FIGURE 30 in Taxonomic revision of the genus Calendula (Asteraceae) in the Iberian Peninsula and the Balearic Islands

FIGURE 30. Variability of achene morphology of Calendula. A) C. suffruticosa subsp. greuteri—typical form (Silveira 2983, AVE); B) C. suffruticosa subsp. greuteri—less frequent form (Silveira & Gonçalves 3200, AVE); C) C. tripterocarpa (Silveira 2982, AVE); D) C. arvensis—typical form (Nora in Silveira 3054, AVE); E) C. arvensis—'macroptera' form (Silveira 2985, AVE); F) C. officinalis (Silveira 3058, AVE). Rostrate achenes: A1, A2, B1, B2, D1, E1, F1, F2; cymbiform achenes: A3, C3, C4, D2, D3, E4, F3; sub-cymbiform achenes: B3, B4, F4; bialate achenes: E2, E3; trialate achenes: C1, C2; vermiculate-alate achenes: A4, B5, D4, E5, F5; vermiculate-exalate: C5, D5, E6, F6, F7, F8. All achenes in lateral view, except B3, C2, C3, D2, E2 and F3 in ventral face view, and B4, C4 and D3 in ± dorsal face view. Scale bars = 1 cm.