PlantaeDB Logo
Login Sign-up

Genus Vatica in Tribe Dipterocarpeae

In botanical taxonomy, a genus (plural genera) is a rank used to group closely related species within a family. In the hierarchy, genus sits below family and above species.

Genera are defined by shared morphological, anatomical, and genetic characteristics (for example, features of flowers, fruits, seeds, or leaves) that indicate a close evolutionary relationship among the species they contain.

Each genus can include one or more species. Examples include Rosa (roses) and Solanum (nightshades, including tomato and eggplant).

Do you wish to read more about plant taxonomy? Click here!

Genus Description

Suggest a correction!

Vatica (Dipterocarpaceae) comprises approximately 65 species of evergreen to semi-evergreen trees native to the paleotropics of Southeast Asia, extending into the Andaman Islands, and includes the type Vatica odorata. The genus occupies lowland to lower montane tropical forests, especially on well-drained soils over limestone and granite; many taxa are coastal or riverine, with several narrow endemics on serpentine or kerangas formations. It is a wind-dispersed lineage within dipterocarps, characterized by five-lobed calyx that enlarges into unequal wings in fruit and a three-locular ovary with axile placentation. The trees are often resinous, with alternate, simple, entire leaves and caducous stipules; inflorescences are axillary or terminal panicles with numerous small, white to yellowish flowers, each with five imbricate petals and ten stamens arranged in a single ring. Fruits are nut-like, typically trigonous to broadly ovoid, with a persistent calyx forming 2–5 unequal wings that aid in wind dispersal.

Diversity is concentrated in Borneo and Sumatra, with secondary centers in the Malay Peninsula and the Philippines; Palawan supports several locally endemic species. Most Vatica occur below 1,000 m, but a few species extend into lower montane forests and hill kerangas; several taxa are limited to limestone outcrops, alluvial flats, or river margins, producing pronounced local microendemism. Pollinator systems remain poorly documented for Vatica, but generalist wind and possibly fly pollination are inferred within the family. The base chromosome number is x = 7, typical for Dipterocarpaceae (Mangenot & Mangenot, 1962).

Historically, Vatica has been divided into two groups often treated as sections or subgenera (Vatica and Sunapeta), distinguished primarily by calyx and indumentum differences. Molecular analyses resolve Vatica as monophyletic but reveal reticulate patterns with closely related genera; Sunapeta is not consistently resolved as separate, and recent treatments retain Vatica in its broad sense while noting unresolved relationships with Hopea and Cotylelobium (Dayanandan et al., 1999; Asano et al., 2004; APOG, 2016). POWO and WFO currently treat Vatica in this wider circumscription (POWO, 2024; WFO, 2024).

Several species are valued locally for durable timber and resinous wood, and a few are cultivated ornamentals for their fragrant flowers; however, none is a major global commodity. The genus is conservation-sensitive due to extensive lowland deforestation and habitat fragmentation, with numerous narrow endemics assessed as threatened. Targeted field surveys and integrative phylogenetics to refine species limits and distributional data are priorities, especially in areas of rapid land-use change.

Pick a Species to see its components:
Pick a Section to see its components: