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2 results for “Kempia”
Text-fig. 43. Scanning electron microscope (SEM) images of monocolpate pollen of Kempia longicolpites gen. et sp. nov. from a fragmentary stamen; Torres Vedras locality, Portugal. a) Holotype; stamen fragment showing elongated pollen sacs that yielded the pollen in this Text-figure; b) Pollen grains showing the very long distal aperture and loosely attached reticulum; c, d) Pollen grains showing the very long, clearly defined distal aperture that extends around the ends of the grain; e) Reticulum in nonapertural region showing the smooth muri loosely attached to the smooth surface of the foot layer by short columellae; f) Internal view of reticulum showing the short columellae loosened from the foot layer. Specimen, TV44-S105018 (holotype). Scale bars 300 Μm (a), 30 Μm (b), 6 Μm (c, d), 3 Μm (e, f). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 43. Scanning electron microscope (SEM) images of monocolpate pollen of Kempia longicolpites gen. et sp. nov. from a fragmentary stamen; Torres Vedras locality, Portugal. a) Holotype; stamen fragment showing elongated pollen sacs that yielded the pollen in this Text-figure; b) Pollen grains showing the very long distal aperture and loosely attached reticulum; c, d) Pollen grains showing the very long, clearly defined distal aperture that extends around the ends of the grain; e) Reticulum in nonapertural region showing the smooth muri loosely attached to the smooth surface of the foot layer by short columellae; f) Internal view of reticulum showing the short columellae loosened from the foot layer. Specimen, TV44-S105018 (holotype). Scale bars 300 Μm (a), 30 Μm (b), 6 Μm (c, d), 3 Μm (e, f).
Text-fig. 30. Scanning electron microscope (SEM) images of anther and pollen of Kempia longicolpites; Catefica locality, Portugal. a) Transverse section through an anther showing the four pollen sacs with in situ pollen; b) Pollen in situ from anther in (a) showing very long colpus and loosely attached reticulum; c) Detail of reticulum showing smooth muri supported by short, scattered columellae; d) Pollen grain from anther in (a) enlarged showing colpus extended beyond the equator and loosely attached reticulum; e) Detail of pollen wall showing thick, homogeneous foot layer, columellae and reticulate tectum; note remains of granular endexine (arrows) in the apertural region of the grain; f) Internal view of reticulum showing the short columellae adhering to the muri detached from the foot layer. Specimen, Catefica 49-S101208 (a–f). Scale bars = 100 Μm (a), 20 Μm (b), 6 Μm (d), 3 Μm (c, e, f). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 30. Scanning electron microscope (SEM) images of anther and pollen of Kempia longicolpites; Catefica locality, Portugal. a) Transverse section through an anther showing the four pollen sacs with in situ pollen; b) Pollen in situ from anther in (a) showing very long colpus and loosely attached reticulum; c) Detail of reticulum showing smooth muri supported by short, scattered columellae; d) Pollen grain from anther in (a) enlarged showing colpus extended beyond the equator and loosely attached reticulum; e) Detail of pollen wall showing thick, homogeneous foot layer, columellae and reticulate tectum; note remains of granular endexine (arrows) in the apertural region of the grain; f) Internal view of reticulum showing the short columellae adhering to the muri detached from the foot layer. Specimen, Catefica 49-S101208 (a–f). Scale bars = 100 Μm (a), 20 Μm (b), 6 Μm (d), 3 Μm (c, e, f).
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