Genoplesium jonesii sp. nov., a new species of Prasophyllinae (Orchidaceae) from New South Wales

Matthew A M Renner; Andrew E. Orme; Kate Mauger; Acacia Jennings; Colin C. Bower

doi:10.7751/telopea21214

Authors

Matthew A M Renner National Herbarium of New South Wales https://orcid.org/0000-0003-2286-7257
Andrew E. Orme National Herbarium of New South Wales https://orcid.org/0000-0001-5883-8170
Kate Mauger Arcadis Australia Pacific
Acacia Jennings Arcadis Australia Pacific
Colin C. Bower https://orcid.org/0009-0007-6435-4480

DOI:

https://doi.org/10.7751/telopea21214

Keywords:

New Species, Orchids, Conservation, Systematics

Abstract

The Genoplesium sagittiferum (Rupp) D.L.Jones & M.A.Clem. complex includes several informally described entities, all of which have close morphological affinity with Genoplesium sagittiferum. Here we describe Genoplesium jonesii sp. nov. for one of these, which has been recognized previously as Genoplesium sp. aff. sagittiferum 1. Genoplesium jonesii differs from other species within the G. sagittiferum complex and sect. Pachychilum by its combination of long dorsal sepal, which at around 5.5-6.0 mm long is among the longest in the section, and the labellum callus extending to the labellum apex, where it forms a small mucro. Genoplesium jonesii is known from two locations in the Central Tablelands, near Wambool and Brayton, and may occur at additional sites between these two. We are pleased to be able to name this species for David L. Jones to acknowledge his significant contributions to our understanding of diversity in Australian orchids, and especially in Prasophyllinae.

References

Bower CC, Medd RW (2023) Orchids of Central Western NSW. Orange Field Naturalist and Conservation Society: Orange NSW.

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Jones DL, Clements MA, Sharma IS, Mackenzie AM, Molloy BPJ (2002) Nomenclatural notes arising from studies into the Tribe Diurideae (Orchidaceae). The Orchadian 13(10): 437–468. https://www.biodiversitylibrary.org/page/61852896#page/5/mode/1up

Renner MAM, Towle BJ, Weston PH (2022) Two new species of Genoplesium R.Br. sensu lato (Orchidaceae: Prasophyllinae) from the Central Coast of New South Wales. Telopea 25: 285–299. https://doi.org/10.7751/telopea15648