Cacao Tree
Theobroma cacao
Theobroma cacao, commonly known as the cacao or cocoa tree, is a tropical evergreen species …
White-flowered cacao (Theobroma albiflorum)
Silhouette: T. Michael Keesey
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Theobroma albiflorum: Botanical Overview and Characteristics
Thriving under the dense canopy of the Amazon basin, Theobroma albiflorum catches the eye of botanists with its distinctive pale blossoms. This wild relative of the common cacao tree grows in the humid tropical lowlands of South America. It plays an important role in the biodiversity of the rainforest understory.
Its natural populations are mostly scattered across primary forests where high humidity and warm temperatures prevail. Understanding this species helps researchers unlock genetic traits that could benefit commercial cacao cultivation.
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 albiflorum (White-flowered cacao)
Morphology
This evergreen understory tree typically reaches heights of 5 to 10 meters, presenting a slender trunk and a moderate canopy. The leaves are simple, alternate, and coriaceous, showing a glossy green surface with prominent veining on the underside. They are oblong-elliptic in shape and can grow up to 30 centimeters in length.
Unlike many of its relatives, the flowers are predominantly white or cream-colored, occurring in small clusters directly on the branches or the main trunk. The resulting fruit is an elongated, woody pod containing seeds surrounded by a sparse, fibrous pulp.
Applications
Indigenous communities occasionally gather the wild fruits for their edible pulp, which offers a mild, slightly acidic flavor. The species is primarily valued by scientists for genetic research and crop improvement programs. Introducing its wild genes could potentially enhance disease resistance in commercial cacao crops.
Interesting facts
The specific epithet albiflorum directly references its white flowers, which are unusual in a genus dominated by red and yellow blooms. Unlike commercial cacao, this species relies on specialized forest midges and small insects for pollination in its dark, humid habitat.
Geography of distribution
- Brazil
- Peru
- Colombia
Sources
- Plants of the World Online (POWO)
- World Flora Online (WFO)
- Global Biodiversity Information Facility (GBIF)
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