Australasian truffle-like fungi. X. Gymnopaxillus (Basidiomycota, Austropaxillaceae)

2001 ◽  
Vol 14 (2) ◽  
pp. 273 ◽  
Author(s):  
Andrew W. Claridge ◽  
James M. Trappe ◽  
Michael A. Castellano

The genus Gymnopaxillus, previously known only from Chile and Argentina, has been found in south-eastern Australia. Two new species, G. nudus and G. vestitus, are described, and the generic description is emended to include hypogeous species with bilaterally symmetric spores and a peridium. Gymnopaxillus spp. are characterised by a yellow to golden-brown, bright cinnamon or ferruginous, loculate, columella-bearing gleba containing boletoid spores that appear vivid golden-yellow in KOH. Molecular phylogeny indicates that the genus is related to the Southern Hemisphere ectomycorrhizal genus Austropaxillus rather than to Paxillus and is placed in the Austropaxillaceae.

Zootaxa ◽  
2009 ◽  
Vol 1980 (1) ◽  
pp. 1-15 ◽  
Author(s):  
JEAN JUST

The varying concepts of Janirellidae Menzies, 1956 are outlined, including its rejection by several authors. The view of Wilson and Wägele of Janirellidae being a valid family comprising Janirella Bonnier, 1896 and presumably Dactylostylis Richardson, 1911 (= Spinianirella Menzies, 1962) is accepted. Diagnoses of the Janirellidae subsequent to Menzies’ original one were based on the inclusion of a diverse range of genera now recognised as not belonging in that family. A new diagnosis of Janirellidae is presented based on the inclusion of Janirella, Dactylostylis, and a new genus Triaina with two new species, T. isodonte and T. makridonte, from south-eastern Australia. The latter species represents the shallowest record (80 m) of the otherwise predominantly deep-water family. All species in the family are listed in an appendix, with area of type locality and depth range.


2008 ◽  
Vol 21 (3) ◽  
pp. 162 ◽  
Author(s):  
Robert S. Hill ◽  
Tom Lewis ◽  
Raymond J. Carpenter ◽  
Sung Soo Whang

Organically preserved Cainozoic leaf fossils previously referred to Agathis are re-examined, and in all cases their affinity with that genus is confirmed. Previously undescribed organically preserved leaf fossils from several Cainozoic sites in south-eastern Australia are compared with Agathis and Wollemia and two new species of Agathis are described. Intraspecific variation in leaf cuticle morphology is examined in extant A. macrophylla in particular, and is found to be much higher than previously recorded. This makes assignment of fossil Agathis leaves to species difficult, especially when only leaf fragments are available. The new fossils extend the record of organically preserved Agathis macro-remains back to the Late Paleocene, but do not significantly extend the known spatial distribution.


Zootaxa ◽  
2019 ◽  
Vol 4550 (1) ◽  
pp. 115
Author(s):  
HARRY SMIT

Two new species of the water mite genus Aspidiobates are described from Queensland, Australia, i.e. A. imperfectus n. sp. and A. neogeometricus n. sp. Many new records are given for eastern and south-eastern Australia. Finally, a key is provided for all Australian Aspidiobates species. 


2001 ◽  
Vol 14 (2) ◽  
pp. 193 ◽  
Author(s):  
Robert S. Hill ◽  
David C. Christophel

Two new macrofossil species of Dacrydium (Podocarpaceae), D. fimbriatus (with dimorphic foliage) and D. mucronatus, are described from Middle Eocene sediments at Nelly Creek just south of Lake Eyre South. These species extend the number of Dacrydium macrofossil species from four to six, the macrofossil range from south-eastern to central Australia and the earliest macrofossil record of the genus from the Early Oligocene to Middle Eocene. On the basis of the low numbers and poor development of epiphyllous germlings, these species were probably growing in a region where water availability was reduced compared with Paleogene sites in south-eastern Australia, but the morphology of the foliage does not reflect that.


Zootaxa ◽  
2005 ◽  
Vol 1085 (1) ◽  
pp. 21 ◽  
Author(s):  
JEAN JUST

A new genus and species of janiroidean Asellota, Xenosella coxospinosa, is described from the mid-bathyal slope off the coast of south-eastern Australia. Following a comparison of the new species to several families of broadly similar body shape, with emphasis on monotypic Pleurocopidae, a new family, Xenosellidae, is proposed for the new species. In the course of comparing relevant taxa, the current placements of Prethura Kensley in the Santiidae and Salvatiella Müller in the Munnidae are rejected. The two genera are considered to be incertae sedis within the Asellota superfamily Janiroidea pending further studies.


1994 ◽  
Vol 7 (4) ◽  
pp. 353 ◽  
Author(s):  
NL Bougher ◽  
BA Fuhrer ◽  
E Horak

Seven species of the putatively obligately ectomycorrhizal fungal genus Rozites are described from Australian Nothofagus and myrtaceaeous forests. Rozites metallica, R. armeniacovelata, R. foetens, and R. occulta are new species associated with Nothofagus in south eastern Australia. Rozites fusipes, previously known only from New Zealand, is reported from Tasmanian Nothofagus forests. Rozites roseolilacina and R. symea are new species associated with Eucalyptus in south eastern and south western Australia respectively. The significance of these Rozites species to mycorrhizal and biogeographical theories, such as the origin of ectomycorrhizal fungi associated with myrtaceous plants in Australia are discussed. The diversity of Rozites species in Australia, which equals or exceeds that of other southern regions, furthers the notion that many species of the genus co-evolved with Nothofagus in the Southern Hemisphere. Rozites symea in Western Australia occurs well outside the current geographic range of Nothofagus. It is considered to be a relict species that has survived the shift in dominant ectomycorrhizal forest tree type from Nothofagus to Myrtaceae (local extinction of Nothofagus 4–5 million years ago), and is most likely now confined to the high rainfall zone in the south west. Data on Rozites in Australia support the concept that at least some of the present set of ectomycorrhizal fungi associated with Myrtaceae in Australia are those which successfully completed a host change from Nothofagus, and adapted to changing climate, vegetation and soil conditions during and since the Tertiary. We suggest that the ancient stock of Rozites arose somewhere within the geographical range of a Cretaceous fagalean complex of plant taxa. By the end of the Cretaceous, Rozites and the fagalean complex may have spanned the Asian–Australian region including perhaps many Southern Hemisphere regions. A northern portion of the ancestral Rozites stock gave rise to extant Northern Hemisphere Rozites species and a southern portion speciated as Nothofagus itself speciated.


2009 ◽  
Vol 41 (2) ◽  
pp. 151-178 ◽  
Author(s):  
Gintaras KANTVILAS

AbstractThe genusMycoblastusin cool temperate latitudes of the Southern Hemisphere is reviewed. Eight species are treated in detail:M. bryophilusImshaug ex Kantvilas sp. nov., from Campbell Island and Tasmania;M. campbellianus(Nyl.) Zahlbr.,M. coniophorus(Elix & A.W. Archer) Kantvilas & Elix comb. nov. andM. dissimulans(Nyl.) Zahlbr., all widespread across the austral region;M. disporus(C. Knight) Kantvilas comb. nov., from New Zealand and Tasmania;M. kalioruberKantvilas sp. nov, from Tasmania;M. sanguinarioidesKantvilas sp. nov., from Tasmania and south-eastern Australia; andM. leprarioidesKantvilas & Elix sp. nov., from south-eastern Australia (Victoria). Notes are provided on many other species ofMycoblastus, including those recognised for the Northern Hemisphere, and those originally described from austral regions but now excluded from the genus. Major characters of the genus are discussed, including thallus morphology and chemistry, apothecial pigments and ascus structure. It is suggested that the genus is heterogeneous and that some of its closest affinities may lie with the familyMegalariaceaeand the genusJapewia.


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