Swainsona katjarra, a new species from Western Australia. Photo: K. Brown.
The State Herbarium of South Australia published three articles in Vol. 33 of its journal
Swainsona online, today 22 Dec. 2020: A paper on the genus Swainsona in Western Australia, and two papers on nomenclature and typification in the plant family Rhamnaceae.
This volume of the journal concludes with these articles; hardcopy of Vol. 33 will be printed within the next few months.
(1) J. Kellermann, Nomenclatural notes on the Alphitonia Group in Australia (Rhamnaceae). (3.4mb PDF).
The Alphitonia Group consists of four genera from Australia and the Malesian/Pacific region: Alphitonia (10-15 spp.), Emmenosperma (5 spp.), Granitites (1 sp.) and Jaffrea (2 spp.). The nomenclature and tyification of seven species are clarified in this paper.
(2) R.W. Davies & T.A. Hammer, A key to species of Swainsona (Fabaceae) in Western Australia and description of S. katjarra from the Little Sandy Desert region, Western Australia. (1.7mb PDF).
In this paper, a new dichotomous identification key to all 50 species and phrase names of the iconic genus Swainsona is presented. A new species from Katjarra (Carnarvon Range) in the LIttle Sandy Desert (Birriliburu Indigenous Protected Area) is also described. (A survey of the flora of Katjarra was published in 2014; 3.6mb PDF).
(3) J. Kellermann & F. Udovicic, A review of Colletieae and Discaria (Rhamnaceae) in Australia. (1.1mb PDF).
The authors describe the two species of Discaria in Australia and review the nomenclature and typification of D. pubescens; the type of the species is a rare and unusual example of a pre-1959 holotype. This species occurs in Tasmania, Victoria, N.S.W. and southern Queensland. The second species, D. nitida, has a more restricted distribution in the high country of Victoria and New South Wales. In areas where the distribution overlaps, sometimes hybrid plants can be found. The genus has also one species in New Zealand, D. toumatou, and three in extra-tropical South America: D. americana, D. articulata and D.chacaye.
Flowers of the Queensland tree Alphitonia petriei. Drawing by Anita Barley.
During the next year, 2021, the State Herbarium will publish two volumes of Swainsona:
- Vol. 34 will contain several historical monographs, the first of which was published recently.
- Vol. 35 will contain regular papers.
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, JSTOR or the Swainsona back-up site.