Calochilus stramenicola

{{Short description|Species of orchid}}

{{Use Australian English|date=July 2024}}

{{Italic title}}

{{Speciesbox

| name = Wandoo beard orchid

| image = Calochilus stramenicola.jpg

| image_caption = Calochilus stramenicola in Wandoo National Park

| genus = Calochilus

| species = stramenicola

| authority = D.L.Jones{{WCSP | 346309 | Calochilus stramenicola}}

| synonyms_ref =

| synonyms =

}}

Calochilus stramenicola, commonly known as the wandoo beard orchid, is a species of orchid endemic to Western Australia. It has a single smooth, erect leaf and up to seven dull greenish flowers with reddish brown or purplish stripes. The labellum has a purplish beard with a ridge between two "eye" spots.

Description

Calochilus stramenicola is a terrestrial, perennial, deciduous, herb with an underground tuber and a single smooth erect, linear to lance-shaped, dark green leaf, {{convert|80-200|mm|in|sigfig=1|abbr=on}} long and {{convert|3-5|mm|in|sigfig=1|abbr=on}} wide and which is fully developed when the first flower opens. Up to seven dull greenish flowers with reddish brown or purplish stripes are borne on a flowering stem {{convert|120-420|mm|in|sigfig=1|abbr=on}} tall. The dorsal sepal is {{convert|7-10|mm|in|sigfig=1|abbr=on}} long and {{convert|6-8|mm|in|sigfig=1|abbr=on}} wide and the lateral sepals are a similar length but narrower. The petals are {{convert|4-5|mm|in|sigfig=2|abbr=on}} long and {{convert|3-4|mm|in|sigfig=1|abbr=on}} wide. The labellum is flat, {{convert|12-17|mm|in|sigfig=1|abbr=on}} long and {{convert|6-8|mm|in|sigfig=1|abbr=on}} wide with short, reddish purple calli near its base. The middle section of the labellum has thin hairs up to {{convert|3|mm|in|sigfig=1|abbr=on}} long and the tip has a glandular "tail" {{convert|2-3|mm|in|sigfig=1|abbr=on}} long and about {{convert|1|mm|in|sigfig=1|abbr=on}} wide. The column has two dark coloured "eyes" joined by a ridge. Flowering occurs in September and October.{{cite book|last1=Jones|first1=David L.|title=A complete guide to native orchids of Australia including the island territories|date=2006|publisher=New Holland|location=Frenchs Forest, N.S.W.|isbn=1877069124|page =263}}{{cite book|last1=Brown|first1=Andrew|last2=Dixon|first2=Kingsley|last3=French|first3=Christopher|last4=Brockman|first4=Garry|title=Field guide to the orchids of Western Australia : the definitive guide to the native orchids of Western Australia|date=2013|publisher=Simon Nevill Publications|isbn=9780980348149|page=166}}{{cite book|last1=Hoffman|first1=Noel|last2=Brown|first2=Andrew|title=Orchids of South-West Australia.|date=2011|publisher=Noel Hoffman|location=Gooseberry Hill|isbn=9780646562322|page=330|edition=3rd}}{{cite journal |last1=Jones |first1=David L. |title=New taxa of Australian Orchidaceae |journal=Australian Orchid Research |date=2006 |volume=5 |pages=70–71}}

Taxonomy and naming

Calochilus stramenicola was first formally described in 2006 by David Jones and the description was published in Australian Orchid Research.{{cite web|title=Calochilus stramenicola|url= https://id.biodiversity.org.au/instance/apni/616340|publisher=APNI|accessdate=24 June 2018}} The specific epithet (stramenicola) is derived from the Latin word stramen meaning "straw", "litter" or "any material for bedding down"{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}}{{rp|133}} with the suffix -cola meaning "dweller",{{rp|217}} referring to the preference of this species for growing in accumulations of litter.

Distribution and habitat

The wandoo beard orchid grows in thick accumulations of litter in wandoo woodland. It is found in a narrow band between Narrogin and Wannamal in the Avon Wheatbelt, Jarrah Forest and Swan Coastal Plain biogeographic regions.{{FloraBase|name=Calochilus stramenicola|id=33157}}

References