in woods, springing immediately from the soil.
In some species of russula the spores are clear ochre, but such species belong obviously to russula notwithstanding.
The species of russula in many respects resemble Lactarii without milk.
There is such a strong family likeness that, finding one, he will say at once it is a russula.