Vaccinium atrococcum, Heller (V. corymbosum var. atrococcum, Gray). Downy Swamp Blueberry. A tall branching shrub similar to the last species: lvs. elliptic-oblong, acute, entire, dark green above, densely pubescent beneath, unexpanded at flowering-time: fls. in dense racemes; corolla shorter, greener, and often redder than in the last: berries said to be always black without bloom, smaller than in the last, of good flavor. Moist woods and bogs of E. N. Amer.—Apparently distinct from V. corymbosum, but seeming to hybridize with it.