the.com/microcitrus

means A genus of native Australian citrus — including the finger lime — whose fruit is packed with little juice-filled vesicles that pop like tiny beads, rather than the usual mushy citrus pulp.

from Straightforward Greek-built botanical Latin: 'micro-' (small) plus 'citrus,' the Latin name for the citron and, by extension, the whole citrus clan. The genus was carved out to classify Australia's native limes, separating them from the main Citrus genus — the fruit itself didn't get its 'caviar' reputation until chefs discovered those tiny pearly vesicles centuries after the plant had been quietly perfecting the trick in the outback.