Myoporum niueanum, alternatively known as the Niue myoporum, is a plant in the figwort family, Scrophulariaceae of unresolved status that was first described by botanist Harold St. John in 1976 based upon plant material originally collected a century earlier.[1] It is believed to be endemic to the Polynesian island nation of Niue. The species is recognized by several authorities as a full species,[2][3][4] however there have been no modern observations and it is unclear if the species may actually have come from a different locality or gone extinct since the original collection. The respected botanist Arthur Whistler formally challenged the terms of the original species description and suggested the type specimen may indeed have been undescribed but actually have come from a different region.[5]

Myoporum niueanum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Myoporum
Species:
M. niueanum
Binomial name
Myoporum niueanum

Description

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St. John describes the species as a glabrous woody plant with leafy branchlets 1–3 mm in diameter, possessing a longitudinal ridge. The leaves are alternate with petioles 6–8 mm long. The leaf blades are described as 5.5–6.7 cm long, 1.3–1.7 cm wide, narrowly elliptic, but cuneate and decurrent at the base. The flowers are broadly ovate and acute occurring 1–2 to an axil with pedicels 7–9 mm long, calyx 2.5 mm long, and 5 lobes 0.8 mm long.[1]

References

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  1. ^ a b John, H.S. A plant collection from Niue Island by Jensen in 1876 pacific plant studies 29. Bot. Mag. Tokyo 89, 235–240 (1976). https://doi.org/10.1007/BF02488345
  2. ^ Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6. Scientific Data 8: 215.
  3. ^ https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:585301-1
  4. ^ https://www.worldplants.de/world-plants-complete-list/complete-plant-list/?name=Myoporum-insulare#plantUid-320723
  5. ^ W. Arthur Whistler (1984) Notes on the flora of Niue, New Zealand Journal of Botany, 22:4, 565–567, DOI: 10.1080/0028825X.1984.10425291