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Lansium domesticum
Lansium domesticum, also known as langsat or lanzones, is a species of tree in the family Meliaceae. The plant, which originates from western Southeast Asia, bears edible fruit. It is the provincial flower for the Indonesian province of South Sumatra.Lansium domesticum, also known as langsat or lanzones, is a species of tree in the family Meliaceae.The tree is average sized, reaching 30 metres (98 ft) in height and 75 centimetres (30 in) in diameter. The trunk grows in an irregular manner, with its buttress roots showing above ground. The tree's bark is a greyish colour, with light and dark spots. Its resin is thick and milk coloured. The pinnately compound leaves are odd numbered, with thin hair, and 6 to 9 buds at intervals. The buds are long and elliptical, approximately 9 to 21 centimetres (3.5 to 8.3 in) by 5 to 10 centimetres (2.0 to 3.9 in) in size. The upper edge shines, and the leaves themselves have pointed bases and tips. The stems of the buds measure 5 to 12 millimetres (0.20 to 0.47 in). The flowers are located in inflorescences that grow and hang from large branches or the trunk; the bunches may number up to 5 in one place. They are often branched at their base, measure 10 to 30 centimetres (3.9 to 12 in) in size, and have short fur. The flowers are small, with short stems, and have two genders. The sheathe is shaped like a five lobed cup and is coloured a greenish-yellow. The corona is egg-shaped and hard, measuring 2 to 3 millimetres (0.079 to 0.12 in) by 4 to 5 millimetres (0.16 to 0.20 in). There is one stamen, measuring 2 millimetres (0.079 in) in length. The top of the stamen is round. The pistil is short and thick. The fruit is can be elliptical, oval, or round, measuring 2 to 7 centimetres (0.79 to 2.8 in) by 1.5 to 5 centimetres (0.59 to 2.0 in) in size. It is covered by thin, yellow hair and a sheathe of leaves that do not fall off. The skin of the fruit is think, approximately 6 millimetres (0.24 in). The fruit contains 1 to 3 seeds, flat, and bitter tasting; the seeds are covered with a thick, clear-white aril that is tastes sweet and sour. The sweet juicy flesh contains sucrose, fructose, and glucose. For consumption, cultivars with small or undeveloped seeds and thick aril are preferred.
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