Acacia subg. Phyllodineae

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Acacia subg. Phyllodineae

Description

Trees or shrubs without prickles, rarely with spinescent stipules (not in Malesia). Leaves (bipinnate or) reduced to polymorphous phyllodes of petiolar origin, petiole and rachis with extrafloral nectaries.

Distribution

Asia-Tropical, Australasia, Hawai to the Mascarene Islands present
Mainly Australia (> 900 species), a few species scattered in the area from Hawai to the Mascarene Islands; in Malesia 11 indigenous species, of which 1 endemic. — .

Cytology

Chromosomes 2n = 26 (see Vassal, l.c.); most frequently diploid.

Notes

The infrasubgeneric classification is according to Pedley (1978: 81).
Several species of subg. Phyllodineae have been tried in cultivation, mostly as ornamentals. Acacia auriculiformis and A. mangium, both native to E Malesia and NE Australia, are the most common species in cultivation. Several species of sect. Pulchellae, native to subtropical and temperate Australia, with mature bipinnate leaves, have been tried or are being cultivated especially in the montane areas of Java and the Malay Peninsula.
For further notes on the cultivated species, see p. 206.

Citation

Pedley - in Austrobaileya. 1978: 82
Pedley - in J. Linn. Soc. Bot. 1986: 239