Amanita preissii - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella
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name Amanita preissii
name status nomen acceptum
author (Fr.) Sacc.
english name "Preiss' Limbed-Lepidella"
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  • Amanita preisii, Western Australia, Australia.Amanita preisii, Western Australia, Australia.

    1. Amanita preisii, Western Australia, Australia.

    • intro

    This description is based on that of Bas (1969).

    cap

    The cap of Amanita preisii is 50 - 80 mm wide, convex to plano-convex, finally slightly depressed at the center, white to cream with a pale ochraceous tinge at the center, viscid when moist, with a nonsulcate, appendiculate margin. The cap is scattered with very thin, hardly discernible patches or flakes belonging to volva.

    gills

    The gills are moderately crowded, adnexed to narrowly adnate, moderately broad, and white to cream. The short gills are truncate to obliquely truncate.

    stem

    The stem is 80 - 120 × 8 - 20 mm, subcylindrical, farinaceous, white, sometimes with rusty spots, with the volva usually leaving a fragile, membranous limb on the top of the bulb.

    spores

    The spores measure (9.5-) 10 - 12 (-12.5) × 5.5 - 6 µm and are amyloid and elongate to cylindrical. Clamps are absent at bases of basidia.

    discussion

    This species was originally described from southwestern Australia. Dr. Bas (1969) reviewed material of J. Gentilli that appeared to conform well with what was known of Fries' species.

    The collections examined by Bas were collected "under shrubs and Eucalyptus in West Australia." Gentilli reported the species to be common in that state.

    Bas based his stirps Preissii on A. preissii and included within that stirps A. sublutea (Cleland) E.-J. Gilbert and A. mutabilis Beardslee. For a brief statement concerning the related stirpes of Amanita subsection Limbatulae, see A. limbatula Bas.—R. E. Tulloss

    brief editors RET

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