Nematoceras
Encyclopedia
Nematoceras is a genus
of orchids (family
Orchidaceae), sometimes known as spider orchids, helmet orchids or spidery helmet-orchids, found mainly in New Zealand
and its subantarctic islands, with two species on Australia’s Macquarie Island
. The genus was absorbed by Corybas for a long period before being reinstated.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of orchids (family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Orchidaceae), sometimes known as spider orchids, helmet orchids or spidery helmet-orchids, found mainly in New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...
and its subantarctic islands, with two species on Australia’s Macquarie Island
Macquarie Island
Macquarie Island lies in the southwest corner of the Pacific Ocean, about half-way between New Zealand and Antarctica, at 54°30S, 158°57E. Politically, it has formed part of the Australian state of Tasmania since 1900 and became a Tasmanian State Reserve in 1978. In 1997 it became a world heritage...
. The genus was absorbed by Corybas for a long period before being reinstated.
Species
- Nematoceras acuminatum Dancing Spider Orchid (New Zealand)
- Nematoceras dienemumNematoceras dienemumNematoceras dienemum , also known as the Windswept Helmet-orchid, is one of two helmet orchids endemic to Australia’s subantarctic Macquarie Island, and the first orchid to be found there...
Windswept Helmet Orchid (Macquarie Island) - Nematoceras hypogaeum (New Zealand)
- Nematoceras iridescens Big Red Spider Orchid (New Zealand)
- Nematoceras longipetalum (New Zealand)
- Nematoceras macranthum Silver Back Orchid (New Zealand)
- Nematoceras orbiculatum (New Zealand)
- Nematoceras panduratum (New Zealand)
- Nematoceras papa (New Zealand)
- Nematoceras papillosum (New Zealand)
- Nematoceras rivulare (New Zealand)
- Nematoceras sulcatumNematoceras sulcatumNematoceras sulcatum, also known as the Grooved Helmet-orchid, is one of two helmet orchids endemic to Australia’s subantarctic Macquarie Island, and the second to be discovered. The specific epithet comes from the Latin sulcatus – “grooved”, with reference to the prominent groove in the labellum...
Grooved Helmet Orchid (Macquarie Island) - Nematoceras trilobum (New Zealand)