Scaevola acacioides

Scaevola acacioides, is an erect, spreading shrub in the family Goodeniaceae.[3]

Scaevola acacioides
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Goodeniaceae
Genus: Scaevola
Species:
S. acacioides
Binomial name
Scaevola acacioides
Occurrence data from Australasian Virtual Herbarium

Description

Scaevola acacioides is an erect, spreading shrub which grows to 0.6–2 m high.[3] The stems have no ribs.[3] The thick greyish-green leaves are sessile (without stalks), narrowly oblong to elliptic, and entire, with the leaf blade of length 25–50 mm, and width 2–5 mm.[4] Flowers are dichasial or monochasial, or solitary in the axils.[4] The corolla is white, 15–22 mm long, and not spurred. It can be either hairy or smooth on the outside, but has sparse, simple, stellate hairs on the inside. The anthers are free.[3] The indusium (cup enclosing the stigma) is hairy.[3] The ovary is inferior, and not gibbose (swollen at the base). The hairy style is 11–12 mm long.[3] The fruit is black, ovoid, smooth and up to 5 mm long,[4] and there are one or two ovules.[3] It flowers in March, April, May and August.[3]

The branched inflorescences and long narrow leaves differentiate this species from others in the section, Scaevola.[4]

It has no synonyms.[5]

Distribution & habitat

Scaevola acacioides is endemic to Western Australia and found in the IBRA bioregions of Carnarvon, Gascoyne, and Pilbara, on skeletal red, gravelly, sandy soils.[3]

Taxonomy

Scaevola acacioides was first described in 1990 by Roger Carolin in an article in the journal, Telopea.[1][2]

A holotype of the species, PERTH 01149342, was collected by J.V. Blockley on 30 May 1966 at Bee Gorge, near Wittenoom.[6]

Etymology

The genus name, Scaevola, is Latin, a diminutive of scaeva, the left-handed, referring to the left-handed Gaius Mucius Scaevola, the flower being so like a hand.[7] The specific epithet, acacioides, derives from Acacia, and the Greek, -oides, meaning "resemblance" or "like", giving Acacia-like.[8]

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References
  1. "Scaevola acacioides". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. Carolin, R.C. (1990), Nomenclatural notes, new taxa and the systematic arrangement in the genus Scaevola (Goodeniaceae) including synonyms. Telopea 3(4): 491.
  3. "Scaevola acacioides". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. Carolin, R.C. (2017) Flora of Australia: Scaevola acacioides Carolin. Retrieved 11 May 2019.
  5. Govaerts, R. et.al. (2019) Plants of the world online: Scaevola acacioides. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 11 May 2019.
  6. Jstor Global Plants: Holotype of Scaevola acacioides Carolin (family GOODENIACEAE) Retrieved 12 May 2019.
  7. Lewis, C.T. & Short, C. Latin dictionary:Scaevola Retrieved 23 June 2018}}
  8. PlantIllustrations.org: Scaevola acacioides Carolin Retrieved 12 May 2019.
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