Mart's Cacao (Theobroma martii)

Cacao-cabeça-de-urubu Cacao silvestre

Silhouette: T. Michael Keesey / License

Theobroma martii: Neotropical Wild Cocoa Tree

Named in honor of the celebrated botanist Carl von Martius, Theobroma martii inhabits the dense understory of Neotropical rainforests. This small to medium-sized tree is native to the Amazonian regions of Brazil, Colombia, and Peru.

It adapts well to terra firme forests, which are non-flooded upland areas. The species contributes to the structural complexity of the forest understory and provides seasonal sustenance to local wildlife.

Taxonomy

∟ царство Plantae
∟ division Tracheophytes (Vascular Plants)
∟ subdivision Spermatophytes (Seed plants)
∟ Angiosperms
∟ mesangiosperms (Core angiosperms)
∟ eudicots
∟ Superrosids
∟ rosids
∟ malvids
∟ order Malvales
∟ family Malvaceae
∟ subfamily Byttnerioideae
∟ genus Theobroma (Cacao trees)
∟ species Theobroma martii (Mart's Cacao)

Morphology

The tree typically reaches a modest height of 5 to 10 meters, developing a compact, branching habit. Its leaves are large, coriaceous, and oblong or obovate-oblong in shape.

The underside of the leaves features prominent, raised reticulate veins that are covered in fine hairs. This distinct venation pattern is a key identifying feature of the species.

Dark red or purplish flowers bloom in small, dense clusters directly on the bark of branches or the trunk. The resulting ellipsoid fruits are covered with a brownish, velvety pubescence.

Flowering season

August to December

Jan

Feb

Mar

Apr

May

Jun

Jul

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Oct

Name

Dec

Applications

Local inhabitants occasionally consume the sweet pulp surrounding the seeds when foraging in the forest. The seeds are sometimes processed on a small scale to make traditional cocoa products.

Botanists study its physical characteristics and genetic profile to map the evolutionary pathways of the genus. Its resilience in non-flooded soils is of interest for agricultural research.

Interesting facts

The specific epithet martii pays tribute to Carl Friedrich Philipp von Martius, who documented thousands of Brazilian plants in the 19th century. His extensive collections laid the foundation for modern Amazonian botany.

In Brazil, the common name Cacao-cabeça-de-urubu translates to vulture-headed cocoa, likely referring to the dark, textured appearance of the mature fruit pods.

Geography of distribution

Brazil
Colombia
Peru

Sources

Plants of the World Online (POWO): Royal Botanic Gardens, Kew portal.
World Flora Online (WFO): A global resource for plant biodiversity.
Global Biodiversity Information Facility (GBIF): Global open-access biodiversity data.