a Fries.
Gomphidius Fries.
Anthracophyllum Ces.
Montagnites Fries.

II.--POLYPORACEAE (Polyporei).

GENERA.

Boletus Dill.
Strobilomyces Berkeley.
Boletinus Kalchbr.
Gyrodon Opatowski.
Fistulina Bull.
Polyporus Mich.
Fomes Fries.
Polystictus Fries.
Poria Pers.
Trametes Fries.
Hexagonia Fries.
Daedalea Pers.
Myriadoporus Peck.
Ceriomyces Corda.
Bresadolia Speg.
Cyclomyces Kunz.
Favolus Fries.
Gloeoporus Mont.
Laschia Fries.
Merulius Hall.
Theleporus Fries.
Porothelium Fries.
Solenia Hoffm.

III.--HYDNACEAE (Hydnei).

GENERA.

Hydnum Linn.
Caldesiella Lace.
Hericium Pers.
Tremellodon Pers.
Sistotrema Pers.
Irpex Fries.
Radulum Fries.
Plebia Fries.
Lopharia K. & M. Ow.
Grandinia Fries.
Grammothele B. & C.
Odontia Pers.
Kneiffia Fries.
Mucronella Fries.

IV.--THELEPHORACEAE (Thelephorei).

GENERA.

Craterellus Fries.
Hypolyssus Pers.
Thelephora Ehrh.
Cladoderris Pers.
Beccariella Ces.
Stereum Pers.
Hymenochaete Lev.
Skepperia Berk.
Corticium Fries.
Peniophora Cooke.
Coniophora D. C.
Michenera B. & C.
Matula Mass.
Hypochnus Fries.
Exobasidium Weron.
Helicobasidium Pat.
Cyphella Fries.
Friesula Speg.
Cora Fries.
Rhipidonema Matt.

V.--CLAVARIACEAE (Clavariei).

GENERA.

Sparassis Fries.
Acartis Fries.
Clavaria Vaill.
Calocera Fries.
Lachnocladium Lev.
Pterula Fries.
Ptifula Pers.
Pistallaria Fries.
Physalacria Peck.

VI.--TREMELLACEAE (Tremellini)

GENERA.

Auricularia Bull.
Hirneola Fries.
Platygloea Schroet.
Exidia Fries.
Ulocolla Bref.
Craterocolla Bref.
Femsjonia Fries.
Tremella Dill.
Naematelia Fries.
Gyrocephalus Pers.
Delortia Pat. & Gail.
Arrhytidia Berk.
Ceracea Cragin.
Guepinia Fries.
Dacryomitra Pul.
Collyria Fries.

GENERA MINUS CERTA.

Hormonyces Bon.
Ditiola Fries.
Apyrenium Fries.

BREFIELD'S CLASSIFICATION OF FUNGI.

A system of classification of fungi which is receiving attention from
mycologists is that recently presented by the distinguished German
author Dr. Oscar Brefield. Dr. Brefield's exhaustive investigations into
the life-history