Garcinia sessilis
| Heilalain / Buluwai (Garcinia sessilis) | |
|---|---|
| Scientific name | Garcinia sessilis [1] |
| Common names | Heilalain (Tonga); Buluwai (Fiji) [2] |
| Genus | Garcinia [2] |
| Family | Clusiaceae [2] |
| Order | Malpighiales [2] |
| Distribution | Solomon Islands, Fiji, Samoa and Tonga [3] |
| Habitat | Wet and dry forest, from sea level to 1,150 m [3] |
| Habit | Evergreen tree, 4–20 m tall [3] |
| Sex expression | Dioecious [3] |
| Fruit | Red, obovoid fruit up to 4 cm long; recorded as eaten raw [3] |
| Phenology | Flowering and fruiting recorded throughout the year [3] |
Garcinia sessilis is an evergreen Pacific tree recorded from the Solomon Islands, Fiji, Samoa and Tonga. It occurs in wet and dry forest from sea level to about 1,150 m and is documented as a locally used fruit tree. [3] Kew's Plants of the World Online also lists the species under Garcinia. [4]
Description[edit | edit source]
The tree is reported at 4–20 m in height, with a bole up to 30 cm in diameter. The fruit is red and obovoid, reaching about 4 cm in length. [3] The accepted name has the synonyms Clusia sessilis and Firkea sessilis, and the recorded names Heilalain and Buluwai are associated with Tonga and Fiji respectively. [2]
A taxonomic revision of Garcinia section Garcinia separates species using characters of the male flowers, fruit and leaves. [5] Those characters are useful when checking an identification, particularly where a specimen is known only by a local name or an older synonym.
Cultivation[edit | edit source]
Soil and water[edit | edit source]
The native record spans both wet and dry forest. As a Garcinia from that setting, it is reasonable to begin with a planting site that drains freely but does not swing abruptly from saturated to very dry conditions; adjust irrigation to the local seasonal pattern rather than treating the plant as a permanently wetland tree. This is a genus-level cultivation inference, not a species-tested irrigation schedule. [3]
Sun and humidity[edit | edit source]
Forest occurrence makes filtered light and humid air a sensible starting point while a plant establishes. The inclusion of dry forest in the recorded habitat also argues for good airflow and a site that can dry seasonally, rather than an enclosed, continuously saturated position. These are habitat-based starting points for cultivation, not fixed exposure limits for the species. [3]
Seasonal changes[edit | edit source]
Garcinia sessilis is evergreen, and flowering and fruiting have been recorded throughout the year. In cultivation, maintain an active-growth moisture regime through the warm season and watch the plant's response as the local dry or cool season changes; do not assume that one universal harvest month applies across its Pacific range. [3]
Propagation[edit | edit source]
As a genus-level Garcinia starting point, many Garcinia seeds can be slow to germinate, sometimes taking six months or more. Plan propagation on that timescale rather than discarding a viable-looking seedling tray after a short delay; this timing is not a guarantee for G. sessilis. [3]
Flowering, fruiting, and harvest[edit | edit source]
The species is recorded as dioecious, so male and female plants are involved in fruit production. A grower establishing plants for fruit should therefore preserve the identity and provenance of each seedling and avoid assuming that one juvenile plant can provide both sexes. [3] Flowering and fruiting are reported throughout the year, so harvest timing should be based on observed fruit development rather than a fixed calendar date. [3]
Fruit and uses[edit | edit source]
The fruit is described as red, obovoid and up to 4 cm long. It is recorded as eaten raw in local use. [3]