Grevillea psilantha McGill.
New Names Grevillea 12 (1986)
Conservation Code:
Priority Two
Naturalised Status: Native to Western Australia
Name Status:
Current
Brief Description
Grazyna Paczkowska,
Monday 14 August 1995
Much-branched shrub, to 1.2 m high. Fl. white-cream, Jun to Jul. Skeletal soils on sandstone. In rock crevices on the walls of gorges. Distribution: Northern. OVP.
Scientific Description
Chris Hollister and Nicholas S. Lander,
Tuesday 8 April 2008
Habit and leaf form. Shrubs, 1–2 m high. Branchlets not glaucous. Leaves simple, 80–130 mm long overall. Leaf blade 3–8 mm wide, undissected, flat, linear. Margins entire, flat. Hairs straight.
Inflorescence and floral features. Inflorescence terminal; a raceme. Flowers white, regular. Pedicel 4–5.5 mm long. Perianth 4–5 mm long, glabrous, 4 -partite; lobes all free. Stamens 4. Pistil 6–7.5 mm long, stipitate; stipe 1–1.5 mm long. Ovary glabrous. Styles glabrous, white. Pollen presenter oblique.
Fruit features. Fruit smooth or ribbed or ridged, obovoid, glabrous, 9–14 mm long.
Flowering Time. April, or May, or June, or July.
Habitat. In rocky or stony soil; occupying crevices in walls of sandstone gorges.
Distribution. Western Australia. Western Australian Botanical Province(s): Northern; IBRA Bioregions N: OVP. Western Australian native; endemic to Western Australia.
Comments. Grevillea psilantha differs from all other species in this group in several features. Its follicles are retrorse on incurved stipes, are laterally compressed-obovoid, and have a clear lacquer-like subviscid coating on the surface (follicles erect on ± straight stipe, obliquely obovoid to narrowly so to subcylindrical and lacking a subviscid coating in other species of the group). Grevillea psilantha also has pedicels 4.5–5 mm long (cf. up to 4 mm long) and ovarian stipes ca 1.6–1.7 mm long (cf. less than 1 mm long). While clearly closely related to other members of this group, there may also be an affinity with G. stenobotrya. – Barker, W.R. et al. (1999).
Etymology. psilantha (Gk): psilos bare + anthos a flower (refers to the glabrous flowers).
Descriptions were generated using DELTA format and DELTA software: Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993 onwards, 1995 onwards, 1998)
