| + | Vaccinium membranaceum, Douglas (V. myrtilloides, Hook., not Michx.). An erect branching shrub, mostly glabrous throughout: the twigs slightly angled: lvs. 1-2 in. long, oval, oblong or ovate, acute or obtuse, finely serrate, membranous, reticulate-veined, green above, paler beneath, not shining: calyx-limb entire; corolla depressed-globose, yellowish green or purplish: berries large, oblate, black or purplish black, rather acid. Lake Superior, N. Wyo., westward and northwestward. |