FIG. 6 in Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)

FIG. 6. — Non-osmophoric papillae in genera of Onoserideae: A, sinus between two lobes of the central corolla in Aphyllocladus denticulatus Hieron., showing papillae with negative reaction for starch test (IKI); B, two lobes of the central corolla in Gypothamnium pinifolium Phil., with apical and marginal papillae, several of them secreting drops (arrow) and negatively reacting for starch test (IKI); C, lobe of the central corolla in Lycoseris trinervis (D. Don) S.F. Blake, note the papillae with lipophilic content (ORO); D, tooth margin of the marginal corolla in Onoseris hastata Wedd., note the papillae with lipophilic content (ORO); E, lobe apex of the central corolla in Urmenetea atacamensis Phil., note the short, rounded papillae with striate cuticle (NR). A, Ricardi 3674 (LP); B, Roig Juñent 22 (LP); C, Sagástegui 6867 (LP); D, Fabris 6157 (LP); E, Cabrera et al. 22543 (LP). Scale bars: A, 100 µm; B, 250 µm; C-E, 50 µm.