Dimocarpus longan var. malesianus

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Dimocarpus longan var. malesianus

Description

Leaves 2-4(-6)-jugate; Inflorescences variable, flowers rarely solitary, cymules often subsessile. Petals distinctly longer than the sepals, nearly always densely woolly, fur-like especially inside. Fruits:

Distribution

Asia-Tropical: Borneo present; Cambodia (Cambodia present); Laos (Laos present); Malaya (Peninsular Malaysia present); Maluku (Maluku present); Philippines (Philippines present); Sulawesi (Sulawesi present); Sumatera (Sumatera present), Burma present, Mangoli present, Menado present, Muna I present, S Vietnam present, Sula Islands present
Burma, Laos, Cambodia, S Vietnam, and Malesia: Sumatra, Malay Peninsula, Borneo, Philippines, Celebes (Menado, Muna I.), and Moluccas (Sula Islands: Mangoli).

Uses

Sometimes planted as a fruit tree. The wood is used as a construction timber. See further: .

Notes

The total range of variation of this variety is nearly as wide as that of the species as a whole. This is particularly true of the leaves and fruits; the flowers are rather uniform. Still, further subdivision seems at present impossible.
The variation is centred in Borneo: with sufficient material it is possible to separate here some 30 to 40 entities. As their delimitation is often vague, and as fruits are lacking for many of them, they cannot be clearly circumscribed.
In the Philippines, on the contrary, the situation is fairly simple: all fruiting material can be divided into two races, for a long time distinguished as species: 'Euphoria cinerea ' with big (c. 2 cm in diam.), densely thick-warty fruits, and 'Euphoria gracilis' with small (1 cm or less in diam.), fine warty-fruits. The former is identical with some collections from Borneo (e.g. Jaheri 1274, Kos-termans 13326), the latter with Euphoria microcarpa from N Borneo.
The Sumatran material is very uniform; it agrees completely with the N Bornean form usually identified as Euphoria malaiensis.
The Malay Peninsula has few forms. The common form is like that of Sumatra; this is true Euphoria malaiensis characterized by rather big (1.8 cm in diam.), nearly smooth fruits and large (up to c. 16 by 6 cm) leaflets. Pometia curtisii is very similar to 'gracilis' from the Philippines and 'microcarpa' from Borneo: it has smaller leaflets (up to c. 10 by 3 cm) and smaller (1.2 cm in diam.) fine-knobby or -spiny fruits. S F 32405 may represent a third form: it is densely reddish brown velvety and large in all its parts.
The few specimens from Celebes and the Moluccas all lack fruits; they cannot further be placed.
The material from continental Asia is fairly uniform and agrees mainly with 'gracilis'.