Cacao Tree
Theobroma cacao
Theobroma cacao, commonly known as the cacao or cocoa tree, is a tropical evergreen species …
Smooth-fruited Cacao (Theobroma leiocarpum)
Smooth-skinned cacao
Silhouette: T. Michael Keesey
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Theobroma leiocarpum: Smooth-Fruited Cacao Species
Occurring naturally in the tropical rainforests of South America, Theobroma leiocarpum is closely related to the widely cultivated cacao. This species is distinguished by its unique smooth-skinned pods that differ from the ribbed fruits of its famous cousin. It remains a key species in studying the evolutionary history of the genus.
Its natural habitat consists of warm, humid lowlands where it grows under the shelter of taller forest trees. It adapts well to deep shade and rich, moist soils near riverbeds.
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 leiocarpum (Smooth-fruited Cacao)
Morphology
This small tree grows up to 8 meters high and develops a branching pattern characteristic of the Sterculiaceae subfamily. The leaves are large, simple, and oblong, with smooth margins and a dark green color. They hang downwards to shed heavy tropical rainfall efficiently.
The flowers are cauliflorous, emerging directly from the bark of the trunk and older branches. The fruits are oblong, smooth-surfaced pods that turn yellow or reddish-orange when ripe, housing seeds embedded in a sweet mucilaginous pulp.
Applications
Local populations harvest the pods to extract the sweet, aromatic pulp, which is consumed fresh or used in beverages. The seeds contain cocoa-like compounds and are sometimes processed locally to make rustic chocolate. It also serves as a valuable genetic resource for cacao breeding initiatives.
Interesting facts
The name leiocarpum is derived from Greek roots meaning smooth-fruited, highlighting its defining botanical characteristic. Some botanists have historically classified it as a variety or subspecies of Theobroma cacao due to their strong morphological and genetic similarities.
Geography of distribution
- Brazil
- Colombia
- Peru
- Ecuador
Sources
- Plants of the World Online (POWO)
- World Flora Online (WFO)
- Global Biodiversity Information Facility (GBIF)
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