Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/12333
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Type: Journal article
Title: Seedling characteristics in the Casuarinaceae
Author: Hwang, R.
Conran, J.
Citation: Telopea, 2000; 8(4):429-439
Publisher: National Herbarium of New South Wales, Royal Botanic Gardens, Sydney
Issue Date: 2000
ISSN: 0312-9764
2200-4025
Abstract: Seedling characters and their distributions within the genera of the Casuarinaceae and their sections are described for 45 taxa in the family representing three of the four genera and all 14 of the currently recognised sections in Allocasuarina. The cotyledons in Gymnostoma are petiolate, a feature absent from the other taxa examined. There were no obvious genus-level seedling features distinguishing either Casuarina or Allocasuarina, although red-purple cotyledons at senescence are common in Casuarina but rare in Allocasuarina. Several features are informative at the sectional level: suppression of secondary cotyledon branches is only found in Allocasuarina sects, Oxypitys, Platypitys, Echinopitys and Ceropitys, as were abortion of the primary shoot and divergent tooth apices, the latter two characters otherwise found only in A. monilifera and A. microstachya. Seedlings of sect. Ceropitys showed a distinctive growth habit making them look like Lycopodium shoots with outgrowths resembling microphylls.
RMID: 0001000018
DOI: 10.7751/telopea20002002
Published version: http://www.rbgsyd.nsw.gov.au/__data/assets/pdf_file/0005/73193/Tel8Hwa429.pdf
Appears in Collections:Ecology, Evolution and Landscape Science publications
Environment Institute publications

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