Revision of the Spyridium bifidum – S. halmaturinum complex (Rhamnaceae: Pomaderreae) from South Australia and Victoria Jürgen Kellermann1,2,3 & W.R. (Bill) Barker1,2 1 State Herbarium of South Australia, DENR Science Resource Centre, P.O. Box 2732, Kent Town, South Australia 5071; e-mail:
[email protected];
[email protected] 2 Australian Centre for Evolutionary Biology and Biodiversity (ACEBB), School of Earth & Environmental Science, The University of Adelaide, South Australia 5005 3 Former address: National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Birdwood Avenue, South Yarra, Victoria 3141 Abstract Introduction The Spyridium bifidum – Spyridium Fenzl. is one of the larger genera of Rhamnaceae in S. halmaturinum complex is revised; Australia. Comprising about 45 species, it is the third largest genus of the it consists of eight species and two Pomaderreae, a tribe endemic to Australia and New Zealand (Kellermann subspecies. Spyridium bifidum, et al. 2005; Kellermann & Udovicic 2008). The genus occurs in temperate S. coactilifolium and S. halmaturinum and semi-arid south-western and south-eastern Australia. Its main centre are maintained in revised circumscription. New combinations of distribution is in South Australia (currently 20 species), with a secondary and names are provided for S. bifidum centre in Western Australia (15 species). Only two species are shared subsp. wanillae, S. coalitum and between western and south-eastern Australia. There are eight species of S. scabridum. Spyridium stenophyllum Spyridium in Victoria, half shared with South Australia, six species in New is re-instated and transferred South Wales, one extending into south-eastern Queensland, and eight from Cryptandra to Spyridium.