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Corymbia calophylla

(Marri)

Interesting Facts

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Common Names

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Common Names in English:

Marri, Red Gum

Description

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Family Myrtaceae

Trees or shrubs , evergreen , usually with essential oils-containing cavities in foliage , branchlets , and flowers. Stipules absent or small and caducous . Leaves opposite, occasionally alternate, occasionally ternate or pseudo-whorled; leaf blade with secondary veins pinnate or basal, often with intramarginal veins near margin , margin usually entire. Inflorescences axillary or terminal , cymose but variously arranged, 1- to many-flowered. Flowers bisexual , sometimes polygamous, actinomorphic . Hypanthium usually adnate to ovary and prolonged above it. Calyx lobes (3 or) 4 or 5 or more, distinct or connate into a calyptra. Petals 4 or 5, sometimes absent, distinct or connate into a calyptra, sometimes coherent and pseudocalyptrate. Stamens usually numerous , in 1 to several whorls; filaments distinct or connate into 5 bundles opposite petals; anthers 2-celled, dorsifixed or basifixed , dehiscing longitudinally or rarely terminally; connectives usually terminating in 1 or more apical glands . Ovary inferior, semi-inferior, or very rarely superior, carpels 2 to more, locules 1 to many, pseudoseptum sometimes present, placentation usually axile but occasionally parietal ; ovules 1 to several per locule. Style single; stigma single. Fruit a capsule, berry, drupaceous berry, or drupe, 1- to many-seeded. Seeds without endosperm or endosperm sparse and thin; testa cartilaginous or thinly membranous, sometimes absent; embryo straight or curved .

About 130 genera and 4500-5000 species: Mediterranean region, sub-Saharan Africa, Madagascar, tropical and temperate Asia, Australia, Pacific islands, tropical and South America; 10 genera (five introduced ) and 121 species (50 endemic, 32 introduced treated here) in China.

Many Myrtaceae are cultivated garden ornamentals , street trees, or plantation trees. Some members of tribe Syzygieae are grown as fruit crops. In addition to the cultivated members of the family treated here, some others grown in China include Acca sellowiana (O. Berg ) Burrett (Feijoa sellowiana (O. Berg) O. Berg), Myrtus communis Linnaeus, and Syncarpia glomulifera (Smith) Niedenzu.[1]

Physical Description

Habit: Evergreen .

Flowers: Bloom Period: June, July, August, September. • Flower Color: near white, pale pink, pink, red, white

Size/Age/Growth

Size: over 40' tall.

Habitat

Typically found at an altitude of 0 to 328 meters (0 to 1,076 feet).[2]

Biology

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Growth

Culture: Space 30-40' apart.

Soil: Minimum pH: 5.6 • Maximum pH: 7.5

Sunlight: Sun Exposure: Full Sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 9a, 9b, 10a, 10b, 11. (map)

Taxonomy

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Synonyms

Eucalyptus calophylla Lindl. • Eucalyptus calophylla R. Br. • Eucalyptus calophylla var. maideniana Hochr. • Eucalyptus calophylla var. parviflora Blakely • Eucalyptus calophylla var. typica Hochr. • Eucalyptus ficifolia var. alba Maiden ex Blakely

Notes

Basionym : Myrtaceae Eucalyptus calophylla R.Br.

Basionym author: (Lindl.)

Name Status: Accepted Name .

Last scrutiny: 11-Nov-2003

Similar Species

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Members of the genus Corymbia

ZipcodeZoo has pages for 13 species, subspecies, varieties, forms, and cultivars in this genus:

C. calophylla (Marri) · C. citriodora (Lemon Scented Gum) · C. citriodora var. variegata (Spotted Gum) · C. eximia (Yellow Bloodwood) · C. eximia nana (Dwarf Yellow Bloodwood) · C. ficifolia (Red Flowering Gum) · C. gummifera (Red Bloodwood) · C. maculata (Spotted Gum) · C. papuana (Ghost Gum) · C. ptychocarpa (Swamp Bloodwood) · C. terminalis (Bloodwood) · C. torelliana (Cadaga) · C. trachyphloia (Brown Bloodwood)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal January 30, 2008:

Identifiers

Footnotes

  1. Jie Chen & Lyn A. Craven "Myrtaceae". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Mean = 74.100 meters (243.110 feet), Standard Deviation = 520.980 based on 115 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/19/2012