Allocasuarina portuensis L.A.S.Johnson APNI* 
Description: Slender dioecious shrub 3–5 m high; bark smooth, grey-brown.
Branchlets drooping to spreading, to 27 cm long; articles smooth, usually faintly waxy, 13–20 mm long, 0.8–1.0 mm in diam.; ridges rounded-convex to somewhat angular; teeth 7 or 8, spreading to recurved, often slightly overlapping, often withering, 0.7–1.1 mm long.
Male spikes moniliform, 5–10 cm long, 3.5–4.5 whorls per cm; bracteoles persistent; anther 0.8–1 mm long.
Cones cylindrical; on peduncles 2–15 mm long; cone body 12–15 mm long, 8–10 mm diam.; bracteoles obtuse, pyramidal, with protuberance shorter than bracteole body. Samara 4.0–5.0 mm long, dark brown.
Distribution and occurrence: Nielsen Park, Sydney Harbour National Park. Known only from 10 individuals in 1990; by 2008, cultivated only (mostly at Nielsen Park, South Head and the Botanic Garden at Mt Annan). In tall shrubland on slope of sandstone headland.
NSW subdivisions: CC
Threatened species: NSW BCA: Endangered; Commonwealth EPBC: Endangered
Close to A. rigida, differing in the strongly moniliform male spikes, more rounded ridges (phyllichnia) and generally more slender articles. From A. diminuta, it differs in its spreading and mostly slightly overlapping teeth, its longer articles and its longer, denser male spikes.
Text by K. L. Wilson & L. A. S. Johnson (1990); edited KL Wilson (Feb 2014, April 2026)
Taxon concept: Flora of NSW 1 (1990); Wilson and Johnson, Flora of Australia vol. 3 (1989)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
|
.jpg)
.jpg)
.jpg)
