D. araucaroides D. balansae D. beccarii D. comosum D. cupressinum D. cornwalliana D. elatum D. ericoides D. gibbsiae D. gracilis D. guillauminii D. leptophyllum D. lycopodoides D. magnum D. medium D. nausoriensis D. nidulum D. novo-guineense D. pectinatum D. spathoides D. xanthandrum
Dacrydium is a genus of conifers belonging to the podocarp family, Podocarpaceae. Sixteen species of evergreendioecioustrees and shrubs are presently recognized. The genus was first described by Solander in 1786, and formerly included many more species, which were divided into sections A, B, and C by Florin in 1931. The revisions of de Laubenfels and Quinn (see references), reclassified the former section A as the new genus Falcatifolium, divided Section C into new genera Lepidothamnus, Lagarostrobos and Halocarpus, and retained Section B as genus Dacrydium.
de Laubenfels, David J. 1969. A revision of the Malesian and Pacific rainforest conifers, I. Podocarpaceae, in part. Journal of the Arnold Arboretum 50:274-314.
Quinn, C.J. 1982. Taxonomy of Dacrydium Sol. ex Lamb. emend. de Laub. (Podocarpaceae). Australian Journal of Botany 30: 311-320.
Its closest affinity is with Falcatifolium, as evidenced by the presence of resin ducts and hypodermis in the adult leaves, axial parenchyma and taxodioid cross-field pits in the secondary xylem, and 10 metacentric chromosomes in all members of both genera examined." Moreover:
Quinn (1982) applies similar reasoning to the large and heterogeneous genusDacrydium s.l., accepting Florin's (1931) division of the genus into Sections A, B and C and de Laubenfels' (1969) segregation of Section A as Falcatifolium, retaining Section B as Dacrydium sensu strictu and segregating Section C into Lepidothamnus, Lagarostrobos and Halocarpus.
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