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== Taxonomy and naming == == Taxonomy and naming ==
''Caladenia mesocera'' was first described in 2001 by ] and ] and the description was published in '']''.<ref name=APNI>{{cite web|title=Caladenia mesocera|url=https://id.biodiversity.org.au/instance/apni/574322|publisher=APNI|accessdate=21 February 2017}}</ref> The ] (''mesocera'') is derived from the ] words ''meso'' meaning "middle"<ref name="RWB">{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}}</ref>{{rp|520}} and ''keras'' meaning "horn"<ref name="RWB" />{{rp|422}} referring to the horn-like structures on the midpoint of the labellum.<ref name="Brown" /> ''Caladenia mesocera'' was first described in 2001 by ] and ] and the description was published in '']''.<ref name=APNI>{{cite web|title=Caladenia mesocera|url=https://id.biodiversity.org.au/instance/apni/574322|publisher=APNI|accessdate=21 February 2017}}</ref> The ] (''mesocera'') is derived from the ] words ''mesos'' meaning "middle"<ref name="RWB">{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}}</ref>{{rp|520}} and ''keras'' meaning "horn"<ref name="RWB" />{{rp|422}} referring to the horn-like structures on the midpoint of the labellum.<ref name="Brown" />


== Distribution and habitat == == Distribution and habitat ==

Revision as of 12:00, 12 July 2019

Narrow-lipped dragon orchid
Caladenia mesocera growing near Lake King
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species: C. mesocera
Binomial name
Caladenia mesocera
Hopper & A.P.Br.
Synonyms

Drakonorchis mesocera (Hopper & A.P.Br.) D.L.Jones & M.A.Clem.

Caladenia mesocera, commonly known as the narrow-lipped dragon orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and usually only one greenish-yellow and red flower with a relatively long, insect-like labellum. Its distribution is further inland than that of most other caladenias.

Caladenia mesocera side view

Description

Caladenia mesocera is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, 40–80 mm (2–3 in) long and 4–10 mm (0.2–0.4 in) wide. Usually only one greenish-yellow and red flower 30–40 mm (1–2 in) long and 20–30 mm (0.8–1 in) wide is borne on a stalk 80–250 mm (3–10 in) tall. The dorsal sepal is bent backwards, 20–30 mm (0.8–1 in) long and 2–3 mm (0.08–0.1 in) wide. The lateral sepals are 18–25 mm (0.7–1 in) long, 2.5–6 mm (0.1–0.2 in) wide and spread widely. The petals are 15–24 mm (0.6–0.9 in) long and about 2 mm (0.08 in) wide and downswept. The labellum is 10–15 mm (0.4–0.6 in) long and 3–7 mm (0.1–0.3 in) wide, insect-like and stiffly hinged. It is densely hairy, greenish-yellow and red with a "false head" 2–3 mm (0.08–0.1 in) across at its highest point and there is a horn-like gland 2 mm (0.08 in) long either side of the "head". Flowering occurs from August to early October.

Taxonomy and naming

Caladenia mesocera was first described in 2001 by Stephen Hopper and Andrew Phillip Brown and the description was published in Nuytsia. The specific epithet (mesocera) is derived from the Ancient Greek words mesos meaning "middle" and keras meaning "horn" referring to the horn-like structures on the midpoint of the labellum.

Distribution and habitat

The narrow-lipped dragon orchid occurs between Bonnie Rock and Lake Moore east of Wubin, in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Mallee and Yalgoo biogeographic regions where it grows near salt lakes and in other places that are moist in winter.

Conservation

Caladenia mesocera is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.

References

  1. ^ "Caladenia mesocera". APNI. Retrieved 21 February 2017.
  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. 99. ISBN 1877069124.
  3. ^ Brown, Andrew; Dundas, Pat; Dixon, Kingsley; Hopper, Stephen (2008). Orchids of Western Australia. Crawley, Western Australia: University of Western Australia Press. p. 141. ISBN 9780980296457.
  4. ^ Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 184. ISBN 9780646562322.
  5. ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  6. ^ "Caladenia mesocera". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
Taxon identifiers
Caladenia mesocera
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