[4] Schneider,[5] Henry,[6] and Green[7] believed 'Myrtifolia Purpurea' a synonym of U. minor 'Purpurascens',[7] which was also first listed in 1877.

[8] The catalogue of the Späth nursery described U. campestris myrtifolia purpurea as having very small reddish leaves.

One tree was planted in 1893, as U. campestris myrtifolia purpurea, at the Dominion Arboretum, Ottawa, Canada.

[10] Three specimens were supplied by the Späth nursery to the Royal Botanic Garden Edinburgh in 1902 as U. campestris myrtifolia purpurea, and may still exist in Edinburgh as it was the practice of the Garden to distribute trees about the city (viz.

[12] U. myrtifolia purpurea, a small tree with "elegant foliage of beautiful color", appeared in the 1902 catalogue of the Bobbink and Atkins nursery, Rutherford, New Jersey,[13] and in Kelsey's 1904 catalogue, New York.