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Myrtaceae -- Myrtle family

    Roger G. Skolmen

    Saligna eucalyptus (Eucalyptus saligna), also called  Sydney bluegum, is a fast growing tree, valuable in plantation  forestry. It grows in several warm temperate to subtropical  countries, such as Brazil and the Republic of South Africa, and  the state of Hawaii.

    The name Eucalyptus saligna was given to type specimens in  1797. Another very similar but distinct species, found within the  same geographic range, Eucalyptus grandis, was not named  until 1918 (12). Before 1918, many introductions were made  worldwide of seed collected from "E. saligna" that  bore the characteristics of the type later to be called E.  grandis. In most countries where introductions were made,  therefore, considerable mixed planting and hybridization of the  two species are present. Thus, in Hawaii, most saligna eucalyptus  stands contain trees with a range of characteristics intermediate  between those of E. saligna and E. grandis.  Eucalyptus grandis is now preferred in South Africa because  it self-prunes more readily and has smaller branches (28); and in  Brazil because it is resistant to a canker disease and can be  propagated vegetatively (6). Eucalyptus saligna has grown  well where the climate is cooler; for example, in northern New  Zealand (12) and in the uplands of Hawaii. Recent provenance  tests of the two species in Hawaii suggest that E. grandis  would be a better choice than E. saligna for most  sites (26).


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Roger G. Skolmen

Source: Silvics of North America

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