Death cap mushrooms from southern Australia: additions to Amanita (Amanitaceae, Agaricales) section Phalloideae Clade IX
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The following three similar Amanita spp. are described: Amanita jarilmari E.M.Davison, A. gardneri E.M. Davison from the south-west of Western Australia and A. millsii E.M.Davison & G.M.Gates (=A. sp. 10 ZLY-2014 HKAS 77322 in KUN) from Tasmania. All have a white- or pale-coloured pileus and white universal veil, but differ in the shape of the bulb, spore shape, and structure of the universal veil. All are from subgenus Lepidella section Phalloideae. Phylogenetic analysis showed that these species cannot be separated on the basis of data derived from nuclear ribosomal internal transcribed-spacer sequences. They can be separated in a multi-locus phylogeny of the 28S nuclear ribosomal large-subunit rRNA region, RNA polymerase-II region, b-tubulin region and translation elongation-factor 1-a region. Amanita djarilmari, A. gardneri, A. millsii and two other previously described species in section Phalloideae from southern Australia (A. eucalypti and A. marmorata) cluster in Clade IX. These, together with other species in this clade, segregate into two lineages, namely, Clade IX A, with a white or pale pileus, and Clade IX B, with a brown pileus. Solvent extraction, followed by liquid-chromatography tandem-mass spectrometry of A. djarilmari, A. eucalypti, A. gardneri and A. marmorata basidiomes did not detect the highly toxic amatoxins a-amanitin and b-amanitin, but did detect the phallotoxins phallacidin and phalloidin.
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Davison, Elaine ; Giustiniano, Danielle; Barrett, Matt; Syme, Katrina (2023)Four species of Amanita Pers. are documented from Western Australia. Amanita brunneola E.M.Davison & Giustiniano is described from the Perth region. It is distinguished by its pale brown pileus, white universal veil, ...
Clarification of the type locality of Amanita peltigera (Agraicales, Amanitaceae), phylogenetic placement within subgenus Amanitina, and an expanded description.Davison, Elaine ; Giustiniano, Danielle; Haska, Julia (2020)© 2020 Board of the Botanic Gardens and State Herbarium (Adelaide, South Australia) In the protologue of Amanita peltigera D.A.Reid the type locality is stated as Stirling West, Western Australia, but no such place exists. ...
Amanita hiltonii (Amanitaceae), a common but frequently misidentified mushroom in southwestern Australia, and a reconsideration of A. albifimbriata and A. brunneibulbosa.Davison, Elaine ; Giustiniano, Danielle (2020)Amanita hiltonii D.A.Reid is a common white mushroom in forested areas of southwestern Western Australia. It has been frequently misidentified as A. ananiceps (Berk.) Sacc. or A. preissii (Fr.) Sacc. Its distinguishing ...