Dacrydium is a genus of conifers belonging to the podocarp family Podocarpaceae. Sixteen species of evergreen dioecious trees 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.
| Dacrydium | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Araucariales |
| Family: | Podocarpaceae |
| Genus: | Dacrydium Lamb. |
| Type species | |
| Dacrydium cupressinum Solander ex Forster
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| Species | |
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See text. | |
| Synonyms | |
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Species
edit| Phylogeny of Dacrydium[1][2] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Image | Scientific name | Distribution |
|---|---|---|
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Dacrydium araucarioides | New Caledonia |
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Dacrydium balansae | New Caledonia |
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Dacrydium beccarii | Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands |
| Dacrydium comosum | Peninsular Malaysia | |
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Dacrydium cupressinum | New Zealand |
| Dacrydium cornwalliana | Indonesia, Papua New Guinea | |
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Dacrydium elatum | Cambodia, Indonesia, Laos, Malaysia, Thailand, Vietnam |
| Dacrydium ericoides | Malaysia | |
| Dacrydium gibbsiae | Borneo, Mount Kinabalu | |
| Dacrydium gracile | Malaysia | |
| Dacrydium guillauminii | New Caledonia | |
| Dacrydium leptophyllum | Indonesia | |
| Dacrydium lycopodioides | New Caledonia | |
| Dacrydium magnum | Indonesia, Papua New Guinea | |
| Dacrydium medium | Indonesia, Malaysia | |
| Dacrydium nausoriense | Fiji | |
| Dacrydium nidulum | Fiji, Indonesia, Papua New Guinea | |
| Dacrydium novo-guineense | Papua New Guinea | |
| Dacrydium pectinatum | Borneo, Hainan, Philippines, Sumatra | |
| Dacrydium spathoides | Indonesia | |
| Dacrydium xanthandrum | Indonesia, Malaysia, Papua New Guinea, Philippines |
Distribution
editThe natural range of Dacrydium extends from New Zealand, New Caledonia, Fiji and the Solomon Islands through Malesia (New Guinea, Indonesia, Malaysia and the Philippines), to Thailand and southern China.
References
edit- ^ Stull, Gregory W.; Qu, Xiao-Jian; Parins-Fukuchi, Caroline; Yang, Ying-Ying; Yang, Jun-Bo; Yang, Zhi-Yun; Hu, Yi; Ma, Hong; Soltis, Pamela S.; Soltis, Douglas E.; Li, De-Zhu; Smith, Stephen A.; Yi, Ting-Shuang; et al. (2021). "Gene duplications and phylogenomic conflict underlie major pulses of phenotypic evolution in gymnosperms". Nature Plants. 7 (8): 1015–1025. Bibcode:2021NatPl...7.1015S. bioRxiv 10.1101/2021.03.13.435279. doi:10.1038/s41477-021-00964-4. PMID 34282286. S2CID 232282918.
- ^ Stull, Gregory W.; et al. (2021). "main.dated.supermatrix.tree.T9.tre". Figshare. doi:10.6084/m9.figshare.14547354.v1.
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- de Laubenfels, David J. 1969. A revision of the Melanesia 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.