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Austropeltum glareosum gen. et sp. nov., a New Lichen from Mountain Plateaux in Tasmania and New Zealand *
Author(s) -
Henssen A.,
Döring H.,
Kantvilas G.
Publication year - 1992
Publication title -
botanica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0932-8629
DOI - 10.1111/j.1438-8677.1992.tb00328.x
Subject(s) - ascocarp , lichen , thallus , biology , genus , botany , habit , pycnidium , conidium , taxonomy (biology) , psychology , psychotherapist
Austropeltum gen. nov. is described as a monotypic genus of the family Stereocaulaceae. It differs from other genera of the family by a sqamulose habit. The single species, Austropeltum glareosum sp. nov. is characterized by an heteromerous thallus with a thick, heavily gelatinized upper cortex, and stalked, lecideine, glomerate apothecia. The apothecial stalk is a pseudopodetium, which is delimited from the subhymenium by a pigmented boundary tissue. Asci are eight‐spored and possess an amyloid tube‐structure; the simple ascospores are fusiform and colourless. Filiform conidia are produced laterally and terminally in marginal pycnidia. A. glareosum grows over gritty soil on exposed mountain summits and plateaux in New Zealand and Tasmania.