Centaurea gigantea subsp. gigantea

Negaresh, Kazem & Rahiminejad, Mohammad Reza, 2018, A revision of Centaurea sect. Cynaroides (Asteraceae, Cardueae-Centaureinae), Phytotaxa 363 (1), pp. 448-450 : 448-450

12a. Centaurea gigantea subsp. gigantea ( Fig. 27 )

Involucres truncate at base, 30–35 × (20–) 25–30 mm; appendages elongate triangular; spine 5–13 mm long; achenes 5.5–7 mm long; pappus (5–) 8–10 mm long.

Chromosome numbers: — Askoy et al. (2016) reported the chromosome number 2 n = 2 x = 18 for Centaurea gigantea collected from Turkey, Yüksekova (Hakkari). This is the only count for this taxon.

Selected specimens examined:— IRAQ. Prov. Arbil: Handren mountains near Rawanduz , 1300 m, Bornmüller 1490 ( B!) ; in montibus between Arbil and Rawanduz , 700 m, Bornmüller 1491 ( B!) ; between Dokan and Mirza Rustam , 1200 m, 28 July 1957, Rechinger 10988 ( W!) ; Chiya-I Mandau prope Walash , 1050 m, Guest 2673 ( K!) . Prov. Sulaymaniyah: between Sulaymaniyah and Dokan , 700 m, Rechinger 12482 ( W!) ; between Sulaymaniyah and Qara Dagh , 24 June 1957, Haines 1314 ( E!) ; Qara Dagh , 1500 m, 9 August 1957, Haines 1244 ( E!) . Prov. Kirkuk: E Chamchamal , Rechinger 10061 ( W!) . Prov. Mosul: 18 km E Duhok toward Amadiyah , 800 m, Rechinger 11531 ( B!) ; Suwara Tuka , in apertis quercetorum, 1200 m, 1956, Rechinger 15817 ( E!) ; in faucibus Mazurka prope Amadiyah , 1500 m, Guest 15817 ( K!) . TURKEY. C9 Hakkari: Çölemerik , 1700 m, 17 August 1954, Davis 24514 ( E!) ; Semdinli Yüksekova aras, 1840 m, 29 July 1978, Baytop et al. 41318 ( ISTE!) .

Figures

FIGURE 27. Centaurea gigantea Schultz Bipontinus ex Boissier subsp. gigantea (Kotschy 349, G).