POLLEN MORPHOLOGY AND THE RELATIONSHIPS OF THE CORYNOCARPACEAE

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Abstract
Summary: The pollen of seven collections representing three of the four species of Corynocarpus (the only genus in the family) has been examined in LM and SEM, and one species examined in TEM. If the colpi are meridionally oriented, then the pollen of Corynocarpaceae is weakly heteropolar, 2‐colporate, with a mostly psilate exine, and an unstratified or poorly differentiated exine structure. This highly distinctive pollen has no known counterpart in either the Celastrales or Ranunculales, two orders to which the family has been assigned. Corynocarpus pollen is similar to that of the saxifragaceous genus Itea, which is also illustrated in SEM and TEM.