Grevillea microstegia Molyneux

Mt Cassell Grevillea

Muelleria 3: 141 (1975) APNI

Taxonomic status:Accepted

Occurrence status:Endemic

Establishment means:Native

Threat status:Victoria: rare (r); listed in Flora and Fauna Guarantee Act 1988

Prostrate to procumbent or straggling shrub, 0.3–1 m high. Branchlet indumentum sparse villous to glabrescent. Leaves deeply and regularly pinnatisect, 2–6 cm long, 1.5–5 cm wide; primary lobes 5–13, 0.5–2.5 cm long, 3–7 mm wide, simple or usually 2–5-fid or -dentate, sometimes with some tertiary toothing; ultimate lobes triangular; lower surface sparsely tomentose or occasionally glabrous; margin recurved. Conflorescences terminal, erect, simple, secund, 3.5–5 cm long; peduncles 5–15 mm long, 0.8–1 mm wide; rachises tomentose; perianth reddish-brown, outer surface tomentose to subsericeous, inner surface glabrous; pistil 13.5–15 mm long, ovary stipitate, subvillous; style red with yellow tip, glabrous, pollen presenter oblique. Fruits subsericeous to open-subvillous, with red-brown markings. Flowers ?Oct.–Dec.

Restricted to the Mt William Range area of the Grampians, particularly on and around Mt Cassell. Grows in open-forest and scrub, in sandy or rocky soil on sandstone.

Grevillea microstegia is most similar to G. aquifolium, G. dryophylla and G. montis-cole. Grevillea aquifolium has a longer pistil (21–26 mm long). Grevillea dryophylla has broader primary leaf lobes (0.5–2 cm wide) and shorter secondary lobes (scarcely measurable), usually a shorter peduncle (< 1.5 cm long) and shorter conflorescences (1–4 cm long). Grevillea montis-cole has broad triangular leaf lobes, floral bracts 2–4.5 mm long, and also usually longer pedicels 1.5–4.5 mm long.

Source: Makinson, R.O. (1996). Grevillea. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2017-12-05

Olde, P. & Marriott, N. (1995). The Grevillea Book, Kangaroo Press, Kenhurst, NSW, Australia.

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life Life
kingdom Plantae
phylum Tracheophyta
superorder Proteanae
order Proteales
family Proteaceae
genus Grevillea
Higher taxa