Tolumnia

‘’’Tolumnia’’’ Rafinesque, is a genus in the family Orchidaceae. It was segregated from the mega-genus Oncidium by Guido Braem in 1986. The plants are small, usually epiphytic, with small or absent pseudobulbs completely covered by leaves, which are triangular or circular in cross section and overlap each other at base to resemble a fan (often termed “equitant”, which is something else.) The inflorescences arise between the leaf base and bear colorful, showy flowers. The labella are large, ornamented by variously shaped calli. The column bears prominent wings flanking the stigma.

The genus is restricted to the Greater Antilles, with one species extending to Florida and one into the Lesser Antilles.

Species

• Tolumnia acunae (M. A. Diaz) Nir
• Tolumnia bahamensis (Nash) Braem
• Tolumnia borinquensis Sauleda & Ragan
• Tolumnia calochila (Cogn.) Braem
• Tolumnia caymanensis (Moir) Braem
• Tolumnia compressicaulis (Withner) Braem
• Tolumnia gauntlettii (Withner & Jesup) Nir
• Tolumnia guianensis (Aubl.) Braem
• Tolumnia guibertiana (A.Rich.) Braem
• Tolumnia guttata (L.) Nir
• Tolumnia haitiensis (Leonard & Ames) Braem
• Tolumnia henekenii (Schomburgk ex Lindl.) Nir
• Tolumnia leiboldi (Rchb. f.) Braem
• Tolumnia lemoniana ssp. lemoniana Braem
• Tolumnia lemoniana ssp. guibertiana (A.Rich) Braem
• Tolumnia lucayana (Nash) Braem
• Tolumnia pulchella (Hook.) Rafinesque
• Tolumnia quadriloba (Schweinf.) Braem
• Tolumnia sylvestris (Lindl.) Braem
• Tolumnia tetrapetala (jacq.) Braem
• Tolumnia triquetra (Sw.) Nir
• Tolumnia tuerckheimii (Cogn.) Braem
• Tolumnia urophylla (Loddiges ex Lindl.) Braem
• Tolumnia usneoides (Lindl.) Braem
• Tolumnia variegata (Sw.) Braem
• Tolumnia velutina (Lindl.) Braem

|}

References

• Nir, M. Orchidaceae Antillanae, 94-97, 2000.