Odontites Ludwig

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 : 266-267

30. Odontites Ludwig 1

(inch Dispermotheca Beauverd , Macrosyringion Rothm. and Odontitella Rothm. )

Annual, hemiparasitic herbs or dwarf shrubs. Leaves opposite, sessile, usually narrow, entire or obscurely (rarely conspicuously) toothed. Flowers zygomorphic, in terminal, bracteate, spike-like, secund racemes. Calyx tubular-campanulate, 4-toothed. Corolla with a cylindrical tube and 2-lipped limb; upper lip entire to shortly 2-lobed, the lobes not recurved; lower lip 3-lobed, with entire or slightly emarginate lobes. Stamens 4, didynamous; anthers glabrous or hairy, equally mucronate at base. Stigma capitate. Capsule loculicidal; seeds 1-2 mm, rather few, with longitudinal striae or low ridges.

1 Corolla pink, purple or white, without any yellow tint 2 Corolla glabrous 3 Stem and leaves glandular-puberulent to villous, with

± patent hairs 5. granatensis

3 Stem and leaves appressed-eglandular-puberulent 6. purpurea

2 Corolla hairy 4 Stems procumbent 14. Corsica

4 Stems erect

5 Leaves lanceolate, serrate to crenate 15. verna

5 Leaves linear, entire

6 Bracts 6-12 mm, the lower often exceeding the flowers; calyx

4-5 mm; corolla cream, tinged with pink 10. jaubertiana

6 Bracts not more than 5 mm, not exceeding the flowers; calyx 3 mm; corolla purplish-pink throughout

11. kaliformis

1 Corolla yellow, sometimes tinged with red or pink 7 Shrub, with non-flowering shoots at the base 8Inflorescences 3-8 cm, dense, aggregated into ± compact panicles; lower bracts greatly exceeding flowers; immature capsule hairy at apex 12. bocconei

8 Inflorescences 2 -4 cm, ±Iax, not aggregated into panicles; bracts not or only slightly exceeding flowers; capsule glabrous 13. linkii

7 Annual, often with woody stem, but without non-flowering shoots at the base

9 Stems procumbent 14. Corsica

9Stems erect

10 Leaves 4-10 mm wide, lanceolate, usually crenate-serrate

9. lanceolate

10 Leaves 1-4 mm wide, linear to narrowly oblong, entire, or rarely with 1-2 pairs of teeth

11 Corolla 9-25 mm 12 Corolla-tube 5-7 mm, shorter than calyx; inflorescences very dense; capsule glabrous except for apical cilia

1. tenuifolia

12 Corolla-tube 9-21 mm, considerably exceeding calyx; inflorescences lax, at least in fruit; capsule hairy

13 Corolla 17-25 mm, with tube at least twice as long as calyx; bracts linear 2. longiflora

13 Corolla 12-15 mm, with tube not more than 1| times as long as calyx; bracts lanceolate 3. glutinosa

11 Corolla 5-9 mm 14 Hairs on stem patent and usually glandular at least in part 4. viscosa

14 Hairs on stem crispate or appressed, eglandular 15 Bracts c. 5 mm; corolla glabrous; capsule 5-7 mm, narrowly oblong, with not more than 4 seeds

7. rigidifolia

15 Bracts 6-12 mm; corolla usually pubescent; capsule 3-5 mm, elliptical, with more than 4 seeds

16 Anthers widely exserted 8. lutea

16 Anthers ± included under upper lip of corolla

10. jaubertiana