Centaurea, L.

Bona, Mehmet, Çiftçi, Almıla & Ekşi, Gülnur, 2023, Cypsela micro-macromorphological characteristics of selected taxa of Centaurea L. from Turkey and their systematic importance, Adansonia (3) 45 (2), pp. 27-39 : 36

KEY TO THE STUDIED TAXA ACCORDING TO CYPSELA CHARACTERISTICS

1. Pappus absent .............................................................................................................................................. 2

— Pappus present ........................................................................................................................................... 3

2. Boundaries wavy, thick ................................................................................. C. calcitrapa subsp. calcitrapa L.

— Boundaries straight, thin ................................................ C. calcitrapa subsp. cilicica (Boiss. & Bal.) Wagenitz

3. Pappus whitish, straw .................................................................................................................................. 4

— Pappus brown, purplish, coppery ................................................................................................................ 7

4. Pappus plumose ..................................................................................................................... C. glastifolia L.

— Pappus barbellate ........................................................................................................................................ 5

5. Cypsela surface glabrous ............................................................................................ C. regia Boiss. var. regia

— Cypsela surface scarcely scarcely-hairy ......................................................................................................... 6

6. Cypsela surface hairs glandular .......................................................................................... C. sclerolepis Boiss.

— Cypsela surface hairs not glandular ......................................................................................... C. solstitialis L.

7. Pappus purplish ........................................................................................................ C. goksivriensis M. Bona

— Pappus brownish or coppery ....................................................................................................................... 8

8. Cypsela brown with cream stripes ................................................................................................................ 9

— Cypsela straw to whitish with no stripes .................................................................................................... 12

9. Cypsela surface smooth ............................................................................................................................. 10

— Cypsela surface not smooth ....................................................................................................................... 11

10. Cypsela glabrous ............................................................................. C. cataonica Boiss. & Hausskn. in Boiss.

— Cypsela scarcely hairy .................................................................................................. C. rigida Banks & Sol.

11. Cypsela shorter than pappus ............................................................................................. C. antitauri Hayek

— Cypsela longer than pappus ..................................................................................... C. amanicola Hub. -Mor.

12. Pappus coppery in colour ............................................................................................................. C. behen L.

— Pappus colour brownish ............................................................................................................................ 13

13. Cypsela scarcely hairy ................................................................................................ C. haradjianii Wagenitz

— Cypsela glabrous ....................................................................................................................................... 14

14. Cypsela surface smooth ............................................................................................... C. haussknechtii Boiss.

— Cypsela surface reticulate ....................................................................................................... C. spicata Boiss.