Small-flowered Snottygobble (Personia micranthera) Interim Recovery Plan 2003-2008

Interim Recovery Plan No. 145
Gillian Stack and Andrew Brown
Department of Conservation and Land Management, WA, 2003

4. Term of plan

This Interim Recovery Plan will operate from June 2003 to May 2008 but will remain in force until withdrawn or replaced. If the taxon is still ranked Critically Endangered after five years, the need to review this IRP or to replace it with a full Recovery Plan will be determined.

5. Acknowledgements

The following people have provided assistance and advice in the preparation of this Interim Recovery Plan:

Sarah Barrett    Rare Flora Officer, DCLM's Albany Work Centre
Anne Cochrane    Manager, DCLM's Threatened Flora Seed Centre
Amanda Shade    Horticulturalist, Botanic Garden and Parks Authority

We would like to thank the staff of the W.A. Herbarium for providing access to Herbarium databases and specimen information, and DCLM's Wildlife Branch for their assistance.

6. References

Barrett, S. (1999). Eastern Stirling Range Montane Heath and Thicket Community, Interim Recovery Plan, Department of Conservation and Land Management, Western Australia, unpublished report.

Barrett, S. (1996). Proposed Addition or Deletion or Change to the Schedule of Declared Rare Flora - Persoonia micranthera, Conservation and Land Management File 1998F000189, page 33, unpublished.

Brown, A., Thomson-Dans, C. and Marchant, N. (Eds). (1998) Western Australia's Threatened Flora. Department of Conservation and Land Management, Western Australia.

Robinson, C. J. and Coates, D. J. (1995). Declared Rare and Poorly Known Flora in the Albany District. Western Australian Wildlife Management Program No. 20. Department of Conservation and Land Management, Western Australia.

Stack, G. and Brown, A. (2002). Giant Andersonia (Andersonia axilliflora) Interim Recovery Plan. Department of Conservation and Land Management, Western Australia, in press.

DCLM (1999). Stirling Range and Porongurup National Parks: Management Plan. Department of Conservation and Land Management, Western Australia.

DCLM (1998) Western Australian Herbarium FloraBase - Information on the Western Australian Flora. Department of Conservation and Land Management, Western Australia. http://www.calm.wa.gov.au/science/

DCLM (1995) Policy Statement No. 29 Translocation of Threatened Flora and Fauna. Department of Conservation and Land Management, Western Australia.

DCLM (1994) Policy Statement No. 50 Setting Priorities for the Conservation of Western Australia's Threatened Flora and Fauna. Department of Conservation and Land Management, Western Australia.

DCLM (1992) Policy Statement No. 44 Wildlife Management Programs. Department of Conservation and Land Management, Western Australia.

DCLM (1992). Policy Statement No. 9 Conservation of Threatened Flora in the Wild. Department of Conservation and Land Management, Western Australia.

Weston, P. H. (1994). The Western Australian Species of subtribe Persooniiae (Proteaceae: Persooniodeae: Persoonieae), Telopea, 6(1): 116-117.

World Conservation Union (2000) IUCN red list categories prepared by the IUCN Species Survival Commission, as approved by the 51st meeting of the IUCN Council. Gland, Switzerland.

8. Taxonomic description

Weston (1994)

Persoonia micranthera is a decumbent to prostrate shrub, usually branching from near base, 0.1-0.4 m high, killed by fire ( Keighery 1993); underground parts not known. Bark thin. Hairs of medium length, appressed to patent, grayish to pale brown. Branchlets sometimes angular when immature but becoming terete when mature, moderately hairy when young but glabrescent after 1 year. Leaves alternate or opposite, spathulate or obovate or oblanceolate, symmetrical to slightly asymmetric, often twisted at the base so that most of laminae are held in ± horizontal plane, flat but with slightly recurved margins when dried, obtuse mucronate acute or acuminate, not pungent, (2-)4-8 cm long, )3.5-(8-30 mm wide, often in clusters of 2-5 at end of each season's growth which are separated by long leafless sections of stem, often crowned with cluster, patent to erect, not usually curved in dorsiventral plane, soft and flexible, not glaucus, concolorous, sparsely to moderately hairy when immature, glabrescent when mature; venation brochidodromous; mid-vein evident to prominent on both surfaces; marginal veins prominent; other veins evident; epidermis smooth. Scale leaves triangular to narrowly triangular, acute to acuminate, 2-8 mm long, 0.4-1.5 mm wide.

Inflorescences terminal or rarely subterminal, anauxotelic, pantotomic, (1-)4-15 flowered; rachis (0-) 1-6 cm long. Flowers subtended by scale leaves, regular, mostly held upright to subupright. Pedicles 2.5 -8 mm long longer at base of inflorescence than at tip, moderately hairy. Tepals ± narrowly-oblong to ± oblanceolate, truncate at base, slightly constricted near base, acute, 10.5 - 14 mm long, 1.7 - 2 mm wide, yellow, moderately hairy on outside, glabrous in inside except for marginal rows of papillae on proximal ½; lateral flaps absent. Filaments adnate to tepals, 6.5-9 mm long, 3/5-7/10 as long as tepals. Anthers sublatrorse, ± straight, free; connective narrower than loculi; loculi glabrous, 1.8-3 mm long; appendage ± globular to ± oblong, 0.2-0.3 mm long, about 1/10 as long as loculi; colour, position of anthers with respect to one another not known.

Gynoecium slightly shorter than stamens, exserted, 7.5-11 mm long, glabrous; ovary basally constricted into distinct stipe, conspicuously thicker than base of style; style slightly curved at base but otherwise ± straight, not ridged, capitate bit otherwise ± constant in thickness from base to tip; abscission zone basal; ovules 2. Hypogynous glands 4, equal. Drupe ellipsoid to ovoid and compressed, smooth; long axis in line with or slightly oblique to stipe, in line with style; pyrene ellipsoid to ovoid and compressed, 6-6.5 mm long, 3-3.3 mm wide, smooth; seed 1; embryo straight; cotyledons 3.

Robinson and Coates (1995)

Persoonia micranthera is a decumbent shrub, branching from the base to 0.1-0.4 m tall, without well developed bark and is thought not to be lignotuberous. The branches become terete and glabrous with age. The spreading to erect leaves are alternate or opposite, often in seasonal growth clusters of 2-5 leaves separated by long leafless internodes. The leaf lamina is flat, held horizontally, spathulate to obovate, acuminate to obtuse mucronate, 4-8 cm long and 3 cm broad, soft and flexible, glabrous (when mature) with a prominent midvein. The inflorescence is terminal, 4-15 flowers on a 1-6 cm rachis. The flowers are regular, upright on 2.5-8 mm pedicels subtended by scale leaves. The acute narrow (1.7-2 mm wide) oblong 14 mm long tepals are yellow, moderately hairy outside and glabrous inside except for rows of papillae on the proximal half. The 7.5-11 mm glabrous gynoecium are slightly lower than the anthers and are exserted. The fruit is an ellipsoid smooth drupe 6-6.5 mm long and 3 mm wide. This is a distinctive species, easily distinguished by its long staminal filaments which are 7/10 as long as the tepals.

Addendum

Small-flowered Snottygobble (Personia micranthera) Interim Recovery Plan 2003-2008

In adopting this plan under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act), the Minister for the Environment and Heritage has approved the following modifications.

Critical Habitat
The plan identifies a broad area as critical habitat, including buffer zones of a set distance around known populations. The Threatened Species Scientific Committee does not necessarily believe that such an area qualifies as habitat critical to the survival of the species, as defined in the EPBC Act.

Recovery Criteria For the purposes of reviewing this recovery plan under the EPBC Act, the Recovery Criteria are amended to read as follows:

Criteria for success: The number of individuals within populations and/or the number of populations have increased by 10% or more over the period of the plan's adoption under the EPBC Act.
Criteria for failure: The number of individuals within populations and/or the number of populations have decreased by 10% or more over the period of the plan's adoption under the EPBC Act.