Melampyrum polonicum, (Beauverd) Soo

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 : 255

8. M. polonicum (Beauverd) Soó , Feddes Repert. 2 4: 156 (1927).

Like 7 but calyx-tube puberulent or subglabrous, except sometimes for long hairs on veins and margin; calyx-teeth longer and narrower; bracts lanceolate, violet-blue. • Poland and W. part o f U.S.S.R.?Ge Po Rs (B, C, W).

Ecoty pic variants:

Autumnal: type of the species.

Aestival: subsp. hayekii Soó , loc. cit. (1927). (9-12). M. velebiticum group. Leaves linear-lanceolate to lanceolate. Bracts violet-blue. Calyx puberulent to hirsute, with hairs between the veins as well as on them, those on the distal part of the calyx directed towards the apex, those on the proximal part deflexed (rarely subglabrous except for hairy veins). Corolla 14-22 mm, yellow. 1 Calyx-teeth 4-6 mm, patent; corolla 16-22 mm

2 Calyx puberulent; bracts mostly entire 9. velebiticum 2 Calyx hirsute; bracts toothed 10. vaudense 1 Calyx-teeth 6-9 mm, porrect; corolla 14-16 mm

3 Calyx hirsute 11. catalaunicum 3 Calyx puberulent 12. italicum