Nephelium hypoleucum

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Korlan
HNEP42.jpg
Korlan fruits
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Sapindaceae
Genus: Nephelium
Species:
N. hypoleucum
Binomial name
Nephelium hypoleucum
Synonyms [2]
  • Nephelium cochinchinense Pierre
  • Xerospermum cochinchinense Pierre
  • Xerospermum laoticum Gagnep.

Nephelium hypoleucum, the korlan [3] ,is a evergreen tree in the family Sapindaceae. It is in the same genus as the rambutan and also closely related to several other tropical fruits including the lychee, longan, and guinep. The plant is native to Southeast Asia and lives wild in the jungles of the region, although it is also cultivated in some countries such as Cambodia, Malaysia ,Thailand, Vietnam, Laos, and Myanmar [3] .

Contents

Tree description

Nephelium hypoleucum is an angiosperm tree. It can reach up to 30 meters tall, with the trunk growing to 1.4 meters in diameter [3] . The leaflets are in pairs of 3 to 4. The margin of the leaflets are uneven and wavy. The leaves are alternate and have a spiral or whorled arrangement [3] . The upper side of the leaf is usually smooth and the bottom is typically covered by a silky-like hair. The leaf can also have a domatium present for small insects or fungi [3] . The flowers grow on an inflorescence and occur at the terminal position of the leaf axil in the upper region of the plant; they are small greenish flowers rich in nectar. The flower is unisexual, and the male flower can have anywhere from 7-10 stamen. Flowers have between 4 and 6 sepals and petals [4] . Nephelium hypoleucum flowers from the months of December to March with fruit setting from February to June [5] . It is grown in the wild in the mountain areas, but it can be propagated by seed or by air layering [5] .The fruit is a round to oval drupe borne in a loose pendant cluster.

Fruit description

The fruit is warty with a round to oval shape. It is drupe borne in a loose pendant cluster. It is a three-dimensional shape with a minimum of two axes that are equal. The warts on the fruit can be a linear or pyramidal shape which can get up to 1.5 mm (about 0.06 in) high [3] . The pollinators of this fruit are insects; it is eaten by squirrels and primates such as monkeys, apes, and humans as well. The fruit has a fleshy texture and when the fruit is ripe it will turn a reddish color. The seed inside of the fruit has an edible white fleshy seedcoat [3] .

Taxonomy

Nephelium hypoleucum is in family Sapindaceae and genus Nephelium, with the common name korlan [3] .

Habitat

Nephelium hypoleucum will only grow in fertile sandy soil at high altitudes of up to 1200 meters (about 3937 ft), This species is mainly found in rainforests as well as savannah in a hilly country [3] . It prefers to be in a tropical climate with high temperatures and high humidity [5] .

Uses

The fruit is commonly eaten fresh off the tree. Only the pulp is eaten due to the seed being poisonous and is described to have a sour taste [6] . Unlike the other similar fruits in this family, the korlan is picked by the locals to be sold in small quantities due to it not being cultivated [7] . Nephelium hypoleucum cannot be grown commercially and there is not a lot of information on the growth rate of this tree. The fruit is sometimes peeled and eaten with salt and chili powder, or fish sauce and sugar. Korlan is believed to have medicinal qualities such as reducing stress, regulating blood sugar, helping with digestion, and increasing resistance to the flu, viruses, colds and herpes [6] , although these claims have not been evaluated by medical studies.

Related Research Articles

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<span class="mw-page-title-main">Rambutan</span> Southeast Asian fruit

Rambutan is a medium-sized tropical tree in the family Sapindaceae. The name also refers to the edible fruit produced by this tree. The rambutan is native to Southeast Asia. It is closely related to several other edible tropical fruits, including the lychee, longan, pulasan, and quenepa.

<span class="mw-page-title-main">Drupe</span> Fleshy fruit with hard inner layer (endocarp or stone) surrounding the seed

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<span class="mw-page-title-main">Sapindaceae</span> Family of flowering plants

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Nephelium ramboutan-ake, the pulasan, is a tropical fruit in the soapberry family Sapindaceae. It is closely related to the rambutan and sometimes confused with it. Other related soapberry family fruits include lychee and longan. Usually eaten fresh, it is sweeter than the rambutan and lychee, but very rare outside Southeast Asia.

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<i>Aglaia argentea</i> Species of flowering plant

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<i>Arctostaphylos glauca</i> Species of tree

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This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names.

<i>Allophylus cobbe</i> Species of plant in the family Sapindaceae

Allophylus cobbe, commonly known as titberry or Indian allophylus, is a pantropical, shrub in the family Sapindaceae with many uses in traditional medicine. It has a highly variable morphology throughout its range and may prove to be more than one species.

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<i>Zanha africana</i> Species of flowering plant

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<i>Lepisanthes alata</i> Species of flowering plant

Lepisanthes alata, also called the Johore tree, blimbing cina, ceri or engkili, is a species of flowering plant, a tropical forest fruit-tree in the lychee family, that is native to Southeast Asia.

Nephelium cuspidatum, also known as rambutan hutan in Malay and buah sibau in Iban, is a species of flowering plant, a tropical forest fruit-tree in the rambutan family, that is native to Southeast Asia.

<i>Nephelium aculeatum</i> Species of tree

Nephelium aculeatum, also known as Rambutan utan, is a tree that is native to Borneo The tree's fruit is edible and is an oval shape. It has groups of 4 stemming jugate leaves and its petioles can be 8–10 cm (3.1–3.9 in) long. Though the leaves and fruits may look similar to Nephelium hypoleucum, they do not have much in common in botanical standards.

<i>Diploglottis alaticarpa</i> Species of flowering plant

Diploglottis alaticarpa is a plant in the maple and lychee family Sapindaceae which is endemic to northeast Queensland, Australia. It was first recognised as a distinct species in 1994 and was formally described in 2014.

References

  1. Marfleet, K. & van Welzen, P. C. (2021). "Nephelium hypoleucum". IUCN Red List of Threatened Species . 2021: e.T176154840A177878187. doi: 10.2305/IUCN.UK.2021-2.RLTS.T176154840A177878187.en . Retrieved 1 September 2024.
  2. 1 2 "Nephelium hypoleucum Kurz". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 1 September 2024.
  3. 1 2 3 4 5 6 7 8 9 "NParks | Nephelium hypoleucum". www.nparks.gov.sg. Retrieved 2024-12-05.
  4. "Nephelium hypoleucum Kurz | Species". Bhutan Biodiversity Portal. Retrieved 2024-12-05.
  5. 1 2 3 "Nephelium hypoleucum Kurz".
  6. 1 2 "Korlan Fruit | Nutrition facts-Korlan Fruit | Health benefits". www.fruitsinfo.com. Retrieved 2024-12-05.
  7. "Nutrients, Phytochemicals and In Vitro Disease Prevention of Nephelium hypoleucum Kurz Fruit".