Styphelia deserticola, flower of a new species, illustrated by H.K. Nguyen.

The State Herbarium of South Australia published three articles in Vol. 33 of its journal Swainsona online, today 12 June 2020.

(1)  M. Hislop, A taxonomic review of the Styphelia intertexta group (Ericaceae: Epacridoideae: Styphelieae). (2.8mb PDF).

Botanist Mike Hislop from the Western Australian Herbarium describes the four species belonging to the Styphelia intertexta group in this paper, two of which are new to science: S. deserticola and S. saxicola. Styphelia is a genus of shrubs endemic to Australia, in the family Ericaceae (formerly Epacridaceae).

(2) J. Kellermann, A preliminary survey of the leaf-indumentum in the Australian Pomaderreae (Rhamnaceae) using Scanning Electron Microscopy. (6.5mb PDF)

Stellate hairs on the lower surface of the leaves of Pomaderris apetala. Image: J. Kellermann.

For the first time, the hairs on the leaves of 33 species of Australian Rhamnaceae are examined and illustrated with SEM by State Herbarium botanist Jürgen Kellermann. The species all belong to the tribe Pomaderreae, which is endemic to Australia and New Zealand and characterised by the presence of stellate hairs (see H.J. Hewson, Plant indumentum; 1.5mb PDF). The most well-known genera of the tribe are Cryptandra, Pomaderris and Spyridium.

(3) T. Hammer, Taxonomic evaluation of Ptilotus manglesii (Amaranthaceae) and recognition of P. davisii for two phrase names in south-west Western Australia. (2.6mb PDF)

Western Australian botanist Tim Hammer describes a new species of Ptilotus that is closely related to P. manglesii. The two species are illustrated and the nomenclatural history and typification of the two species is discussed.

Ptilotus manglesii near Darkan, W.A. Photo: R. Davis.

To access content of all volumes of Swainsona and the Journal of the Adelaide Botanic Gardens since Vol. 1 (1976), please visit the journal’s web-site at flora.sa.gov.au/swainsona.