What is it about?
A new orchid species in Pleurothallis subsection Acroniae, is described and illustrated from Ecuador. Information concerning its distribution, habitat and phenology is provided.
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Why is it important?
The new taxon is named as P. inaudita and is compared with the most similar species, P. imitor, from which it differs by its amber flowers suffused with red-purple (vs. yellow), lanceolate dorsal sepal (vs. ovate), ensiform petals (vs. oblong-subfalcate), and an ovate-triangular lip with an oblate callus (vs. triangular- sagittate with an oblong callus). Furthermore, P. inaudita is compared with P. tryssa and other morphologically similar species, member of Pleurothallis subsection Macrophyllae-Fasciculatae, P. crucifera.
Perspectives
Some species belonging to Pleurothallis subsect. Macrophyllae-Fasciculatae, are morphologically similar to P. inaudita, but they are distinguished by their peduncles usually hidden within a spathaceous bract, shorter pedicels, petals not sigmoid, lip without basal margins projecting towards the column, and a shorter and broader column with a bilobed stigma.
Rodolfo Solano
Instituto Politecnico Nacional
Read the Original
This page is a summary of: Pleurothallis inaudita, an unnoticed new species in Pleurothallidinae (Orchidaceae) from southwestern Ecuador, Phytotaxa, October 2023, Magnolia Press,
DOI: 10.11646/phytotaxa.620.1.6.
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