Fig. 3. Flower micromorphology. A–I. Psyllocarpus itakangapyra Sobrado, J.A.M.Carmo & R.M in Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil

Fig. 3. Flower micromorphology. A–I. Psyllocarpus itakangapyra Sobrado, J.A.M.Carmo & R.M.Salas sp. nov.; P.L. Viana et al. 4415 (CTES). A. Flower bud. B. Papillate external surface of the corolla. C. Hypanthium, calyx, style, and stigma. D. Detail of style and stigma. E. Opened corolla. F. Papillate internal surface of the corolla lobes. G. Moniliform trichomes at internal surface of the corolla. H. Nectariferous disk, top view. I. Detail of striate nectariferous disk cells and functional stomata. J–R. P. vianae Sobrado, J.A.M.Carmo & R.M.Salas sp. nov.; P.L. Viana et al. 5887 (CTES). J. Flower bud. K. Papillate external surface of the corolla. L. Hypanthium, calyx, style, and stigma. M. Detail of style and stigma. N. Opened corolla. O. Papillate internal surface of the corolla lobes and moniliform trichomes. P. Inner wall of a dehiscent anther, showing the prescence of orbicules. Q. Nectariferous disk, top view. R. Detail of striate nectariferous disk cells. Scale bars: A, C, E, J, L, N 200 µm; B, G, K, R = 20 µm; D, F, M = 50 µm; H, O, Q = 100 µm; I = 10 µm; P = 2 µm.