Chiogenes serpyllifolia.

Botanical name: 

Chiogenes serpyllifolia Salisb. Vacciniaceae. Creeping Snowberry.

North America and Japan. The berry is white, edible, juicy and of an agreeable, subacid taste with a pleasant checkerberry flavor. The Indians of Maine use the leaves of the creeping snowberry for tea.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.