Cassiope D. Don

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 8

4. Cassiope D. Don 1

Evergreen dwarf shrubs with procumbent to ascending stems; leaves alternate or opposite, small, sessile, imbricate. Flowers 5-merous, axillary or terminal, nodding, on slender pedicels; bracteoles absent. Sepals free, shorter than corolla. Corolla campanulate to hemispherical, lobed about half-way to the base, deciduous. Stamens 10; anthers included, with filiform, deflexed apical appendages. Fruit an erect, loculicidal capsule. Leaves decussate, obtuse, deeply sulcate on abaxial surface, puberulent, closely appressed to stem 1. tetragona

Leaves alternate, acute, not sulcate, glabrous except for minute cilia, not closely appressed to stem 2. hypnoides