Eucalyptus surgens
| Eucalyptus surgens | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Eucalyptus |
| Species: | E. surgens
|
| Binomial name | |
| Eucalyptus surgens | |
Eucalyptus surgens is a species of mallee that is endemic to a small area on the south coast of Western Australia. It has rough bark near the base of the stems, glossy green lance-shaped leaves, flower buds in groups of seven, creamy yellow flowers and cup-shaped to cylindrical fruit.
Description
[edit]Eucalyptus surgens is a mallee that typically grows to a height of 2.5 m (8 ft 2 in), forms a lignotuber and has smooth bark apart from some rough bark near the base of the trunk. Young plants and coppice regrowth have dull bluish green, broadly lance-shaped to egg-shaped leaves that are 55–60 mm (2.2–2.4 in) long, 25–35 mm (0.98–1.38 in) wide and petiolate. Adult leaves are the same shade of glossy light green on both sides, lance-shaped, up to 100 mm (3.9 in) long and 20 mm (0.79 in) wide. The flower buds are arranged in leaf axils on a thick, unbranched peduncle 3–5 mm (0.12–0.20 in) long, the individual buds on short pedicels. Mature buds have a bell-shaped floral cup and a cap-shaped operculum about 15 mm (0.59 in) long, 8 mm (0.31 in) wide and shorter than the floral cup. The flowers are creamy yellow and the fruit is a woody, cup-shaped to cylindrical capsule about 12 mm (0.47 in) long and 9 mm (0.35 in) wide with the valves below rim level.[2][3]
Taxonomy and naming
[edit]Eucalyptus surgens was first formally described in 1993 by Ian Brooker and Stephen Hopper in the journal Nuytsia from specimens collected by Hopper near Toolinna Cove in 1989.[2][4] The specific epithet (surgens) is a Latin word meaning "rising", referring to a prominent vertical scar on the rim of the fruit.[2]
Distribution and habitat
[edit]This mallee is only known from the type location near the coast on the western edge of the Nullarbor Plain.[2]
See also
[edit]References
[edit]- ^ "Eucalyptus surgens". Australian Plant Census. Retrieved 4 January 2020.
- ^ a b c d Brooker, M. Ian H.; Hopper, Stephen (1993). "New series, subseries, species and subspecies of Eucalyptus (Myrtaceae) from Western Australia and from South Australia". Nuytsia. 9 (1): 53–54. Retrieved 4 January 2020.
- ^ "Eucalyptus surgens". Centre for Australian National Biodiversity Research. Retrieved 29 May 2020.
- ^ "Eucalyptus surgens". APNI. Retrieved 4 January 2020.