Nephelium macrophyllum

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Nephelium macrophyllum


Tree, 24 m high, dbh up to 40 cm. Leaves 1- or 2-jugate; Inflorescences pseudoterminal. Flowers known only from remains under the fruit. Sepals probably only slightly connate, c. 2 mm long. Petals present according to Radlkofer. Ovary 2-, rarely 3-celled. Fruits ellipsoid, c. 3.5 by 2 cm, appendages dense, c. 7.5 mm long, bulbous-based, the upper part tongue-shaped slightly curved, densely ferrugineous-puberulous;


Asia-Tropical: Borneo present, Sarawak, near Kuching present
MalesiaBorneo (Sarawak, near Kuching).


1. I could not find any trace of petals, which were mentioned by Radlkofer, nor of stamens. However, because of the systematic position of this species a complete or nearly complete corolla and 8 or somewhat fewer stamens are to be expected.
2.The fruits of the present species may superficially resemble those of N. ramboutan-ake. However, the latter species has glabrous fruits, and also differs in its much thinner leaflets.
3. This species sometimes shows some vegetative resemblance to N. melanomiscum. As far as can be judged from the few specimens available of both species, N. macrophyllum is characterized by asymmetrical, slightly falcate leaflets, whereas N. melammiscum, like most species of Nephelium, has symmetrical leaflets. The fruits of both species are distinctly different.


Radlk. 1933 – In: Engl., Pflanzenr. 98. p 973
Leenh. 1986 – In: Blumea. p 406