Grevillea parviflora subsp. supplicans (a low shrub) - endangered species listing

The Scientific Committee, established by the Threatened Species Conservation Act, has made a Final Determination to list Grevillea parviflora subsp. supplicans R.O. Makinson ms, a low shrub, as an ENDANGERED SPECIES on Part 1 of Schedule 1 of the Act. Listing of endangered species is provided for by Part 2 of the Act.

NSW Scientific Committee - final determination

The Scientific Committee has found that:

1. Grevillea parviflora subsp.  supplicans R.O. Makinson ms (Proteaceae) is a distinct taxon that will be recognised in the forthcoming Flora of Australia volume dealing with Grevillea. It corresponds to the 'Maroota-Berrilee form' of  Grevillea parviflora recognised by Olde and Marriott, 1995, The Grevillea Book Vol. 3, Kangaroo Press, Kenthurst NSW. Makinson (Flora of Australia in press) describes Grevillea parviflora subsp. supplicans as a low shrub (0.3-1m) tall. Major branches spreading; branchlets usually strongly secund with the leaves held skywards. Leaves 0.6-2(-3) mm wide. Stipe of ovary 0.5-0.6 mm long. Flowering is from August to November.

2. It occurs in heathy woodland associations in skeletal sandy soils over massive sandstones (Makinson in press).

3. It has a very restricted known distribution (approximately 8 x 10 km) and is confined to the NW of Sydney near Arcadia and the Maroota-Marramarra Creek area. It is known from only a few locations, one of which is in the southern portion of Marramarra National Park.

4. An estimate of the size of populations is not available, although where known, population sizes are small (often 20-30 plants).

5. The species is threatened by clearing, urban development, roadworks and inappropriate fire regimes.

6. In view of 3, 4 and 5 above the Scientific Committee is of the opinion that Grevillea parviflora subsp.  supplicans is likely to become extinct in nature in New South Wales unless the circumstances and factors threatening its survival or evolutionary development cease to operate.

Proposed Gazettal date: 24/12/99
Exhibition period: 24/12/99 - 4/2/00