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

Australian Systematic Botany

Volume 34 Number 3 2021


This study of native Australian grasses shows the impact on results from analyses of multiple datasets. The study builds on previous work using an expanded set of DNA sequences and a more comprehensive study of the morphology of seed heads to show new species, new genera and a new classification for a group of grasses defined by sharing a rare and distinct breeding system.


This paper uses morphology to revise the taxonomy of 10 species of forget-me-nots (Myosotis) endemic to New Zealand. New subspecies are described for two of the species. Myosotis is of high conservation priority because most of its species and subspecies are considered Threatened or At Risk. This study is part of a larger taxonomic research project of all southern hemisphere Myosotis, using morphology, genetics, pollen and other data.


The little-known red-algal family Acrotylaceae, comprising six genera and seven species mostly confined to the southern half of Australia, was monographed in the 1970s based solely on morphological characters that differed from one genus to another in almost every respect save for some obscure features of embryo development. We review that anatomical knowledge and report molecular analyses of six species in five of the genera that resolve the group into two distinct families, add one new species, and transfer two species from a different genus and family to one of the members.

Committee on Publication Ethics

Best Student Paper

The Best Student Paper published in 2023 has been awarded to Harvey K. Orel.

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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