Myrciaria is a genus of large shrubs and small trees in the family Myrtaceae (order Myrtales), described by Otto Berg in 1854. The genus comprises approximately 55 accepted species and is distributed across Central America, South America, Mexico, and the West Indies, with the greatest diversity in Brazil. Common names include hivapuru, sabará, and ybapuru in the languages of the region.
Members of the genus are characterized by their edible berry-like fruits and, in several species, by a striking cauliflorous habit — flowers and fruit emerging directly from the trunk and main branches rather than from the tips of new growth. The fruits are thick-skinned berries with sweet, gelatinous white or rosy-pink flesh, superficially resembling grapes in size and appearance; their flavor has often been compared to that of muscadine or Kyoho grapes.
The most commercially significant members are the jaboticabas and the camu-camu. Jaboticaba-type fruits (shared with the closely related genus Plinia) have been cultivated in Brazil since pre-Columbian times and remain an important crop in the center and south of the country; because the fruit ferments within three to four days of harvest, it is rarely found fresh outside growing regions and is more commonly sold as jam, wine, or liqueur. Myrciaria dubia, the camu-camu, is a small Amazonian riverside tree notable for producing fruit with one of the highest recorded concentrations of vitamin C of any plant — roughly 2–3% of fresh weight — and is harvested commercially in flood-plain regions of Peru and Brazil.
The genus occupies a range of tropical and subtropical habitats, from seasonally flooded Amazonian várzea and riparian gallery forests to moist upland soils. Trees are generally slow-growing evergreens with opposite, lanceolate to elliptic leaves and small white flowers. Their compact fibrous root systems make some species well suited to container cultivation and bonsai practice.
Etymology
The common name jaboticaba (applied to the most celebrated members of the genus) derives from the Tupi words îaboti (tortoise) and kaba (place), meaning "the place where tortoises are found"; it has also been interpreted as "like turtle fat," referring to the white gelatinous pulp of the fruit. The Guarani name yvapurũ combines yva (fruit) with the onomatopoeic purũ, evoking the crunching sound the fruit makes when bitten.
Distribution
Myrciaria is native to Central and South America, Mexico, and the West Indies, with the highest species diversity in Brazil (recorded from all five Brazilian macro-regions). The genus also extends through Colombia, Ecuador, Peru, Bolivia, French Guiana, Guyana, and Argentina, and into Central America as far north as Belize, Guatemala, El Salvador, and Costa Rica, as well as the Caribbean islands of Cuba, Hispaniola (Dominican Republic and Haiti), and others.
Ecology
Species occupy a range of tropical and subtropical habitats. Myrciaria dubia (camu-camu) typifies the flood-tolerant end of the genus, occurring in locally dense stands in Amazonian várzea and riparian vegetation where roots and aerial parts may be submerged for four to five months each year; it flowers at the end of the dry season and fruits at the peak of the rainy season. Other species favour moist, lightly acidic upland soils, though several are adaptable to a broader range of substrates.
Cultivation
Jaboticaba-type Myrciaria species have been cultivated in Brazil since pre-Columbian times. Plants are slow-growing; seed-grown trees may take 10–20 years to fruit, while grafted specimens may bear fruit in as few as five years. Their compact, fibrous root systems make them suitable for container growing and they are popular as bonsai subjects in Taiwan and parts of the Caribbean. Trees are intolerant of salt spray and salty soils but tolerant of mild drought and brief frosts to approximately −3 °C (26 °F). Key diseases include Austropuccinia psidii (myrtle rust), canker (Colletotrichum gloeosporioides), dieback (Rosellinia), and fruit rot (Botrytis cinerea).
Cultural Uses
The jaboticaba fruit is a staple of Brazilian markets and home gardens, eaten fresh or processed into jams, tarts, wines, and liqueurs due to its extremely short post-harvest shelf life of three to four days. In Brazilian political discourse, jabuticaba has become a colloquial term for a law, institution, or situation considered absurdly idiosyncratic — something that, like the jaboticaba tree, "could only exist in Brazil." Myrciaria dubia (camu-camu) has emerged as an internationally traded superfood prized for its exceptional vitamin C content, with Japan as a major buyer.
