Family

Fabaceae

Distribution

This entity is scattered throughout the Murchison and southern Yalgoo IBRA bioregions and extends to the Gibson Desert bioregion; in some, but not all, populations where it has been collected this entity co-occurred with both putative parents (e.g. N of Wiluna: B.R. Maslin et al. BRM 9294 – putative hybrid, B.R. Maslin et al. BRM 9292, 9293 – A. incurvaneura, B.R. Maslin et al. BRM 9295 – A. mulganeura).

Description

This entity has the general facies of a short, broad phyllode form of A. incurvaneura except that the phyllodes are narrowly elliptic (linear in A. incurvaneura) and the sepals are very short (like A. mulganeura). Its salient features are as follows: Youngest phyllodes on new shoots resinous. Phyllodes narrowly elliptic or rarely linear-elliptic, mostly 30–50 mm long and 3–4 mm wide with l: w = 10–22 (A. incurvaneura mostly 40–80 × 1–2.5 mm with l: w = 20–80, A. mulganeura mostly 20–50 × 5–10 mm with l: w = 3–7). Sepals less than half the length of the petals. Pods 5–10 mm wide.

Notes

This putative hybrid is described and discussed in Maslin, B.R. & Reid, J.E. (2012). A taxonomic revision of Mulga (Acacia aneura and its close relatives: Fabaceae) in Western Australia. Nuytsia 22(4): 220.

Available at https://florabase.dpaw.wa.gov.au/nuytsia/search?volume=22&part=4

FOA Reference

Flora of Australia Project

Author

B.R.Maslin