Seed morphology of the only species of Erica sect. Chlorocodon, E. scoparia, has been studied. Four subspecies are recognized: subsp. azorica, subsp. maderincola, subsp. platycodon and subsp. scoparia. Size and shape of seeds and size and shape of surface cells were measured. SEM pictures were performed for whole seeds and detail of the four taxa. Other minor characters such as weight of 100 seeds and seed colour were also studied. One way analysis of variance were performed for the different variables. Surface cells boundaries and anticlinal walls curvature are the main diagnostic characters. The continental subspecies (subsp. scoparia) is easily differentiated from the maca- ronesian taxa. Within these, subsp. azorica and subsp. maderincola have a similar seed type, different from subsp. platycodon seeds. The subspecific rank for these four taxa is recomended. A key to the subspecies is presented.