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Flora of Australia Online

Grevillea gariwerdensis Makinson, Fl. Australia 17A: 501 (2000)

T: 2 miles [3.2 km] NE of Halls Gap on Pomonal Rd, Vic., 14 Nov. 1966, A.C.Beauglehole 22204 ; holo: MEL; iso: NSW.

Grevillea linearifolia form 'i' (Grampians form), of D.J.McGillivray & R.O.Makinson, Grevillea 345 (1993). 

Grevillea sp. aff. micrantha Grampians, of P.M.Olde & N.R.Marriott, Grevillea Book 3: 25 (1995). 

G. sp. 1, of R.O.Makinson, Fl. Victoria 3: 846, 856, fig. 173h (1996). 

[Grevillea linearifolia auct. non (Cav.) Druce: I.R.McCann, Grampians in Flower 92 (1994)] 

Illustrations: I.R.McCann, Grampians in Flower 92 (1994), as Grevillea linearifolia ; P.M.Olde & N.R.Marriott, Grevillea Book 3: 24 (14C), 25 (top centre) (1995), as Grevillea sp. aff. micrantha Grampians.

Regenerates from seed or rhizomes. Presumed insect-pollinated.

Shrub 0.3–1 m tall. Branchlets angular and ridged, subsericeous between ridges, often secund. Leaves sublinear to narrowly oblong-elliptic or -obovate, often slightly incurved, 1–3 (–5) cm long, 1–3 mm wide; upper surface with midvein and intramarginal veins usually prominent and faintly granulose; margins shortly refracted; lower surface usually partly exposed, subsericeous. Conflorescence usually terminal, erect, level with or scarcely exceeded by leaf apices, usually pedunculate (peduncles to 15 mm long), regular, umbelloid, 6–16-flowered. Flowers adaxially oriented. Flower colour: perianth white to pink with brownish limb (hairs); style white to pink. Perianth subsericeous to tomentose outside, scantily bearded (rarely a few hairs only) inside opposite ovary. Pistil 7–8.5 mm long; style sharply geniculate 1–2 mm below apex, with minute hairs or papillae within apical 1 mm; pollen-presenter oblique. Follicle narrowly ovoid, 9–10 mm long, faintly warty. Fig. 23E–F.

Occurs in Vic. in the Grampians Ra. Grows usually in low moist heath in sandy soils. Flowers Oct.–Jan. Map 220.

Vic.: Black Rd, Oct. 1929, J.W.Audas (MEL); 16 km N of Halls Gap, Deep Ck, on Mt Zero road, Oct. 1955, N.F.Learmonth [A.C.Beauglehole 7463 ] (MEL); Plantation Rd, 12.8 km N of Halls Gap, T.B.Muir 2228 (K, MEL).

Grevillea gariwerdensis is narrowly distinct from G. micrantha , which has the upper leaf surface often densely granulose, and lacks a beard on the inner surface of the perianth or at most has a few hairs surmounting a cushion-like pulvinus opposite the ovary. Grevillea gariwerdensis usually has a more conspicuous (albeit still scanty and short-haired) beard; it also has coarser, broader leaves, and a tendency to pedunculate or pseudo-pedunculate conflorescences (sometimes some sessile). Grevillea gariwerdensis is very similar indeed to G. parviflora , a N.S.W. endemic, which has a profuse beard of longer hairs on the inner surface of the perianth.

(R.O.Makinson)

 

Data derived from Flora of Australia Volumes 16 (1995), 17A (2000) and 17B (1999), products of ABRS, ©Commonwealth of Australia