Large-flowered Nervilia (Nervilia grandiflora)
This orchid is only known from the type specimen, which was collected in the year 1910 on the island of Sava’i, Samoa.
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The species is most closely related to the Broad-bearded Nervilia (Nervilia platychila Schltr.), which occurs in Melanesia, including New Caledonia, and also on the Fijian Islands, and differs from it mainly by its glabrous leaves.
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References:
[1] Phillip Cribb; W. Arthur Whistler: Orchids of Samoa. Kew Publishing 1996
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edited: 23.03.2018