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Angiosperm pollen grains from the Cuayuca Formation (Late Eocene to Early Oligocene), Puebla, Mexico
(Coquina Press, 2015-01)
Systematic descriptions and illustrations of the best preserved angiosperm pollen
grains (Monocotyledonae or Liliopsida: n= 7 and Dicotyledonae or Magnoliopsida: n=
41) recovered from Cuayuca Formation (late Eocene-early ...
Late Aptian angiosperm pollen grains from Patagonia: earliest steps in flowering plant evolution at middle latitudes in southern South America
(Elsevier, 2015-08)
The angiosperm pollen record from the Anfiteatro de Ticó and Punta del Barco formations (Baqueró Group) is reported. The relevance of these floras is that they are accurately dated as late Aptian, and one of the oldest ...
Pollen types of Sapindaceae from Brazilian forest fragments: apertural variation
(Soc Botanica Brasil, 2020-04-01)
Morphological variations in angiosperm pollen grains may aid in the differentiation of families, genera and species. Sapindaceae pollen morphology holds promise for the recognition of taxa of this cosmopolitan family, which ...
Cretaceous angiosperm pollen from the Kachaike Formation, south-western Santa Cruz Province, Argentina
(Taylor & Francis, 2015-07)
Thirty-three angiosperm pollen species are here reported from mid-Cretaceous deposits of the Kachaike Formation, Austral Basin, southern Argentina. Clavatipollenites is the most abundant angiosperm genus, with six well-defined ...
Palynostratigraphic study of the Early Cretaceous Río Mayer and Kachaike formations at the Quebrada El Moro Section, Austral Basin, southwestern Argentina
(Academic Press Ltd - Elsevier Science Ltd, 2012-04)
Palynomorph assemblages have been recovered from the upper levels of the Río Mayer Formation and the basal levels of the Kachaike Formation exposed at the Puesto El Moro Creek, southwest of Santa Cruz Province, Argentina. ...
Reproductive biology in the primitive relic Angiosperm Drimys brasiliensis (Winteraceae)
(1980-03-01)
From field observations on Drimys brasiliensis, principally in the Botucatu region of São Paulo State, Brazil, new data on the reproductive biology, the rhythm of growth, and the development of lateral cymose inflorescences, ...
Reproductive biology in the primitive relic Angiosperm Drimys brasiliensis (Winteraceae)
(1980-03-01)
From field observations on Drimys brasiliensis, principally in the Botucatu region of São Paulo State, Brazil, new data on the reproductive biology, the rhythm of growth, and the development of lateral cymose inflorescences, ...
It's a matter of timing: asynchrony during pollen development and its consequences on pollen performance in angiosperms
(Springer Wien, 2017-01)
Functional pollen is needed to successfully complete fertilization. Pollen is formed inside the anthers following a specific sequence of developmental stages, from microsporocyte meiosis to pollen release, that concerns ...
POLLEN INSIGHTS INTO APOMICTIC AND SEXUAL MICONIA (MICONIEAE, MELASTOMATACEAE)
(Univ Chicago PressChicagoEUA, 2013)