Alkanna Tausch

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 : 95

publication ID	https://doi.org/10.5281/zenodo.305475
persistent identifier	https://treatment.plazi.org/id/03C287E6-FFFC-556B-E747-68D9F4191987
treatment provided by	Plazi
scientific name	Alkanna Tausch
status

Treatment

12. Alkanna Tausch View in CoL 2

Annual or perennial herbs. Flowers in terminal, bracteate cymes. Calyx lobed almost to the base. Corolla variously coloured, with more or less cylindrical tube and infundibuliform limb, with a ring of hairs and sometimes with small invaginations in the throat. Stamens included, inserted at about the middle of the tube. Style included; stigma small, entire. Nutlets usually 2 by abortion, subreniform to obliquely ovoid and curved, granular to tuberculate, strongly stipitate. All the species grow in dry places. Literature: K. H. Rechinger fil., Ann. Naturh. Mus. (Wien)

68: 191-220 (1965). 1 Corolla pubescent or puberulent outside 2 Plant eglandular 15. scardica 2 Plant glandular 3 Corolla-tube as long as or slightly longer than calyx 4 Corolla-limb c. 6 mm in diameter 3. calliensis 4 Corolla-limb 8-11 mm in diameter 5. stribrnyi 3 Corolla-tube at least 1J times as long as calyx 5 Calyx densely glandular-pubescent and sparsely setose;

bracts as long as or slightly longer than calyx 6. methanaea 5 Calyx eglandular or ±glandular but with dense setae;

bracts usually twice as long as calyx (11-14). pindicola group 1 Corolla glabrous outside 6 Corolla blue 7 Bracts not or only slightly longer than calyx 7. tinctoria 7 Bracts nearly twice as long as calyx 15. scardica 6 Corolla yellow, orange, whitish, greyish or brownish 8 Bracts twice as long as calyx 9 Leaf-margin erose-sinuate and undulate 1. orientalis 9 Leaf-margin entire, flat 10 Corolla-limb 8-10 mm in diameter 2. graeca 10 Corolla-limb 5-7 mm in diameter

11 Annual; bracts elliptical, much longer than flowers

9. lutea

11 Perennial; bracts lanceolate-triangular, not or only slightly longer than flowers (11-14). pindicola group 8Bracts ± equalling calyx 12 Calyx eglandular 13 Corolla-limb c. 10 mm in diameter; tube slightly longer than calyx 10. pelia 13 Corolla-limb c. 4 mm in diameter; tube twice as long as calyx 16. sieberi 12 Calyx ± glandular 14 Corolla-tube nearly twice as long as calyx 8. corcyrensis 14 Corolla-tube as long as or slightly longer than calyx

15 Calyx 4-5 mm in flower, c. 7 mm in fruit 4. primuliflora

15 Calyx c. 7 mm in flower, 9-15 mm in fruit

16 Nutlets 3-5 mm in diameter; corolla yellow 1. orientalis

16 Nutlets 2 mm in diameter; corolla whitish 17. sartoriana