Open AccessStockwellia quadrifida (Myrtaceae), a new Australian genus and species in the eucalypt group
Author(s) -
CARR DENIS J.,
CARR S. G. M.,
HYLAND B. P. M.,
WILSON PETER G.,
LADIGES PAULINE Y.
Publication year - 2002
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1046/j.1095-8339.2002.00062.x
Subject(s) - biology , perianth , synapomorphy , myrtaceae , botany , genus , proteaceae , arboreal locomotion , rainforest , zoology , ecology , habitat , phylogenetics , clade , pollen , stamen , biochemistry , gene
A new genus and species in the eucalypt group of the Myrtaceae is described. Stockwellia quadrifida D.J. Carr, S.G.M. Carr & B.Hyland gen. et sp. nov. is a rainforest tree of restricted distribution on the Atherton Tableland, North Queensland, Australia. Molecular data suggest that it is the sister taxon to Eucalyptopsis and this is supported by morphological characters. The prolonged hypanthium and reduced perianth appear to be synapomorphies for these two genera and the circumscissile hypanthium a synapomorphy shared with Allosyncarpia . Stockwellia differs from Eucalyptopsis by the distinct, albeit reduced, perianth and the hypanthium splitting into four segments at anthesis. The relationship of these two genera indicates an historical biogeographical link between New Guinea and the Queensland wet tropics region. © 2002 The Linnean Society of London, Botanical Journal of the Linnean Society , 2002, 139 , 415–421.