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persea
''Persea'' is a genus of about 150 species of evergreen trees belonging to the laurel family, Lauraceae.〔André Joseph Guillaume Henri Kostermans. 1993〕 The best-known member of the genus is the avocado, ''P. americana'', widely cultivated in subtropical regions for its large, edible fruit.
==Overview==
They are medium-size trees, tall at maturity. The leaves are simple, lanceolate to broad lanceolate, varying with species from long and broad, and arranged spirally or alternately on the stems. The flowers are in short panicles, with six small greenish-yellow perianth segments long, nine stamens and an ovary with a single embryo. The fruit is an oval or pear-shaped drupe, with a fleshy outer covering surrounding the single seed; size is very variable between the species, from in e.g. ''P. borbonia'' and ''P. indica'', up to in ''P. americana''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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