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Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants
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Australian Systematic Botany

Australian Systematic Botany

Volume 35 Number 6 2022

SB22004Licmophora species (Bacillariophyta: Licmophorales) from Heron Island (Great Barrier Reef) and Melbourne, Australia, in comparison with similar species from Guam: evidence for endemicity in a marine diatom genus

Christopher S. Lobban 0000-0003-1596-0656 and Emmanuel S. Santos
pp. 437-468

Whereas one expects to see different land plants and animals in different places, the ‘everything-is-everywhere’ hypothesis of microbial biogeography, e.g. unicellular algae, tends to become a self-fulfilling prophesy. We found a high proportion of new species in our samples. This is evidence for regional endemicity in marine diatoms, i.e. that the Licmophora flora(s) in eastern Australia and Guam are different from the European floras on which identification is often based.

SB22004 Abstract  | PDF (23 MB) - $60.00   | SB22004Supplementary Material (2 MB)

SB21023Marine planktonic dinophysoid dinoflagellates (order Dinophysales): 60 years of species-level distributions in Australian waters

Gustaaf M. Hallegraeff 0000-0001-8464-7343, Ruth S. Eriksen 0000-0002-5184-2465, Claire H. Davies and Julian Uribe-Palomino
pp. 469-500

A comprehensive review of 60 years of distribution data and taxonomic samples of marine dinophysoid dinoflagellates in Australian waters resolved 64 Ornithocercus taxa, which are illustrated by light and electron microscopy. Selected bloom-forming Dinophysis species are the cause of diarrhetic shellfish poisoning, while tropical genera such as Ornithocercus and Histioneis deserve careful attention in monitoring for southward range expansions. We rediscovered rare tropical species such as Histiophysis rugosa (Kof. & Mich.) Kof. & Skogsb., previously described on the basis of a single specimen only.

SB21023 Abstract  |  SB21023 Full Text  | SB21023PDF (12.3 MB)   Open Access Article

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Best Student Paper

The Best Student Paper published in 2022 has been awarded to Catherine Clowes.

Plant Systematics and Biogeography in the Australasian Tropics

Special Issues vol. 31 nos 5 & 6, vol. 32 nos 2 & 3 and vol. 32 no. 4 form special editions on Plant Systematics and Biogeography in the Australasian Tropics containing Part 1, Part 2 & Part 3, respectively.

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