Corispermum L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 99

publication ID	https://doi.org/10.5281/zenodo.302862
persistent identifier	https://treatment.plazi.org/id/1213417E-FF93-FF91-CD02-F54B40DBCC07
treatment provided by	Plazi
scientific name	Corispermum L.
status

Treatment

14. Corispermum L. 1

Annual herbs, often pubescent with stellate hairs. Leaves alternate, linear or lanceolate, flat or semicylindrical. Flowers hermaphrodite, solitary in the axils of bracts, in spikes arranged in a branched inflorescence. Perianth-segments O-3(-5). Stamens 1-5. Stigmas 2. Achene strongly compressed, usually with a marginal wing. Seeds vertical.

All species occur on shingle or in sandy habitats.

Literature: M. Iljin, Bull. Jard. Bot. URSS 28: 637-54 (1929). M. Klokov, Not. Syst. (Leningrad) 20: 90-136 (1960).12345

1 Base of style curved outwards 1. uralense 1 Base of style straight

2 Achene not winged 12. orientale 2 Achene winged, wing sometimes narrow

3 Wing membranous

4 Flowers in long lax spikes 4. canescens

4 Flowers in short dense spikes

5 Apex of wing distinctly emarginate 2. marschallii

5 Apex of wing not emarginate 3. algidum 3 Wing thick, or membranous only at margin, often very narrow 6 Perianth-segments absent from most flowers 10. intermedium 6 Perianth-segments obvious in all flowers 7 Achene with triangular-acuminate apex 8. declinatum 7 Achene with emarginate or obtuse apex 8 Achene with emarginate apex 5. aralocaspicum 8 Achene with obtuse apex

9 Leaves filiform or semicylindrical

10 Achene 4-5 mm 7. filifolium

10 Achene 2-5-3- 5 mm 6. nitidum

9 Leaves flat

11 Wing not more than as wide as achene

9. hyssopifolium

11 Wing c.) as wide as achene 11. leptopterum