龍眼當造 longan season

街市水果檔都在賣龍眼了。有說龍眼是荔枝奴,說法有點侮辱,但確實點明龍眼跟荔枝的緊密關係。每年自然的定律,荔枝果後到龍眼。為龍眼扳回一分,荔枝的果雖然津美非凡,但龍眼卻在藥用價值上超越荔枝。明李時珍便有評 「資益以龍眼為良」。兩者皆原生華南。

龍眼是常綠大喬木,壽命可長達四百多年。長橢圓形葉,全緣革質,互生,偶數羽狀複葉。開黃白小花,雌雄兩性。成實於初秋,累累而墜,外形圓滾,皮青褐色,革質而脆,果肉味甜可吃。

我們熟悉龍眼,但其原生種已被列入iucn 紅色名錄「近危」的物種。

longan fruit

longan is now in season. when we talk about longan, we always include lychee to the conversation because the two have many connections. both longan and lychee are belonging to the family of soapberry (sapindaceae). they are native to southern china and asia. their fruit seasons are always in the sequence of lychee then longan. just go to fruit stalls or wet market and take a look. it is now all longan. earlier on, lychee was the star of the fruit market. their stage times are always one after another.

longan is an evergreen tree. it can have a lifespan of hundreds of year. alternate, compound leaves with 6-9 pairs of leaflets. small whitish flowers produced in terminal or axillary panicles. fruits are round with a rough, light brown peel and a sweet, translucent, whitish pulp surrounding a smooth black seed.

the longan was listed as near threatened (iucn 2.3) on the iucn red list.

龍眼 longan (dimocarpus longan) –  kingdom: plantae 植物界|(unranked): angiosperms | (unranked): eudicots | (unranked): rosids | order: sapindales 無患子目 | family: sapindaceae 無患子科 | genus: dimocarpus 龍眼屬 | species: d. longan 龍眼  wiki

 

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