Abstract
This first study of the whole genusAgathis makes use of recent local revisions of the New Caledonian and Australian species which are all maintained. The male cone is shown to have most of the taxonomically useful variation, and this confirms the findings of two partial revisions centred on Indonesian species. Thirteen species are recognized, two of which have two subspecies. New Caledonia has five, and Australia three, sympatric species. Otherwise the species are allopatric except for a few populations of central MalesianA. dammara within the range of west MalesianA. borneensis. One of these montane populations is the distinctiveA. dammara subsp.flavescens of Malaya, formerly a full species.
Two groups and three individually distinctive species can be recognized on microsporophyll characters. The larger, group B, comprizes eight species,A. australis (New Zealand),A. corbassonii, A. lanceolata andA. montana (New Caledonia),A. macrophylla (Melanesian islands and includingA. obtusa andA. vitiensis),A. atropurpurea (Australia),A. dammara (mainly central Malesia) andA. borneensis (west Malesia); both the last have long synonymies. The smaller species, group (A), comprizesA. microstachya (Australia) andA. labillardieri (west New Guinea and the Sepik basin). The individually distinctive species areA. moorei andA. ovata of New Caledonia andA. robusta of Australia with its new subspeciesnesophila, described here, of eastern New Guinea and New Britain.
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Whitmore, T.C. A monograph ofAgathis . Pl Syst Evol 135, 41–69 (1980). https://doi.org/10.1007/BF00983006
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DOI: https://doi.org/10.1007/BF00983006