Drepananthus novoguineensis I.M.Turner & Utteridge 2017
Creators
- 1. Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AE, UK. & Corresponding author: i. turner @ kew. org
- 2. Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AE, UK. & Email: t. utteridge @ kew. org
Description
Drepananthus novoguineensis (Baker f.) I.M.Turner & Utteridge comb. nov.
urn:lsid:ipni.org:names:77164170-1
Basionym: Cyathocalyx novoguineensis Baker f., Journal of Botany 61 (Suppl.): 3 (Baker 1923). – Type: New Guinea, Sogeri Region, [Mt Gawada], 1885–1886, H. O. Forbes 544 (holo-: BM000546903; iso-: BRI-AQ0210735, FI007547, K, L0037905, SING0026209).
Cyathocalyx obtusifolius var. angustifolius Baker f., Journal of Botany 61 (Suppl.): 3 (Baker 1923). – Type: New Guinea, Sogeri Region, 1885–1886, H. O. Forbes 661 (holo-: BM000608827; iso-: MEL578174).
Regional distributionSolomon Archipelago (BSIP 5260, BSIP 16178, BSIP 3642, BSIP 15156).
NotesIn their paper confirming the phylogenetic separation of Drepananthus from Cyathocalyx, Surveswaran et al. (2010) considered Cyathocalyx novoguineensis as a synonym of Drepananthus petiolatus (Diels) Survesw. & R.M.K.Saunders. In our opinion these two taxa can be distinguished. The petal blades are generally much shorter in Drepananthus petiolatus (to 1 cm long compared to at least 6 cm in Cyathocalyx novoguineensis from New Guinea), more strictly linear rather than long tapering, and glabrescent vs densely pale hairy. Drepananthus petiolatus appears to be a highland species and Cyathocalyx novoguineensis a lowland one, though there may be some overlap in altitudinal ranges. However, there is no indication that the different morphologies are simply an effect of altitude. We therefore make a new combination here for Cyathocalyx novoguineensis in Drepananthus.
There is a species of Drepananthus widely collected in the Melanesian Solomon Islands. Morphologically the specimens are similar to Drepananthus novoguineensis (Baker f.) I.M.Turner & Utteridge comb. nov. The specimens seen have shorter petal blades than the New Guinea material (to 2 cm long vs up to 6 cm) and they are less densely hairy, but otherwise flower and fruit forms are congruous. We therefore include this Solomon Islands’ material in Drepananthus novoguineensis (Baker f.) I.M.Turner & Utteridge comb. nov.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Annonaceae
- Genus
- Drepananthus
- Kingdom
- Plantae
- Order
- Magnoliales
- Phylum
- Tracheophyta
- Scientific name authorship
- I.M.Turner & Utteridge
- Species
- novoguineensis
- Taxon rank
- species
- Taxonomic concept label
- Drepananthus novoguineensis I.M.Turner, 2017 sec. Turner & Utteridge, 2017
References
- Baker E. G. 1923. Dicotyledons. Polypetalae. Journal of Botany 61 (Suppl.): 2 - 16.
- Surveswaran S., Wang R. J., Su Y. C. F. & Saunders R. M. K. 2010. Generic delimitation and historical biogeography in the early-divergent ' ambavioid' lineage of Annonaceae: Cananga, Cyathocalyx and Drepananthus. Taxon 59: 1721 - 1734.