Vaccinium oxycoccos, L.

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 : 12

1. V. oxycoccos L. , Sp. Pl. 351 (1753)

( Oxycoccus quadripetalus Br.-Bl., O. palustris Pers. ).

Stems up to 80 cm, procumbent. Leaves 6-10(-15) x 2-5-5(-6) mm, ovate to oblong, subglabrous, dark shining green above, whitish beneath; margin revolute. Racemes terminal; pedicels puberulent; bracteoles c. 1-5 x 0-4 mm, linear-oblong. Calyx-lobes deflate to semicircular, ciliate. Corolla pinkish-red; lobes 5-6 mm, ovateoblong. Filaments puberulent, much shorter than anthers. Berry (6—)8—10(—15) mm, globose to pyriform, red, sometimes speckled with white or brown. 2« = 48. Peat-bogs, usually in the wetter parts. N. & C. Europe, extending locally southwards to S.C. France, N. Italy and S.E. Russia. Au Be Br Cz Da Fe Ga Ge Hb He Ho Hu It Ju No Po Rm Rs (N, B, C, W, E) Su. Plants like 1 but more robust, with larger leaves and fruit, and with 2n = 72, are known from Scandinavia. They have been interpreted as hybrids between 1 and 2, which have not achieved fertility in spite of doubling of the chromosome number. Fertile plants intermediate between 1 and 2 have been reported from Sweden and Finland; their chromosome number is not known and their status is obscure.