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Microchilus culuenensis (Orchidaceae, Goodyerinae): a new species from Southearn Brazilian Amazon

2024; Q15088586; Volume: 644; Issue: 1 Linguagem: Inglês

10.11646/phytotaxa.644.1.8

1179-3163

Mathias Erich Engels, Eric de Camargo Smidt,

Ecology and Vegetation Dynamics Studies

During the UFMT Herbarium collection study, an undescribed species of Goodyerinae (Orchidaceae) was found on the banks of the Culuene River, a tributary of the Alto Xingu basin, state of Mato Grosso, Southern Brazilian Amazon. We described and illustrated Microchilus culuenensis, a species morphologically related to M. amazonicus, M. juruenensis and M. stigmatopterus, which can be differentiated from them by a set of characteristics: narrow-lanceolate leaves, lip with an oblong callus and truncated at the mesochile, presence of a rounded, bilobed callus in the center of the epichile, and a rounded apex of the lobes of epichile. The new species is classified as Data Deficient (DD) regarding the conservation status.