The story
From Logan + berry, named for the American lawyer and horticulturist James Harvey Logan (1841-1928).
Etymology from Wiktionary, CC BY-SA 4.0.
loganberry
Today it means: A hybrid berry, produced by crossing a raspberry with a blackberry, considered a species Rubus loganobaccus, a variety Rubus ursinus var. loganobaccus, or a nothospecies Rubus × loganobaccus. Full definition →