Dodson’s Dicliptera was described in 1977, it is known from just four collections that were made in a private forest of the Río Palenque Biological Station in the Los Rios Province of Ecuador.
The species was apparently last found in 1986 or maybe sometimes later, but since it hasn’t been found during any recent search it is now considered possibly extinct.
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edited: 13.11.2021
Quito Dicliptera (Dicliptera quitensis)
This terrestrial, herbaceous plant is known only from the type material which was collected in 1933 on a river bank in the vicinity of the city of Quito, the capital of Ecuador.
The species was never found again since and is almost for certain extinct.
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edited: 19.06.2020
Clavate Dicliptera (Dicliptera clavata)
The genus Dicliptera contains about 300 species, two of which occurred on the Society Islands in French Polynesia
One of these two species, Forster’s Dicliptera (Dicliptera forsteriana Nees) (see depiction below) is more widely distributed along the Society Islands and apparently can still be found today on the islands of Bora Bora, Huahine, Ra’iatea, and Taha’a, while it appears to be extinct on Tahiti and Mo’orea. It apparently did furthermore occur on the island of Rapa in the Austral Islands.
The second species, the Clavate Dicliptera, was restricted to the island of Tahiti and is considered globally extinct.
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edited: 19.06.2020