Diodonopsis (dye-oh-doh-NOP-sis) is composed of three species previously recognized at the section level of Masdevallia section Pygmaeae. They are characterized by small caespitose plants with short ramicauls, slender peduncles and soft, burr-like ovaries. The flowers of two species are solitary and the third is successively flowered. The sepals have tails and form a short tube or cup. When the final DNA analysis is done, M. pygmaea may or may not be in this genus.

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