ケラトステマ属(ツツジ料スノキ連)の花粉:セプタムのない四集粒 Pollen of Ceratostema (Ericaceae, Vaccinieae) : tetrads without septa
The pollen morphology of two species of the Neotropical genus Ceratostema (Ericaceae) was examined by light, scanning and transmission electron microscopy. The Ceratostema species examined have 3-colporate pollen grains united in permanent tetrahedral tetrads that show a common condition encountered in the Ericaceae. But the septal exine was absent between two neighboring grains in each pollen tetrad of Ceratostema. The pollen tetrads without septa are the first report for the Ericaceae as well as other angiosperm families.
- Journal of plant research
Journal of plant research 119(6), 685-688, 2006-11-01