''Goniothalamus gabriacianus'' is a species of
plant in the family
Annonaceae. It is native to
Cambodia, the province of
Hainan China,
Laos
Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...
,
Thailand and
Vietnam.
the French botanist who first
formally described the species using the
basionym
In the scientific name of organisms, basionym or basyonym means the original name on which a new name is based; the author citation of the new name should include the authors of the basionym in parentheses. The term "basionym" is used in both botan ...
''Oxymitra gabriaciana'', named it after Paul-Pierre Gabriac, a French civil servant in Vietnam, who provided one of the specimens that he examined.
Description
It is a bush reaching 3 to 4 meters in height. Its smooth, striated, gray branches have sparse fine hairs when young. Its membranous, broad, lance-shaped leaves are 8–22 by 3–6.5 centimeters and come to a tapering point at their tip. Both surfaces of the leaves are smooth, the upper surfaces are shiny, and the lower surface is more pallid. Its smooth, wrinkled petioles are 1 centimeter long and have a channel on their upper side. Its solitary flowers are
axillary and born on 0.5 centimeter-long
pedicels
In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''.
Description
Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...
. It has 3
sepals
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...
that are 5 millimeters long and come to a point at their tip. The sepals are sparsely hairy on the outside and smooth on the inside. Its 6 petals are arranged in two rows of 3. The fleshy, oval outer petals are 12 millimeters long and have course rust-colored hairs. The inner petals are 9–10 millimeters long. Its flowers have numerous
stamens with linear anthers. Its flowers have numerous
carpels
Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' ...
. Its
ovaries have 2 locules.
Reproductive biology
The pollen of ''G. gabriacianus'' is shed as permanent tetrads.
Habitat and distribution
It has been observed growing along river banks and on mountains.
[
]
References
gabriacianus
Flora of Cambodia
Flora of Hainan
Flora of Laos
Flora of Thailand
Flora of Vietnam
Taxa named by Suzanne Jovet-Ast
Taxa named by Henri Ernest Baillon
{{Annonaceae-stub