Allocasuarina muelleriana
| Allocasuarina muelleriana | |
|---|---|
| |
| InAnstey Hill Recreation Park | |
Scientific classification
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Casuarinaceae |
| Genus: | Allocasuarina |
| Species: | A. muelleriana
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| Binomial name | |
| Allocasuarina muelleriana | |
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| Occurrence data fromAVH | |
| Synonyms[1] | |
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Allocasuarina muelleriana,commonly known asslaty sheoak,[2]is a species of flowering plant in the familyCasuarinaceaeand isendemicto southern continental Australia. It is adioecious,rarely amonoeciousshrub that has branchlets up to 120 mm (4.7 in) long, the leaves reduced to scales in whorls of five to eight, the fruiting cones 14–30 mm (0.55–1.18 in) long containing winged seeds 6–9 mm (0.24–0.35 in) long.
Description
[edit]Allocasuarina muellerianais dioecious, rarely a monoecious shrub that typically grows to a height of 0.5–4 m (1 ft 8 in – 13 ft 1 in) high and has smooth bark. Its branchlets are more or less erect and up to 120 mm (4.7 in) long, the leaves reduced to scale-like teeth 0.3–0.6 mm (0.012–0.024 in) long, arranged in whorls of five to eight around the branchlets. The sections of branchlet between the leaf whorls are 3–11 mm (0.12–0.43 in) long, 0.6–1.1 mm (0.024–0.043 in) wide and are often waxy. Male flowers are arranged in spikes 10–40 mm (0.39–1.57 in) long and often appear like string of beads, theanthers0.5–1.0 mm (0.020–0.039 in) long. Female cones are cylindrical,sessileor on apeduncleup to 16 mm (0.63 in) long. Mature cones are cylindrical 14–30 mm (0.55–1.18 in) long and 9–18 mm (0.35–0.71 in) in diameter, containing black, winged seeds 6–9 mm (0.24–0.35 in) long.[2][3][4]
Taxonomy
[edit]Slaty sheoak was first formally described in 1856 byFriedrich Anton Wilhelm Miquelwho gave it the nameCasuarina muellerianain the journal,Nederlandsch Kruidkundig Archieffrom specimens collected in theMount Lofty RangesbyFerdinand von Mueller.[5][6]In 1982, Johnson transferred the species toAllocasuarinaasA. muellerianain theJournal of the Adelaide Botanic Gardens.[7][8]
Johnson described three subspecies ofA. muellerianain theFlora of Australiaand the names are accepted by theAustralian Plant Census:
- Allocasuarina muellerianasubsp.alticolaL.A.S.Johnson[9]has the sections of branchlet between the leaf whorls 5–7 mm (0.20–0.28 in) long and 0.7–1 mm (0.028–0.039 in) wide, the mature cones sessile or on a peduncle up to 3 mm (0.12 in) long.[10]
- Allocasuarina muelleriana(Miq.)L.A.S.Johnsonsubsp.muellerianaL.A.S.Johnson[11]has the sections of branchlet between the leaf whorls 3–8 mm (0.12–0.31 in) long and 0.6–0.8 mm (0.024–0.031 in) wide, the mature cones usually on a peduncle 1–8 mm (0.039–0.315 in) long.[4][12]
- Allocasuarina muellerianasubsp.notocolpicaL.A.S.Johnson[13]has the sections of branchlet between the leaf whorls 5–11 mm (0.20–0.43 in) long and 0.9–1.1 mm (0.035–0.043 in) wide, the mature cones on a stout peduncle 8–17 mm (0.31–0.67 in) long.[14]
Distribution and habitat
[edit]Allocasuarina moniliferagrows in heath and scrub. Subspeciesmuellerianaoccurs fromCedunaand theFlinders Ranges,includingKangaroo Islandin South Australia toBendigoin Victoria. Subspeciesalticolais found in the north-eastern part of the species' range from theFreeling HeightstoWilpena Poundand subsp.notocolpicais restricted to Kangaroo Island.[2][4][10][12][14]
References
[edit]- ^ab"Allocasuarina muelleriana".Australian Plant Census.Retrieved26 June2023.
- ^abc"Allocasuarina muelleriana".Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra.Retrieved26 June2023.
- ^"Allocasuarina muelleriana".State Herbarium of South Australia.Retrieved26 June2023.
- ^abcEntwisle, Timothy; Stajsic, Val."Allocasuarina muellerianasubsp.muelleriana".Royal Botanic Gardens Victoria.Retrieved26 June2023.
- ^"Casuarina muelleriana".APNI.Retrieved26 June2023.
- ^Miquel, Friedrich A.W. (1856)."Stirpes Novo-Hollandas a Ferd Mullero collectas determinavit".Nederlandsch Kruidkundig Archief.4(1): 99–100.Retrieved26 June2023.
- ^"Allocasuarina muelleriana".APNI.Retrieved26 June2023.
- ^Johnson, Lawrence A.S. (1982)."Notes on Casuarinaceae II".Journal of the Adelaide Botanic Gardens.6(1): 77.Retrieved26 June2023.
- ^"Allocasuarina muellerianasubsp.alticola".Australian Plant Census.Retrieved26 June2023.
- ^ab"Allocasuarina muellerianasubsp.alticola".Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra.Retrieved26 June2023.
- ^"Allocasuarina muellerianasubsp.muelleriana".Australian Plant Census.Retrieved26 June2023.
- ^ab"Allocasuarina muellerianasubsp.muelleriana".Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra.Retrieved26 June2023.
- ^"Allocasuarina muellerianasubsp.notocolpica".Australian Plant Census.Retrieved26 June2023.
- ^ab"Allocasuarina muellerianasubsp.notocolpica".Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra.Retrieved26 June2023.