Introductory Features for Basidiomycota

I. Basidiomycota; features


  • A. septate hyphae; simple septum (see variations in Figure 22-4) in doliopore septum (see handout Figure 5.13; variation in Tremellales; see Figure 22-1); clamp connections (Figure 16-2; handout Figure 5.13)


    B. basidium


  • 1. probasidium = where karyogamy takes place


    2. metabasidium= where meiosis takes place


    3. sterigma (-ata)= points on which basidiospores are attached; may be either on 1 or 2 or on a epibasidium


    4. epibasidium; hypobasidium (see Figure 16-7 B)


  • C. primary, secondary, and tertiary mycelial.


    D. basidiocarp variable- absent to present

  • Dacrymycetales (top left); Tremellales (top right)
    Auriculariales (bottom left)
    Agaricales (bottom right)
    Agaricales basidium with two sterigam in view
    and heterotropic spore attachment.


    Classification:

    (smuts, rusts); Tremellales and Auriculariales (jelly fungi in part [except the Dacrymycetales]); Dacrymycetales: jelly fungi; Agaricales : mushrooms, boletes; Aphyllophorales: polypores; tooth fungi; coral fungi; chantrelles;Gasteromycetes: puffballs and their relatives.


    genera and species

    classification system with features