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Anther wall development, microsporogenesis, and microgametogenesis in abolboda and orectanthe: contributions to the embryology of xyridaceae (poales)
(Univ Chicago Press, 2015-05-01)
Premise of research. Xyridaceae includes two subfamilies with a total of five genera. Xyridoideae has only the single genus Xyris, and Abolbodoideae includes the remaining genera. The inter- and intrafamilial relationships ...
Pollen morphology of Rubiaceae from Cerrado forest fragments: Pollen unit, polarity and diversity of the types of apertures
(2020-01-01)
The pollen morphology of 23 Brazilian native species of Rubiaceae Juss. from forest fragments of a Cerrado area was analyzed using light microscopy (LM) and scanning electron microscopy (SEM), in the search for new characters ...
Morphology and tructure of the pollen cone and pollen grain of the Araucaria species from Argentina
(Instituto de Histología y Embriología, 2008-12)
The pollen cone and the pollen grain of the two Argentinean species of Araucaria are described with LM, SEM and TEM. Primordia of pollen cones are formed in April and May and reach maturity by mid-October in A. angustifolia ...
Pollen morphology of Bignoniaceae from Brazilian forest fragments and its systematic significance
(2019-04-03)
Bignoniaceae Juss. are widely distributed in tropical and subtropical regions. Most of their Neotropical species have a climbing habit, which makes the family one of the most ecologically important in the Americas. This ...
Systematic position of Xyris: Flower and seed anatomy
(1999-01-01)
Flower anatomy, embryology, and seed anatomy are described for some Brazilian species of Xyris section Nematopus and reviewed with respect to the systematic position of Xyris and allied taxa in Commelinanae. Apart from ...
Anther development, microsporogenesis and microgametogenesis in Heliconia (Heliconiaceae, Zingiberales)
(Elsevier B.V., 2007-01-01)
Anther development, micro sporogenesis and microgametogenesis in several species of Heliconia were investigated as part of a complementary embryological study of the Heliconiaceae. All studied Heliconia species present ...
Anther development, microsporogenesis and microgametogenesis in Heliconia (Heliconiaceae, Zingiberales)
(Elsevier B.V., 2007-01-01)
Anther development, micro sporogenesis and microgametogenesis in several species of Heliconia were investigated as part of a complementary embryological study of the Heliconiaceae. All studied Heliconia species present ...