Claim · model-written summary
Hoplestigma pollen has 3-colporate apertures bordered by six meridional ridges separated by three intercolpar concavities.
- Taxon
- HoplestigmaHoplestigmae0
- Outcome
- pollen with 3‐colporate apertures bordered by (six) meridional ridgese0
Verbatim
e0“Hoplestigma has pollen with 3‐colporate apertures bordered by (six) meridional ridges that are separated by (three) intercolpar concavities”
Title
POLLEN MORPHOLOGY AND THE RELATIONSHIPS OF HOPLESTIGMATACEAE
Joan W. Nowicke; James S. Miller Taxon 1989. doi:10.2307/1220882
Other claims from this paper (7)
- Observation Pollen similar in SEM and TEM to that of Hoplestigma is found in Bourreria and Ehretia of the Boraginaceae.
- Observation This pollen type is also common in the Myrtales.
- Observation The Hoplestigma pollen type is not known to occur in either the Violales or the Ebenales.
- Observation The bicarpellate ovary with few ovules and the sympetalous corolla of Hoplestigma are not really typical of the Violales.
- Observation The parietal placentation of Hoplestigma is not typical of the Ebenales.
- Observation Hoplestigma differs from Myrtales in having petals united basally and unitegmic ovules, whereas Myrtales have distinct petals and bitegmic ovules.
- Recommendation Until Hoplestigmataceae is examined for internal phloem, the authors defer to Takhtajan's placement of the family in the Boraginales.