Taxonomy and autecology of the grey box (Eucalyptus moluccana roxb. s. lat.) - Myrtaceae
type: CreativeWork
description: Grey box forms part of a woodland complex that is restricted to the eastern part of Australia from 170 to 35° S. Lat. and occurs within a range of about 1 x 106 km2. It is not an important timber species although it has some significant uses. It is of indirect importance as it is related to lands of high agronomic value in New South Wales and is also a significant component of woodlands in Queensland. Apart from the geographic extent of the complex it is also comprised of a number of closely related taxa that have provided considerable taxonomic problems in the past due to their clinal nature. Before any ecological investigation could be commenced it was therefore vital to make certain that the species under consideration were genecotypically distinct so that management predictions could be applied with some certainty. This required a comprehensive taxonomic revision coupled with a controlled environment study to test genotype identity. For the first part, numerical techniques were used to handle the large number of closely related morphological attributes. Pattern analysis programs available on the CSIRO CYBER 76 involving classification and ordination procedures provided a background of taxonomic pattern within grey box that was used to assist the subjectively based revision. The advantage of such a method allowed some unexpected insight into morphological relationships that were clearly related to environmental variables. 13 The revision produced three new subspecies of E. moluccana, namely subsp. pedicellata, subsp. queenslandica and subsp. crassifolia, all of which follow a geoclimatic continuum. Classifications and the accompanying ordination of growth, morphological and chemical data from seedlings of grey box grown under a range of temperature maxima (150, 21°, 270, 33° and 36°C) were compared with those of the parents. A high correlation was obtained, indicating that at an infraspecific level there is support for the hypothesis of nonspecificity. A method o…
abstract: Grey box forms part of a woodland complex that is restricted to the eastern part of Australia from 170 to 35° S. Lat. and occurs within a range of about 1 x 106 km2. It is not an important timber species although it has some significant uses. It is of indirect importance as it is related to lands of high agronomic value in New South Wales and is also a significant component of woodlands in Queensland. Apart from the geographic extent of the complex it is also comprised of a number of closely related taxa that have provided considerable taxonomic problems in the past due to their clinal nature. Before any ecological investigation could be commenced it was therefore vital to make certain that the species under consideration were genecotypically distinct so that management predictions could be applied with some certainty. This required a comprehensive taxonomic revision coupled with a controlled environment study to test genotype identity. For the first part, numerical techniques were used to handle the large number of closely related morphological attributes. Pattern analysis programs available on the CSIRO CYBER 76 involving classification and ordination procedures provided a background of taxonomic pattern within grey box that was used to assist the subjectively based revision. The advantage of such a method allowed some unexpected insight into morphological relationships that were clearly related to environmental variables. 13 The revision produced three new subspecies of E. moluccana, namely subsp. pedicellata, subsp. queenslandica and subsp. crassifolia, all of which follow a geoclimatic continuum. Classifications and the accompanying ordination of growth, morphological and chemical data from seedlings of grey box grown under a range of temperature maxima (150, 21°, 270, 33° and 36°C) were compared with those of the parents. A high correlation was obtained, indicating that at an infraspecific level there is support for the hypothesis of nonspecificity. A method o…
author: Gillison, Andrew Napier
language: en_AU
date published: 1976
date modified: 2026-07-24T01:07:27Z
provider: Australian Catholic University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Australian Catholic University

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property ID: Handle
value: http://hdl.handle.net/1885/10836