(pronounced: eye-on-OP-sis)


Maxillarieae subtribe Oncidiinae.

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Epiphytes with or without minute pseudobulbs. Leaves coriaceous, with foliaceous bracts subequal to or larger than the leaves, subtending the pseudobulbs. Inflorescences slender racemes or panicles, variously short to elongate-scapose, lateral from the axils of the foliaceous bracts. Flowers campanulate, small. Sepals and petals subsimilar, the lateral sepals free or fused at the base. Lip clawed, flabelliform, emarginate, apiculate, with a pair of keeled calli. Column short, erect; pollinia 2, on an elongate stipe.


Two species, widely distributed in the neotropics from the USA (Florida) to Bolivia.

Care and Culture Card

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Menezes, L. C. 1993. Ionopsis utricularioides var. virginalis. Schlechteriana 4(1-2):49-51.

Montalvo, A. M. and J. D. Ackerman 1987. Limitation to fruit production in Ionopsis utricularioides (Orchidaceae). Biotropica 19:24-31.

Pupulin, F. 1998. A new species of Ionopsis (Orchidaceae: Oncidiinae) and a reconsideration of the genus Konantzia. Harvard Pap. Bot. 3(2):225-229.