Eucalyptus newbeyi       0

Author: Dennis John Carr (1915-) & Stella Grace Maisie Carr (1912-1988)
Family: Myrtaceae Subfamily: Myrtoideae Tribe: Eucalypteae
Genus: Eucalyptus Subgenus: Symphyomyrtus Section: Bisectae Subsection: Hadrotes Serie: Lehmannianae Subserie: Liberae
English name: Newbey's Mallet
Zone: Australia

Description
It is a mallet endemic to Western Australia, known only from two areas, near Beaufort Inlet and Fitzgerald River National Park. The species is named after Ken Newbey (1936-1988). Ken Newbey was a farmer, botanical collector and ecologist from Ongerup in Western Australia. He was the first to collect this species. It grows in well-drained near-neutral loams or clays which overlie soft rock.
Eucalyptus newbeyi Observed in Australia by Dean Nicolle (license)
Botanical Description
It is a mallet to 8m tall. The lignotuber is absent. The bark is smooth throughout, mottled yellow-brown and grey to creamy yellow, shedding in flakes. The branchlets are lacking oil glands in the pith.

The juvenile leaves are not seen. The adult leaves are alternate, petioles 0.5-1cm long. The blade is narrowly lanceolate to narrowly elliptical, 4-8cm long, 0.5-1.5cm wide, base tapering to petiole, margin entire, apex pointed, rarely rounded and apiculate. The side-veins are at an acute or wider angle to midrib, reticulation moderate to dense, broken, intramarginal vein close to margin, oil glands obscure or scattered, very irregular, island and intersectional.

The inflorescence is axillary unbranched, peduncles down-turned, strap-like, 3-5.5cm long. There are usually 7 buds per umbel, rarely 3 or 9, sessile to subsessile. The mature buds are elongated, 5.2-6cm long, 1.1-1.6cm wide, scar present (outer operculum shed early), operculum horn-shaped, circa 3-4 times as long as the hypanthium, dilated basally, smooth. The stamens are erect, anthers narrowly oblong, versatile, dorsifixed, dehiscing by longitudinal slits. The style is long and straight, the stigma is rounded, 3 locules, the placentae each with 6 vertical rows of ovules. The flowers are yellowish green.

The fruit is on down-turned peduncles, sessile, campanulate to obconical, 1-2.7cm long, 1.8-2.8cm wide, dehiscing by elliptical holes formed when the 3 valves split along the sutures but remain connected by the style base. However, this connection eventually weathers and the holes coalesce, disc covering the valves. The seeds are black, 1.5-4mm long, ovoid to angularly so, dorsal surface shallowly reticulate, a narrow flange on at least part of the margin, hilum ventral.
Member of
The Genus: Eucalyptus Subgenus: Symphyomyrtus Section: Bisectae Subsection: Hadrotes Serie: Lehmannianae Subserie: Liberae having the following characters: The cotyledons are coarsely bisected, buds have an operculum scar, a long (inner) operculum and erect stamens, fruit are large, thick-rimmed and held rigidly. There are 12 species in subsection Hadrotes, two species have oil glands in the pith whilst 10 species lack these oil glands.
Useful plant
It is an excellent nectar-producer, but the timber has no commercial use. This ornamental species has potential for greater cultivation in gardens and parks and for shade and shelter.

References
- Encyclopedia of Australian Plants, Elliot W. Rodger & Jones David L. 2012 Vol. 4 pag. 153-154. ISBN
- Eucalypts of Australia. Eucalyptus newbeyi
- Modelling seed germination response to temperature in Eucalyptus L'Her. (Myrtaceae) species in the context of global warming, Anne Cochrane. Seed Science Research 2017 Vol. 27(2) pag. 99-109. ResearchGate
References for the genus
- Encyclopedia of Australian Plants, Elliot W. Rodger & Jones David L. 2012. ISBN
- Seeds of woody plants in the United States, Schopmeyer Clifford Scharff and others. 1974 pag. 384-392. Address
- A general history of the dichlamydeous plants, comprising complete descriptions of the different orders, Don, George. 1831 Vol. 2. Address
- A new classification of sections and series in Eucalyptus subg. Eudesmia (Myrtaceae), Bayly, Michael and Mclay, Todd and Cantrill, David and Fowler, Rachael. Muelleria: An Australian Journal of Botany 2023 Vol. 41 pag. 50-54. DOI
- A new series, Incognitae, of Eucalyptus L'Her., including a new species endemic to Fleurieu Peninsula and Kangaroo Island, South Australia, Nicolle, D. Journal of the Adelaide Botanic Garden 1995 pag. 73-78. JStor
- A new species and a new combination in the shining peppermint group of Eucalyptus and notes on the distribution of Eucalyptus willisii sens. strict, Rule, K. Muelleria: An Australian Journal of Botany 2008 Vol. 26. DOI
- A revision of the Yellow Bloodwoods (Myrtaceae: Eucalyptus ser. Naviculares Maiden), Brooker, M.I.H and Bean, Tony. Austrobaileya 1991 Vol. 3 pag. 409-437. DOI
- A taxonomic revision of Eucalyptus wandoo, E. redunca and allied species (Eucalyptus series Levispermae Maiden - Myrtaceae) in Western Australia, Brooker, M. I. H. (Murray Ian Hill), and Hopper, Stephen D. Nuytsia 1991 Vol. 8 pag. 1-189. Address
- Eucalyptus revelata, a rare new species related to E. mooreana (Myrtaceae) from the Kimberley region of Western Australia, Nicolle, Dean and Barrett, Russell L and others. Nuytsia 2018 Vol. 29 pag. 109-118. Address
- Eucalyptus wimmerensis revisited and notes on the morphologies and taxonomies of five Victorian mallee-boxes, Rule, K. Muelleria: An Australian Journal of Botany 2018 Vol. 37 pag. 39-64. DOI
- Five new endemic eucalypts for Victoria, Rule, K. Muelleria 2012 Vol. 30 pag. 83-105. DOI
- Four new species of Eucalyptus, S. T. Blake. Austrobaileya 1977 Vol. 1(1) pag. 1-9. JStor
- Four new species of ironbark (Eucalyptus L'Herit., Myrtaceae) from southern Queensland, Bean, Tony and M.I.H.Brooker,. Austrobaileya 1994 Vol. 4 pag. 187-194.
- Multivariate analysis of morphological variation in Eucalyptus series Psathyroxyla Blakely (Myrtaceae): taxonomic implications, Pfeil, BE and Henwood, MJ. Telopea 2004 Vol. 10(3) pag. 711-724. Address
- New subspecies in Eucalyptus caesia and in E. crucis (Myrtaceae) of Western Australia, Brooker, M. I. H. (Murray Ian Hill), and Hopper, S D. Nuytsia 1982 Vol. 4 pag. 113-128. Address
- New taxa and combinations in Eucalyptus and Angophora (Myrtaceae), Johnson, Lawrence and Hill, Kenneth. Telopea 1990 Vol. 4 pag. 37-108. DOI
- New taxa in Eucalyptus (Myrtaceae) for Victoria and notes on Victorian populations of Eucalyptus calycogona, Rule, K. Muelleria 2004 Vol. 20 pag. 9-32. DOI
- New taxa of Eucalyptus informal subgenus Symphyomyrtus (Myrtaceae), endemic to South Australia, Nicolle, Dean. Journal of the Adelaide Botanic Garden 2000 pag. 83-94. JStor
- Notes on Eucalyptus ser. Psathyroxyla Blakely (Myrtaceae) and other 'Ash group' eucalypts, Bean, Tony. Austrobaileya 1997 Vol. 5 pag. 125-135. DOI
- Notes on the narrow-leaved Ironbarks (Myrtaceae: Eucalyptus subseries Subglaucae), Bean, Tony. Austrobaileya 2005 Vol. 7 pag. 111-120. DOI
- Resolution of a 35-year taxonomic dilemma: Eucalyptus sp. Howes Swamp Creek (Myrtaceae) from eastern Wollemi National Park, New South Wales, Bell, Stephen and Phillips, Gavin and Nicolle, Dean. Telopea 2022 Vol. 25 pag. 151-163. DOI
- Six new infraspecific taxa in Eucalyptus (Myrtaceae) for Victoria, Rule, K. Muelleria 2011 Vol. 29 pag. 3-15. DOI
- Systematic studies in the eucalypts — 3 New taxa and combinations in Eucalyptus (Myrtaceae), Hill, Kenneth & Johnson, L. A. S. Telopea 1991 Vol. 4(2) pag. 223-267. Address
- Systematic studies in the eucalypts — 4 New taxa in Eucalyptus (Myrtaceae), K.D. Hill & L-A.S. Johnson. Telopea 1991 Vol. 4(2) pag. 312-349. Address
- Systematic studies in the Eucalypts 5. new taxa and combination in eucalyptus myrtaceae in western australia, Hill, K.D.; Johnson, L.A.S. Telopea 1992 Vol. 4(4) pag. 561-634. Address
- Systematic studies in the eucalypts. 10. New tropical and subtropical eucalypts from Australia and New Guinea (Eucalyptus, Myrtaceae), Hill, KD and Johnson, LAS. Telopea 2000 Vol. 8(4) pag. 503-539. Address
- Systematic studies in the eucalypts. 6. A revision of the coolibahs, Eucalyptus subgenus; Symphyomyrtus section; Adnataria series; Oliganthae subseries; Microthecosae (Myrtaceae), Hill, KD and Johnson, LAS. Telopea 1994 Vol. 5(4) pag. 743-771. Address
- Systematic studies in the eucalypts. 8. A review of the eudesmioid eucalypts, Eucalyptus subgenus Eudesmia (Myrtaceae), Hill, KD and Johnson, LAS. Telopea 1998 Vol. 7(4) pag. 375-414. Address
- Systematic studies in the Eucalypts. 9. A review of series Sociales (Eucalyptus subgenus Symphyomyrtus, Section Bisectaria, Myrtaceae), Hill, K.D. and Johnson, L.A.S. Telopea 1999 Vol. 8 (2) pag. 165-218. Address
- Taxonomic and nomenclatural notes on the Eastern grey boxes (Eucalyptus ser. Moluccanae Chippendale, Myrtaceae) and the reinstatement of Eucalyptus woollsiana R.T.Baker, Bean, Tony. Austrobaileya 2009 Vol. 8 pag. 25-34. DOI
- The Ironbarks Allied to Eucalyptus crebra F. Muell. and the Description of a New Species, E. quadricostata, in the Group, Brooker, M. Austrobaileya 1985 Vol. 2 pag. 148-152. DOI
- Three new Victorian species related to Eucalyptus aromaphloia L.D. Pryor and J.H. Willis and notes on the polymorphic nature of that species, Rule, K. Muelleria: An Australian Journal of Botany 1996 Vol. 9 pag. 133-143. DOI
- Two new mallee Eucalypts (Myrtaceae) from Gippsland, Victoria, Rule, K. and Molyneux, W.M. Muelleria 2011 Vol. 29 pag. 16-26. DOI
- Two new subspecific taxa within the Eucalyptus Series Argyrophyllae for Victoria, Rule, Kevin and Walsh, Neville. Muelleria: An Australian Journal of Botany 2017 Vol. 36 pag. 81-91. DOI
- Typification of some names in Eucalyptus (Myrtaceae), Part 1, Bean, Tony. Telopea 2009 Vol. 12 pag. 309-319. DOI
- Typification of some names in Eucalyptus (Myrtaceae), Part 2, Bean, Tony. Telopea 2010 Vol. 12 pag. 469-477. ResearchGate
- Typification of some names in Eucalyptus (Myrtaceae), Part 3, Bean, Tony. Telopea 2010 Vol. 12 pag. 511-520. ResearchGate
- Hommes et Plantes. Vol. 58 pag. 34-41. Address
- PlantÆxoticA. 2015 Vol. 28 pag. 18-26. Address
- PlantÆxoticA. 2015 Vol. 21 pag. 4-19. Address
- PlantÆxoticA. 2015 Vol. 11 pag. 7-11. Address
- Vegetative propagation of Eucalyptus through cuttings, Banthia K. M., Joshi C. M., Venkata Reddy P. B. & Sinha J. P. Indian Pulp & Paper Technical Association 1988 Vol. 25(1) pag. 37-40. Address
General specifications
Biological type: tree
Frost resistance: 19ºF
Leaf color: dark green
Flower color: yellow
No transplantation: Yes
Reproduction mode: hermaphrodite plant whoes flowers produce both male and female gametes
IUCN Red List of threatened species status: Vulnerable

Specifications for the Mediterranean basin
Adult size (h x w): 26,2ft x 19,6ft
Sun exposure: full sun (Sun hours: >6h
Foliage: evergreen
Growth: fast
Flowering time from March until June

Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 1x a week pH 6.5
Logical sequence of containers for: Eucalyptus; forestry plate, forestry pot 3L, Airpot 12L, Airpot 50L, Airpot 800L
Propagation is done by cuttings

Ecology in its country of origin
Rainfall: 400-600mm
Gravelly soil: a little
Clay soil: much
Sandy soil: much
Draining soil: a little
Coastal soil: a little
Ornemental: much
Sowing instructions
SPRING Select the largest and most fleshy BLACK seeds. Sow the seeds at 2mm depth in the Well Drained Seed Sowing Mix between 64-72°F. During germination keep the substrate moist and in daylight. The seeds germinate in 3-6 weeks. The viability of the seeds, kept under good conditions, is 10 years.
The average seed weight is 746,3 per gram (0,00134g).

Germination references
- Modelling seed germination response to temperature in Eucalyptus L'Her. (Myrtaceae) species in the context of global warming, Anne Cochrane. Seed Science Research 2017 Vol. 27(2) pag. 99-109. ResearchGate


Germination references for the genus
- Seeds of woody plants in the United States, Schopmeyer Clifford Scharff and others. 1974 pag. 384-392. Address
- Eucalypt seed and sowing. Native Forest Silviculture Technical Bulletin 2010 Vol. 1. Address
- USDA Forest Service's Woody Plant Seed Manual, John K. Francis and Craig D.Whitesell. 2008. Address

Experiences in the garden
04-01-18A Obtaining seeds from seed provider Nindethana Seeds collected in 'Nindethana Seeds8>Bermer Bay'. (Wild origin)
16-05-18 Send a batch to nursery Railhet, they did not geminate.