Corsia viridopurpurea
| Corsia viridopurpurea | ||||||||||||
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| Scientific name | ||||||||||||
| Corsia viridopurpurea | ||||||||||||
| P.Royen |
Corsia viridopurpurea is a loose leaf green plant type from the family of Corsiaceae .
features
Like all species of the genus also has Corsia viridopurpurea the photosynthesis abandoned and therefore forms no chlorophyll more. Instead, it lives myco-heterotrophically on a mycorrhizal fungus that lives in symbiosis with another plant.
Corsia viridopurpurea is a perennial plant that only grows above ground during flowering. From the short, creeping rhizome , up to 13 centimeters long, cylindrical and finely grooved, unbranched and upright stems sprout. The pale red, elongated-round egg-shaped to inverted-egg-shaped, up to 20 millimeters long and 6 millimeters wide, pointed leaves are reduced to sheathed, five-veined scaly leaves .
The upright individual flowers are terminal and stand on flower stalks that are around 35 millimeters long. Of the six petals (three tepals each in two petal circles ) five are ovate to elliptical-ovoid or oblong-round, spear-shaped at the base, 10 to 12 millimeters long and around 3 millimeters wide, three-veined and hairless. The top sixth, the so-called labellum , is dark red with a green base, broadly elliptical and greatly enlarged with a length of 18 to 20 millimeters. It initially surrounds the flower bud and, after opening, covers the other flower organs protectively. On approach, the Labellum is rounded over a weak, outwardly from a permeated with two rib web from callus tissue on gynostemium grown ( "pinned"), there is a central rib traversed and on each side by 6 parallel branched nerves.
The gynostemium is 0.5 millimeters long, the free portion of the stamens reaches 1.5 millimeters in length, the anthers are 1 to 1.5 millimeters long. The stylus is around 20 millimeters long.
Distribution area
Corsia viridopurpurea has only been picked up once in New Guinea on Mount Piora .
Systematics
Corsia viridopurpurea was first described by Pieter van Royen in 1972 and belongs to the Unguiculatis section . It is close to Corsia acuminata , Corsia torricellensis and Corsia unguiculata , but differs from them in that the petals are spike-shaped at the base.
literature
- P. Van Royen: Sertulum Papuanum 17. Corsiaceae of New Guinea and surrounding areas in: Webbia 27: 233-234, 1972.