Tainia trinervis
{{Short description|Species of orchid}}
{{Speciesbox
| name = Ribbon orchid
| image =
| image_caption =
| genus = Tainia
| species = trinervis
| authority = (Blume) Rchb.f.{{WCSP | 201350 | Tainia trinervis }}
| synonyms =
- Mitopetalum trinerve Blume
- Dendrobium paucifolium Reinw. ex Blume
- Mitopetalum plicatum Blume
- Mitopetalum parviflorum Blume
- Mitopetalum rubescens Blume
- Mitopetalum trinervium Blume
- Tainia parviflora (Blume) Schltr.
}}
Tainia trinervis, commonly known as the ribbon orchid,{{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 =364}} is an evergreen, terrestrial plant with crowded pseudobulbs, each with a single smooth, shiny leaf and up to fourteen greenish to yellowish flowers with red or purplish stripes in the middle. It is found in tropical Southeast Asia, New Guinea and northern Australia.
Description
Tainia trinervis is an evergreen, terrestrial herb that has thin, crowded, dark green pseudobulbs. Each pseudobulb is {{convert|40-70|mm|in|sigfig=1|abbr=on}} long and {{convert|7-10|mm|in|sigfig=1|abbr=on}} wide and has a single smooth, shiny, dark green leaf {{convert|100-160|mm|in|sigfig=1|abbr=on}} long and {{convert|40-60|mm|in|sigfig=2|abbr=on}} wide on a stalk {{convert|30-50|mm|in|sigfig=1|abbr=on}} long. Between three and fourteen greenish white to yellowish resupinate flowers {{convert|13-18|mm|in|sigfig=1|abbr=on}} long and {{convert|20-25|mm|in|sigfig=1|abbr=on}} wide are well-spaced along a thin flowering stem {{convert|200-300|mm|in|sigfig=1|abbr=on}} tall. The sepals are {{convert|9-12|mm|in|sigfig=1|abbr=on}} long and {{convert|3-4|mm|in|sigfig=2|abbr=on}} wide with their tips curved back. The petals are a similar size to the sepals but project forwards. The labellum is {{convert|7-8|mm|in|sigfig=2|abbr=on}} long and {{convert|5-6|mm|in|sigfig=2|abbr=on}} wide and has three lobes. The middle lobe has three purple ridges and a curved tip. The side lobes curve upwards. Flowering occurs from September to November.<{{cite web |author1=D.L.Jones |author2=T.Hopley |author3=S.M.Duffy |author1-link=David L. Jones (botanist) |year=2010 |access-date=31 May 2021 |url=http://www.canbr.gov.au/cpbr/cd-keys/RFKOrchids/key/rfkorchids/Media/Html/Tainia_trinervis.htm |title=Factsheet - Tainia trinervis |website=Australian Tropical Rainforest Orchids |publisher=Centre for Australian National Biodiversity Research (CANBR), Australian Government}}{{cite web |title=Taenia trinervis|url=http://www.orchidsnewguinea.com/orchid-information/species/speciescode/1035 |publisher=Orchids of New Guinea |access-date=4 November 2018}}
Taxonomy and naming
The ribbon orchid was first formally described in 1856 by Carl Ludwig Blume who gave it the name Mitopetalum trinerve and published the description in Museum Botanicum Lugduno-Batavum sive stirpium Exoticarum, Novarum vel Minus Cognitarum ex Vivis aut Siccis Brevis Expositio et Descriptio.{{cite web|title=Mitopetalum trinerve|url= https://id.biodiversity.org.au/instance/apni/552631|publisher=APNI|access-date=4 November 2018}}{{cite book |last1=Blume |first1=Carl Ludwig |title=Museum Botanicum Lugduno-Batavum sive stirpium Exoticarum, Novarum vel Minus Cognitarum ex Vivis aut Siccis Brevis Expositio et Descriptio|date=1856 |location=Leiden |page=185 |url=https://www.biodiversitylibrary.org/item/6964#page/186/mode/1up|access-date=4 November 2018}} In 1857, Heinrich Gustav Reichenbach changed the name to Tainia trinervis.{{cite web|title=Tainia trinervis|url= https://id.biodiversity.org.au/instance/apni/552622|publisher=APNI|access-date=4 November 2018}} The specific epithet (trinervis) is derived from the Latin prefix tri- meaning three {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}}{{rp|798}} and nervus meaning "vein".{{rp|555}}
Distribution and habitat
Tainia trinervis grows in rainforest close to streams in tropical far north Queensland, New Guinea and the Maluku Islands.
References
{{Reflist}}
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Category:Plants described in 1856