Myosotis pansa

Myosotis pansa is a species of flowering plant in the family Boraginaceae, endemic to the North Island of New Zealand. Lucy Moore described the variety M. petiolata var. pansa in 1961, and it was raised to species level as M. pansa by Heidi Meudt, Jessica Prebble, Rebecca Stanley and Michael Thorsen in 2013. Plants of this species of forget-me-not are perennial rosettes with ebracteate (or partially bracteate) inflorescences and white corollas and exserted anthers.

Phylogeny[edit]

Myosotis pansa was shown to be a part of the monophyletic southern hemisphere lineage of Myosotis in phylogenetic analyses of standard DNA sequencing markers (nuclear ribosomal DNA and chloroplast DNA regions).^[5] Within the southern hemisphere lineage, species relationships were not well resolved.^[5]^[6]

Multiple individuals of both subspecies of Myosotis pansa were included in two studies that phylogenetically analysed amplified fragment length polymorphisms (AFLPs).^[7]^[8] In these analyses, Myosotis pansa was differentiated from M. petiolata and M. pottsiana, and the two subspecies were also genetically differentiated.^[7]^[8]

Distribution and habitat[edit]

Myosotis pansa is endemic to the North Island of New Zealand from the Waitakere Ranges in Auckland to Waikato and northern Taranaki, from sea level to 200 m ASL. M. pansa is found on coastal cliffs, coastal scrub nearby grassy slopes.^[3]

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Conservation status[edit]

The two subspecies of M. pansa are listed as Threatened (subsp. pansa is Nationally Endangered and subsp. praeceps is Nationally Vulnerable) in the most recent assessment (2017-2018) of the New Zealand Threatened Classification for plants.^[11]

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Myosotis pansa occurrence data from Australasian Virtual Herbarium

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