Corunastylis leptochila D.L.Jones

Austral. Orchid Research 82 (5): 51-53 (2017)

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: endangered (e); listed in Flora and Fauna Guarantee Act 1988

Flowering plants 5–10 cm tall. Leaf lamina 10–15 mm long, projecting through the basal flowers of the inflorescence and outwards from the peduncle. Inflorescence 8–15 mm long, densely crowded. Flowers 5–20, reddish brown to dark purplish, 4–5 mm across, nodding; perianth segments sharply pointed; dorsal sepal ovate, 2–2.5 mm long, c. 1.5 mm wide, margins entire; lateral sepals divergent, linear-lanceolate, 3.5–4.5 mm long, c. 1 mm wide, apex with a small white beady gland; petals ovate, c. 2.5 mm long and 1 mm wide, apex with a small white beady gland. Labellum narrow-elliptic to narrow-oblong, 2–2.2 mm long, 0.6–0.8 mm wide, margins entire; callus oblong, occupying most of the ventral surface and extending to the labellum apex. Column wings smooth or slightly scabrid. Flowers Nov.–Dec.

OtP, OtR. Critically endangered and extremely localized in Victoria where known only from a single location (and c. 6 plants) in the Otway Ranges in open forest near a swamp.

Similar in appearance to C. densa (as treated here), but that species has a wider labellum, favours subalpine habitats and flowers later.

Previously treated as C. nudiscapa, but that species is now regarded as endemic to south-eastern Tasmania (Jones 2017).

Source: Jones, D.L. (1994). Genoplesium. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne (as Genoplesium nudiscapum (Hook.f.) D.L.Jones & M.A.Clem.).
Updated by: Neville Walsh, 2017-11-03
 
References

Jones, D.L. (2017). Characterisation of Corunastylis nudiscapa, Corunastylis densa (Orchidaceae: Prasophyllinaee) and the description of a Corunastylis leptochila, a related, new species., Australian Orchid Review 82(5): 48-56.

Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Corunastylis
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Corunastylis leptochila in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Corunastylis leptochila in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Otway Plain present native
Otway Ranges present native