FIGURE 6. Androcalymma glabrifolium. SEM images. A in Unraveling the Enigma of Androcalymma (Fabaceae: Dialioideae): The Rediscovery of a Critically Endangered Legume Genus in the Heart of the Amazon

FIGURE 6. Androcalymma glabrifolium. SEM images. A. Flower bud; B–C. Flower in pre-anthesis with the perianth removed. Note the anthers covering the gynoecium but not yet inflexed; D. side view of anther still closed; E. Front and side view of a stamen at anthesis, note the inflexed anthers. F. Detail of anther with the two open pores; G. Detail of the anther still closed. H Filament with anther removed and apiculate apex; I. Detail of anther surface showing uncinate trichomes and stomata; J. Polar and equatorial view of the pollen grains; K. Side view of the carpel; L. side view of a young fruit, note the reduced wing forming at the left; M. Detail of the ovules; N. Detail of carpel surface showing uncinate and straight trichomes; O. Detail of the stigma and short style; P. Detail of the receptacle with petals, stamens and carpel removed. Note the shallow hypanthium. Scale bar. A–B, E, K–L: 500 µm; C, P: 200 µm; D, F–H, M, O: 100 µm; I: 20 µm; J: 2 µm; N: 50 µm. A–P: Falcão, M.J. 265; Photos: M. Falc"o.