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Systematic studies in the eucalypts. 11 — 
New taxa and combinations in Eucalyptus 
Section Dumaria (Myrtaceae) 
K.D. Hill, L.A.S. Johnsont & D.F. Blaxell 
Abstract 
Hill, K.D., Johnson, L.A.S. & Blaxell, D.F. (National Herbarium of Neiv South Wales, 
Royal Botanic Cardens, Sydney, NSW 2000 Australia) 2001. Systematic studies in the eucalypts. 11. Nezu 
taxa and combinations in Eucalyptus Section Dumaria (Myrtaceae). Telopea 9(2): 259-318. New taxa and 
combinations in Eucalyptus Section Dumaria from Western Australia and South Australia are 
presented (some species occur in adjacent regions of Victoria and New South Wales). New species 
described are Eucalyptus capitanea, E. grossifolia, E. singularis, E. laevis, E. pleurocorys, 
E. trachybasis, E. planipes, E. spreta, E. valens, E. wubinensis, E. assimilans, E. infracorticata, 
E. redimiculifera and E. paralimnetica. New subspecies are recognised in E. costata F. Muell. 
(subsp. murrayana), E. leptocalyx Blakely (subsp. petilipes), E. scyphocalyx (F. Muell. ex Benth.) 
Maiden & Blakely (subsp. triadica), E. fraseri (Brooker) Brooker (subsp. melanobasis) and 
E. obtusiflora DC. (subsp. cowcowensis). A new combination is made for E. obtusiflora subsp. 
dongarraensis (formerly £. dongarraensis Maiden & Blakely), and circumscription and typification of 
£. incrassata and E. angulosa are discussed. Multiple entry tables are provided as an aid to identification. 
Introduction 
New taxa described here are from section Dumaria (as defined by Pryor and Johnson, 
1971, with amendments discussed below), occurring mainly in Western Australia and 
South Australia. All are taxa defined during the studies led by the late L.A.S. Johnson 
as a part of an evaluation of the classification and relationships of the eucalypts. 
Several of these taxa are treated as undescribed species or subspecies in the semi- 
popular account of south-western taxa by Brooker and Kleinig (1990). The new taxa 
discussed both here and by Brooker and Kleinig were delineated by us during a 
comprehensive revisionary study of the eucalypts, and were freely discussed with Ian 
Brooker in order to allow their treatment in Brooker and Kleinig. A number of other 
new species in this section have also been formally described by other workers 
(e.g. Brooker & Hopper, 1991, 1993, Nicolle 1997), rendering keys presented by 
Chippendale (1988) obsolete. Multiple entry tables are provided as an aid to identification 
and as a supplement to keys presented by Brooker and Kleinig (1990). 
Terminology and nomenclature are as in previous papers in this series (see Hill & 
Johnson 1994,1995). Rare or threatened species are allocated conservation status codes 
according to the system of Briggs and Leigh (1996). 
We are acquainted with all the new and related taxa in the field, and all new taxa have 
been interpreted on the basis of both herbarium collections and field observations of 
populations in situ. 
t Deceased 1 August 1997. 
