Citrus margarita

Citrus margarita, the oval kumquat or Nagami kumquat, is a species of kumquat; a type of citrus fruit in the genus Citrus, family Rutaceae. Its epithet, margarita, is Latin for pearly.

It is first described by the Portuguese botanist João de Loureiro in 1790, in his Flora cochinchinensis under the name Citrus margarita. It is described again by the American botanist Walter Tennyson Swingle in 1915, as varieties of Citrus japonica. However, recent phylogenetic analysis suggested that C. margarita is a single 'true' species.