LIST OF THE GENERA OF HYMENOMYCETES.

The following list of the genera of Hymenomycetes, summarized from Kellerman's Synopsis of Saccardo's Sylloge Fungorum, will be found useful for reference:

  1. Agaricaceæ.
    1. Leucosporeæ. (Spores white or slightly tinted yellowish.)
      1. GENERA.
        1. Amanita Pers.
        2. Amanitopsis Roze.
        3. Lepiota Fries.
        4. Schulzeria Bres.
        5. Armillaria Fries.
        6. Tricholoma Fries.
        7. Clitocybe Fries.
        8. Collybia Fries.
        9. Mycena Fries.
        10. Hiatula Fries.
        11. Omphalia Fries.
        12. Pleurotus Fries.
        13. Hygrophorus Fries.
        14. Lactarius Fries.
        15. Russula Pers.
        16. Cantharellus Adans.
        17. Arrhenia Fries.
        18. Nyctalis Fries.
        19. Stylobates Fries.
        20. Marasmius Fries.
        21. Heliomyces Lev.
        22. Lentinus Fries.
        23. Panus Fries.
        24. Xerotus Fries.
        25. Trogia Fries.
        26. Lenzites Fries.
        27. Tilotus Kalch.
        28. Hymenogramme B. & Mont.
        29. Oudemansiella Speg.
        30. Pterophyllus Lev.
        31. Rachophyllus Berk.
        32. Schizophyllum Fries.
    2. Rhodosporæ (spores pink or salmon color), corresponding to the Hyporhodii of Fries.
      1. GENERA.
        1. Volvaria Fr.
        2. Annularia Schulz.
        3. Pluteus Fries.
        4. Entoloma Fries.
        5. Clitopilus Fries.
        6. Leptonia Fries.
        7. Nolanea Fries.
        8. Eccilia Fries.
        9. Claudopus Worth. Smith.
    3. Ochrosporæ (spores tawny ochraceous, or light rusty tint of brown), corresponding to the Dermini of Fries.
      1. GENERA.
        1. Pholiota Fries.
        2. Locillina Gill.
        3. Inocybe Fries.
        4. Hebeloma Fries.
        5. Flammula Fries.
        6. Naucoria Fries.
        7. Pluteolus Fries.
        8. Galera Fries.
        9. Tubaria Worth. Smith.
        10. Crepidotus Fries.
        11. Cortinarius Fries.
        12. Paxillus Fries.
    4. Melanosporæ (spores black, dark-brown or purplish-brown), combining the attributes of both the Coprinarii and the Pratelli of Fries.
      1. GENERA.
        1. Chitonia Fries.
        2. Agaricus Linn.
        3. Pilosace Fries.
        4. Stropharia Fries.
        5. Hypholoma Fries.
        6. Psilocybe Fries.
        7. Deconica Worth. Smith.
        8. Psathyra Fries.
        9. Bolbitius Fries.
        10. Coprinus Pers.
        11. Panæolus Fries.
        12. Annellaria Karsh.
        13. Psathyrella Fries.
        14. Gomphidius Fries.
        15. Anthracophyllum Ces.
        16. Montagnites Fries.
  2. Polyporaceæ (Polyporei).
    1. GENERA.
      1. Boletus Dill.
      2. Strobilomyces Berkeley.
      3. Boletinus Kalchbr.
      4. Gyrodon Opatowski.
      5. Fistulina Bull.
      6. Polyporus Mich.
      7. Fomes Fries.
      8. Polystictus Fries.
      9. Poria Pers.
      10. Trametes Fries.
      11. Hexagonia Fries.
      12. Dædalea Pers.
      13. Myriadoporus Peck.
      14. Ceriomyces Corda.
      15. Bresadolia Speg.
      16. Cyclomyces Kunz.
      17. Favolus Fries.
      18. Glœoporus Mont.
      19. Laschia Fries.
      20. Merulius Hall.
      21. Theleporus Fries.
      22. Porothelium Fries.
      23. Solenia Hoffm.
  3. Hydnaceæ (Hydnei).
    1. GENERA.
      1. Hydnum Linn.
      2. Caldesiella Lace.
      3. Hericium Pers.
      4. Tremellodon Pers.
      5. Sistotrema Pers.
      6. Irpex Fries.
      7. Radulum Fries.
      8. Plebia Fries.
      9. Lopharia K. & M. Ow.
      10. Grandinia Fries.
      11. Grammothele B. & C.
      12. Odontia Pers.
      13. Kneiffia Fries.
      14. Mucronella Fries.
  4. Thelephoraceæ (Thelephorei).
    1. GENERA.
      1. Craterellus Fries.
      2. Hypolyssus Pers.
      3. Thelephora Ehrh.
      4. Cladoderris Pers.
      5. Beccariella Ces.
      6. Stereum Pers.
      7. Hymenochæte Lev.
      8. Skepperia Berk.
      9. Corticium Fries.
      10. Peniophora Cooke.
      11. Coniophora D. C.
      12. Michenera B. & C.
      13. Matula Mass.
      14. Hypochnus Fries.
      15. Exobasidium Weron.
      16. Helicobasidium Pat.
      17. Cyphella Fries.
      18. Friesula Speg.
      19. Cora Fries.
      20. Rhipidonema Matt.
  5. Clavariaceæ (Clavariei).
    1. GENERA.
      1. Sparassis Fries.
      2. Acartis Fries.
      3. Clavaria Vaill.
      4. Calocera Fries.
      5. Lachnocladium Lev.
      6. Pterula Fries.
      7. Ptifula Pers.
      8. Pistallaria Fries.
      9. Physalacria Peck.
  6. Tremellaceæ (Tremellini)
    1. GENERA.
      1. Auricularia Bull.
      2. Hirneola Fries.
      3. Platyglœa Schroet.
      4. Exidia Fries.
      5. Ulocolla Bref.
      6. Craterocolla Bref.
      7. Femsjonia Fries.
      8. Tremella Dill.
      9. Næmatelia Fries.
      10. Gyrocephalus Pers.
      11. Delortia Pat. & Gail.
      12. Arrhytidia Berk.
      13. Ceracea Cragin.
      14. Guepinia Fries.
      15. Dacryomitra Pul.
      16. Collyria Fries.
    2. GENERA MINUS CERTA.
      1. Hormonyces Bon.
      2. Ditiola Fries.
      3. 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 of fungi in general have been such as to entitle his views to consideration, although the system presents some inconsistencies which may prevent its adoption in its entirety.

According to the Brefield system, as summarized by his colleague Dr. Von Tavel, Fungi are divided into two primary classes: (1) the Phycomycetes, or lower fungi nearest like the algæ, consisting of a one-celled thallus with sexual as well as non-sexual modes of reproduction, and (2) the Mesomycetes and the Mycomycetes, having a divided or many celled thallus, propagated by non-sexually formed spores. The Phycomycetes are further divided into two large sections, based on their methods of reproduction, termed, respectively, Zygomycetes and Oomycetes. These include the old typical Mucors, the Peronosporeæ or "rotting moulds," once classed with the Hyphomycetes, the Saprolegniaceæ, "Fish Moulds," of aquatic habit, the Entomophthoraceæ, "Insect Moulds," together with some minor groups. The Mesomycetes connect the Phycomycetes with the Mycomycetes. The class Mycomycetes is primarily divided into two sections, viz., Ascomycetes and Basidiomycetes, with the Ustilagineæ, "Smut Fungi," in Mesomycetes, forming a transitional group between Phycomycetes and the Basidiomycetal group of the higher fungi.

The Ascomycetes are primarily subdivided into Exoasci and Carpoasci, groups based on the character of the asci. In the first, Exoasci, the asci are naked and borne directly on the mycelium; in the second, Carpoasci, they are enclosed in a wrapper composed of fertile hyphæ and sterile threads, having also accessory fruit forms. The first includes Endomycetes and Taphrineæ. In the second are included the groups Gymnoasci, Perisporaceæ, Pyrenomycetes, Hysteriaceæ, Discomycetes, and Helvellaceæ.

The Basidiomycetes characterized by the possession of basidia are arranged in two groups, based on the character of the basidia: (1) the Protobasidiomycetes, in which the basidia are septate, divided, and (2) the Autobasidiomycetes, in which the basidia are not divided, and bear a definite number of spores.