Isopogon pruinosus

Isopogon pruinosus is a shrub in the family Proteaceae that is endemic to southwestern Western Australia.[3] There are two accepted subspecies:

Isopogon pruinosus
Isopogon pruinosus subsp. glabellus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Isopogon
Species:
I. pruinosus
Binomial name
Isopogon pruinosus
Hislop & Rye[1][2]
Occurrence data from Australasian Virtual Herbarium

Isopogon pruinosus subsp. glabellus — a shrub with smooth branchlets. The leaves are alternate, 30–45 mm long, 6–10 mm wide, and smooth with a flat blade, which is widest above the middle or much the same width throughout. The leaf edges are smooth. The inflorescences are red or pink, with perianths 11–15 mm long, and hairy, with the hairs appressed (lying pressed to the perianth). The pistil is 10–15 mm long. The pollen presenter is hairy and not spindle shaped and from 3–5 mm long. The cone has deciduous scales. The plant flowers in May, June or September.[4]

Isopogon pruinosus subsp. pruinosus — a shrub with smooth branchlets. The leaves are alternate, and from 25–85 mm long and 4–17 mm wide. They are smooth with a flat blade, which is widest above the middle, and has smooth edges. The inflorescences are red or pink, with perianths 15–21 mm long, simple-hairy, with the hairs being appressed. The pistil is 15–20 mm long, and the pollen presenter is hairy, not spindle-shaped, and 5–6.2 mm long. The cone has deciduous scales. The plant flowers in May, July, August or September.[5]

Taxonomy

The species and subspecies were first described in 2010 by the botanists Michael Hislop and Barbara Rye in Nuytsia.[2][1] There are no synonyms.[6]

References

  1. Hislop, M. & Rye, B.L. (2010), Two new, glaucous-leaved species of Isopogon (Proteaceae: Proteoideae: Leucadendreae) from southwestern Australia. Nuytsia 20: 176-178
  2. "Isopogon pruinosus". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  3. "Isopogon pruinosus". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. "Isopogon pruinosus subsp. glabellus". FloraBase. Western Australian Government Department of Parks and Wildlife.
  5. "Isopogon pruinosus subsp. pruinosus". FloraBase. Western Australian Government Department of Parks and Wildlife.
  6. Govaerts, R. et. al. (2018) Plants of the world online: Isopogon pruinosus. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 13 November 2018.
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