FIGURE 4 in Mixtecalia, a new monotypic genus of the subtribe Tussilagininae (Senecioneae, Asteraceae) from the state of Oaxaca, Mexico

FIGURE 4. Microcharacters of Mixtecalia teitaensis. A. Tomentose indumentum of a fragmented leaf. B. Adaxial surface of leaves with tomentose indumentum under SEM. C. Flagelliform trichomes (ft) on the leaf abaxial surface. D. Base of capitula showing the peduncle and calyculus bracts (marked by asterisk *), with indumentum tomentose. E. Phyllary. F. Receptacle flat alveolate. G. Cypsela with sericeous indumentum. H. Corolla lobe apex. I. Details of the corolla lobe apex with papillae (p) under SEM. J. Androecium with filaments fused at the base (asterisk *). K. Anther bases with cylindrical collars. L. Details of the anther showing the polar endothecial tissue (marked by asterisks *). M. Style branches showing obtuse apexes and papillose indumentums. N. Style branch under MEB. O. Detail of style branch apex with papillae (p) on both surfaces.