Abstract
Phyllodes of species of Acacia from the sections Julflorae, Plurinerves, Lycopodiifoliae and
Phyllodineae are described in respect of the disposition of the stomates relative to the phyllode surface,
size of the substomatal cavities, outline of the phyllode as seen in transverse section, and disposition
of the smaller vascular bundles. The first three of these characters are shown to be related to stickiness
and the third and fourth to the relative humidity or aridity of the environment. The geographical
distribution of sticky species in central and eastern Australia is determined. Sticky species occur
throughout the region but are commoner in the more arid interior than in the more humid coastal
regions. No relationship is apparent between stickiness and membership of the sections.
Subject
Plant Science,Ecology, Evolution, Behavior and Systematics
Cited by
7 articles.
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