Nervilia peltata

Nervilia peltata, commonly known as the grey shield orchid,[2] is a small terrestrial orchid found in northern Australia. It has up to three pale green, short-lived flowers with a white labellum and a more or less circular leaf which emerges at the base of the flowering stem after flowering.

Grey shield orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Genus: Nervilia
Species:
N. peltata
Binomial name
Nervilia peltata
B.Gray & D.L.Jones[1]

Description

Nervilia peltata is a terrestrial, perennial, deciduous, sympodial herb which grows in colonies with only a few individuals producing flowers in any one year. A single pale green flower 20–28 mm (0.8–1 in) long and wide is borne on an erect, fleshy flowering stem 100–200 mm (4–8 in) tall. The sepals are 18–23 mm (0.7–0.9 in) long and about 3 mm (0.1 in) wide and the petals are similar but slightly shorter and narrower. The labellum is white with a wide fringe and small calli. The flower only lasts for about one day, following which a single leaf develops, including on those plants that did not flower. The leaf is pale greyish green, more or less circular with a central stalk, 20–45 mm (0.8–2 in) in diameter with irregular edges. Flowering occurs between December and February.[2][3]

Taxonomy and naming

Nervilia peltata was first formally described in 1994 by Bruce Gray and David Jones and the description was published in Austrobaileya.[4] The specific epithet (peltata) is a Latin word meaning "shield-shaped" or "armed with a shield".[5]

Distribution and habitat

The grey shield orchid occurs on the Cape York Peninsula as far south as Hinchinbrook Island and on some of the islands in the Torres Strait. It is also found in the northern part of the Northern Territory. The usual habitat is forest or woodland where the orchid grows with grasses, often in large open colonies.[2]

References
  1. "Nervilia peltata". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 281. ISBN 978-1877069123.
  3. Gray, Bruce; Jones, David L. (1994). "Nervilia peltata (Orchidaceae), a new species from north-eastern Queensland and the Northern Territory". Austrobaileya. 4 (2): 195–198. JSTOR 41738852.
  4. "Nervilia peltata". APNI. Retrieved 16 August 2018.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 705.
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