Corybas iridescens
Corybas iridescens | |
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Corybas iridescens near Whanganui | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Orchidoideae |
Tribe: | Diurideae |
Genus: | Corybas |
Species: | C. iridescens
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Binomial name | |
Corybas iridescens | |
Synonyms[1] | |
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Corybas iridescens is a species of terrestrial orchid endemic to the New Zealand.[1] It has a solitary fleshy oval-shaped leaf and a single deep crimson flower, sometimes accompanied with green, with a tapering dorsal sepal.
Description
Corybas iridescens is a
C. iridescens is similar to C. macranthus but can be distinguished by its leaves, which are carried on short petioles and often spotted, and its broader dorsal sepal (C. macranthus has a very slender dorsal sepal), as well as its labellum, which has a prominent callus and is almost always uniformly deep crimson or nearly black and iridescent when wet. C. iridescens also flowers earlier than C. macranthus.[2][3]
Taxonomy
The type specimen of Corybas iridescens was collected in Ruatiti in a roadside bank at 240 m in 1992 by
In 2002,
Distribution and habitat
Corybas iridescens is endemic to the North Island, South Island, and Chatham Islands of New Zealand; at the time of its publication, it was only known from western-central North Island localities, including Taranaki and Whanganui. It grows in coastal to montane habitats in calcium-rich substrates such as those consisting of mudstone and siltstone (known locally as papa rock), as well as limestone; it also grows in basaltic substrates. It usually grows near seepages or on the banks of slow-flowing streams.[2][3]
Gallery
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Side viewing showing relative lengths of caudate dorsal sepal and labellum.
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Upper view showing oval dorsal sepal with caudate apex.
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Corybas iridescens in situ with caudate dorsal sepal.
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Corybas iridescens displaying clear iridescence and oval-shaped dorsal sepal .
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Corybas iridescens with oval dorsal sepal and slightly transparent labellum lower margin. Note the abrupt point on the labellum tip; refer to the taxobox image as well.
References
- ^ a b c "Corybas iridescens". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
- ^ ISSN 0028-825X.
- ^ a b c d e "Corybas iridescens". New Zealand Plant Conservation Network. Retrieved 2021-07-21.
- ^ "Corybas iridescens - Big Red Spider Orchid". www.nativeorchids.co.nz. Retrieved 2021-07-21.
- ^ Lehnebach, Carlos (2016). "New combinations and a replacement name for three New Zealand spider orchids (Corybas)" (PDF). The New Zealand Native Orchid Journal. 139: 4–5.
External links
Media related to Corybas iridescens at Wikimedia Commons