dryinus

Definitions

noun In entomology, the typical genus of Dryininæ, having the vertex impressed and the wings ample.
noun In herpct., a genus of whip-snakes, of the family Dryophidæ distinguished from Dryophis (which see) by having smooth instead of keeled scales.

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Berkeley describes specimens of P. dryinus with long stems growing from a hollow in an ash, and Stevenson (p. 167) reports the same condition.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886
According to the usual descriptions _corticatus_ is given as the larger species, while Fig. 109 of our plant, possessing the typical characters of _dryinus_, is the larger.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886
According to the descriptions of _P. dryinus_ as given by Persoon, and as followed by Fries and most later writers, the pileus is definitely lateral, and more or less dimidiate, while in _P. corticatus_ Fr., the pileus is entire and the stem rather long and eccentric.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886
Stevenson suggests (p. 166) that corticatus is perhaps too closely allied to dryinus.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886
= -- _Pleurotus dryinus_ represents a section of the genus in which the species are provided with a veil when young, but which disappears as the pileus expands.

Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson 1886