''Mariosousa usumacintensis'' is a plant species native to the Mexican State of

Tabasco Tabasco, officially the Free and Sovereign State of Tabasco, is one of the Political divisions of Mexico, 32 Federal Entities of Mexico. It is divided into Municipalities of Tabasco, 17 municipalities and its capital city is Villahermosa. It i ...

. It was named after the Río

Usumacinta The Usumacinta River (; named after the howler monkey) is a river in southeastern Mexico and northwestern Guatemala. It is formed by the junction of the Pasión River, which arises in the Sierra de Santa Cruz (in Guatemala) and the Salinas R ...

, near the location where the

type specimen In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to ancho ...

was collected. ''Mariosousa usumacintensis'' is a tree up to 15 m (50 feet) tall. Prickles are located at the bases of the petioles, each prickle with a large flat gland near the base.Lundell, Cyrus Longworth. 1940. Studies of tropical plants. Contributions from the University of Michigan Herbarium 4:3-32.
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References

{{Taxonbar, from=Q15533758 Flora of Tabasco usumacintensis