The State Herbarium of South Australia published two articles in Vol. 38 of its journal Swainsona today, 16 Sep. 2024.

Distribution of the order Oxalidales. Compiled from the Angiosperm Phylogeny Website.

(1) Y. Pillon, D. Craynb, S.J.R. Streiff & J.M. de Vos, A suprageneric classification of Oxalidales (200kb PDF).

Using the results of recently published thoroughly-samples phylogenies, the authors from Australia, France and Switzerland, publish a revised classification of the order Oxalidales, which contains the plant families Brunelliaceae, Cephalotaceae, Connaraceae, Cunoniaceae, Elaeocarpaceae (incl. the former Tremandraceae) and Oxalidaceae. Some of these families are well-represented in Australia. One new suborder, five new subfamilies, and three new tribes are described.

The new species Inoderma applanatum. Photo: J. Jarman.

(2) G. Kantvilas, Tasmanian additions to the genus Inoderma (Arthoniaceae) (3.2mb PDF).

The author from the Tasmanian Herbarium reviews the lichen genus Inoderma, which was split recently from Arthonia, and accepts two species for Australia: one described as new, the other an existing species that is transferred to Inoderma. In total, the genus now has seven species worldwide. A species of fungus that grows on Inoderma lichens is also reported: Chaenothecopsis brevipes.

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.

The State Herbarium of South Australia published two article on the genus Hibbertia in Vol. 38 of its journal Swainsona today,11 July 2024.

Hibbertia cunninghamii, flower (left) and amplexicaul leaf (right). Photo: T.A. Hammer.

T.A. Hammer & K.R. Thiele, Revision of the Western Australian Hibbertia cunninghamii species group (Dilleniaceae) (3.9mb PDF).

The authors review Hibbertia cunninghamii and four related species, H. amplexicaulis, H. nymphaea, H. perfoliata and H. porongurupensis, all endemic to south-western WA and are characterised by amplexicaul leaf bases. The circumscriptions of the species is clarified and a revised identification key published. All species are illustrated with colour photographs.

Hibbertia acutifolia flower. Photo: T.A.Hammer.

T.A. Hammer, New combinations in the Hibbertia vestita (Dilleniaceae) species group from New South Wales (15.4mb PDF).

The author presents evidence that two subspecies of Hibbertia from New South Wales are better treated at species level. He changes the names of Hibbertia ericifolia subsp. acutifolia to the species H. acutifolia, and H. florida subsp. angustinervis to H. angustinervis. A table outlining the differences is provided and detailed photographs of leaves and flowers show the morphologies of the species and how they differ from typical Hibbertia ericifolia and H. florida.

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.

The State Herbarium of South Australia published one article in Vol. 38 of its journal Swainsona today, 1 Mar. 2024.

P.C. Jobson, A new species of Senna (Fabaceae: Caesalpinioideae: Cassieae) from the Top End, Northern Territory (1.2mb PDF).

The author from the National Herbarium of New South Wales describes the new species Senna arcuata, which was previously known under the phrase name Senna sp. Pine Creek (P.Martensz 480). It occurs in the Top End region of the Northern Territory, in a broad arc from Maranboy to Pine Creek, and from Mary River and Kakadu National Parks to Ramingining in central Arnhemland.

Senna arcuata, a new species from the Northern Territory. Photo: K. Brennan.

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.

The State Herbarium of South Australia published two articles in Vol. 38 of its journal Swainsona today, 2 Feb. 2024.

(1) J.L. Dowe & P.S. Short, The Gullivers’ travels: Thomas Allen Gulliver (1848–1931), Benjamin John Gulliver (1851–1938) and Susannah Gulliver (1857–1938): their contribution to Australian natural history and horticulture (7.6mb PDF).

Isotoma gulliveri from northern Queensland, named by Ferdinand von Mueller after Thomas Gulliver. Photo: D. Albrecht.

The authors report on the history of the natural history collections of the Gulliver siblings, who were active in the late 1800s. After a short biography of the family, they discuss the different periods in their lives: Thomas and Benjamin Gulliver provided plant and animal specimens for Museums and Herbaria. Their sister Susannah collected plants at a more limited scale.

The main focus of the article is the plant collections from New South Wales, Tasmania, the Northern Territory and Queensland, which are now mainly found at the National Herbarium of Victoria (MEL) and the Royal Botanic Gardens, Kew (K), with lesser numbers at other institutions. Lectotypes are chosen for some names that were published from Gulliver collections.

(2) T.A. Hammer & R.W. Davis, Ptilotus ostentans (Amaranthaceae), a new species from Western Australia segregated from Ptilotus seminudus. (2.5mb PDF).

Ptilotus ostentans, newly described by Tim Hammer and Rob Davis. Photo: G. Krygsman.

A new species of Ptilotus from southern Western Australia is described. Distinguishing characters and photographs are provided to separate it from the related P. seminudus, which is now restricted to South Australia, Victoria and New South Wales.

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.