FIGURE 6. SEM micrographs. A–H in Paepalanthus (Eriocaulaceae) without scapes and spathes, a survey with the description of a new species

FIGURE 6. SEM micrographs. A–H: Paepalanthus leucocephalus. A. leaf with two types of trichomes: filamentous and malpighiaceous (2 armed) trichomes. B. staminate flower showing bract, calyx, anthophore, corolla and anther. C. pistillate flower showing bract, calyx with two concave sepals and one petal and part of ovary. D. pistillate flower showing one sepal, one petal and gynoecium with style with stigmate branch, lacking nectariferous branch. E. pistillate flower showing detail of the petal and gynoecium. F. detail of the external ovary surface. G. mature seed, seed coat with a reticulate pattern. H. detail of the seed coat showing the cells 4-5 walled. I–N: Paepalanthus scleranthus. I. leaf with two types of trichomes: filamentous and malpighiaceous (2 armed) trichomes. J. adaxial leaf surface showing detail of the filamentous and malpighiaceous trichomes. K. pistillate flower showing bract, one sepal, one petal and gynoecium. L. staminate flower showing calyx, anthophore, corolla and anther. M. pistillate open flower showing two sepals bigger than the two petals and gynoecium with stigmatic branch, lacking nectariferous branches. N. pistillate closed flower showing two concave sepals involving the corolla. (A–C. Andrade 589, D–F. Andrade 625, G–H: Andrade 620, I–J, M. Harley 55538a, K–L, N. Harley 55538b).