Species: C. trilobus
Binomial name: Corybas trilobus
Synonym: Nematoceras trilobum
Corybas iridescens is a species of orchid belonging to the subtribe Acianthinae from New Zealand, Chatham Island and Antipodes Islands. The plants are small and delicate with annual flowers that discretely hidden amidst the foliage, It is dry during the dry season or warm and re-sprout during times of warmer climate, which varies depending on the climate of the region where they are. This species has few roots, replaced by pairs of small tubercles ovoid, stems short and erect with a single sheet basal, herbaceous, flat and soft, the inflorescence is small and short with only a small flower colour with slight terminal, resupinate, segments of flowers are free, the sepal dorsal much larger than the other segments, tumbled, hiding most of the flower, the lateral sepals and petals are similar but the latter, smaller, the lip is much smaller than the remaining segments, simple, with margins curved inwards; the column shows merged wings along the body is delicate, thicker at the base, without standing with anther containing four terminal persistent polynyas uneven colour cream, fixed directly on viscidium. By positioning the tilted dorsal sepal, which hides the interior of a flower, little is known about the mechanism of pollination of this species.
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