Austroboletus lacunosus (Kuntze) T.W.May & A.E.Wood

  • Family

    Boletaceae (Basidiomycota)

  • Scientific Name

    Austroboletus lacunosus (Kuntze) T.W.May & A.E.Wood

  • Primary Citation

    Mycotaxon 54: 149. 1995

  • Basionym

    Boletus lacunosus Cooke & Massee

  • Description

    Protologue: Pileo e pulvinato expanso, molli, subviscoso, pallide ochraceo, fusco, vel sub-brunneo (2-4 unc. diam.) stipite subaequali, vel sursum attenuato, profunde lacunoso, pallido (3-4 unc. long, 1-2 unc. crass.) tubulis adnatis, poris majusculis, angulatis, albidis dein incarnatis. Sporis amygdalaeformibus, asperulis, 15 x 10 µ. On sandy ground. Brisbane. (Bailey, 649, 664, 670.) Remarkable for the lacunose stem, but especially for the rough almond-shaped spores. Allied to Boletus megalosporus, Berk.

    Nomenclature: Cooke and Massee first described this taxon from Australia. Their epithet was a later homonym for B. lacunosus Otth published 32 years earlier. Kuntze created a nom. nov. in Suillus using Cooke & Massee's epithet. This is the BASIONYM. Saccardo & Sydow created a superfluous nom. nov. a year later with Boletus cookei. The Saccardo & Sydow epithet was transferred to Porphyrellus by Singer and to Austroboletus by Wolfe. May & Wood were the first to correctly apply the proper epithet in Austroboletus. McNabb's P. novaezelandiae from New Zealand is NOT a later synonym based on preliminary molecular phylogeny inferred from nrLSU and tef1α.

    Typification: Singer (1955) selected Bailey 649 from among the three syntypes as Lectotype. Wolfe (1979) discussed the condition of the syntypes and concluded that 649 was unsuitable as type (tissues paratially gelatinized) and 670 is a mixed collection making it unsuitable. Wolfe subdivided 664 into 3 additional portions, selecting 664A as Lectotypical. At this time, A. cookei became the name in current use and was distinguished from A. novazelandiae as conceived by Wolfe. Wolfe's later lectotype designation is superfluous being contrary to ICBN Art. 9.17.

    Registration number: MB 412550

    Ectomycorrhiza: Presumablly with Myrtaceae, Allocasuarinaceae

    Distribution: Reliably catalogued form eastern Australia

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