Table 1 in Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae)

Table 1. Qualitative and quantitative morphological characters of pollen for the representative species in the tribe Hylocereeae. Spinule length and perforation diameter are coded based on the simple gap method by Almeida and Bisby (1984). PE ratio =Polar axis/Equatorial Diameter; PAI ratio =Apocolpium/Equatorial diameter in polar view (Polar Area Index); Amb: Outline in polar view. Spinule length (0 = 0 µm, 1 = 0.33-0.78 µm, 2 = 1.27-1.86 µm); Perforation diameter (0 = 0.11-0.18 µm, 1 = 0.23-0.72 µm). P=present, A=Absent.
SpeciesPE ratioShape classPAI ratioPA typeAmbPollen typeApertureMargoNo of colpusSpninulesSpinule lengthPerforation diameterAcanthocereus chiapensis1.30Subprolate0.32MediumCircularLargeColpateA3P21Acanthocereus tetragonus0.97Oblate-spheroidal0.41MediumCircularLargeColpateA3P21Aporocactus martianus1.15Subprolate0.36MediumCircularVery LargeColpateA3P21Disocactus ackermanii1.19Subprolate0.34MediumCircularVery LargeColpateA3P21Disocactus speciosus1.13Prolate-spheroidal0.35MediumCircularVery LargeColpateA3P21Epiphyllum oxypetalum1.07Prolate-spheroidal0.32MediumCircularLargeColpateA3P21Epiphyllum thomasianum0.90Oblate-spheroidal0.47MediumCircularLargeColpateA3P21Kimnachia ramulosa1.07Prolate-spheroidal0.05SmallCircularLargeColpateA15P10Pseudorhipsalis amazonica0.99Oblate-spheroidal0.63LargeCircularLargeColpateP12P10Selenicereus alliodorus1.12Prolate-spheroidal0.41MediumCircularLargeColpateA3P21Selenicereus costaricencis1.18Subprolate0.38MediumCircularLargeColpateA3P21Selenicereus escuintlensis0.97Oblate-spheroidal0.37MediumCircularLargeColpateA3P21Selenicereus glaber1.05Prolate-spheroidal0.61LargeConvex quadrangularLargeColpateA12P21Selenicereus grandiflorus1.07Prolate-spheroidal0.37MediumCircularVery LargeColpateA3P21Selenicereus guatemalensis1.04Prolate-spheroidal0.31MediumCircularLargeColpateA3P21Selenicereus hamatus1.06Prolate-spheroidal0.37MediumCircularLargeColpateA3P21Selenicereus megalanthus1.01Prolate-spheroidal0.40MediumCircularVery LargeColpateA3P21Selenicereus minutiflorus0.87Suboblate0.60LargeCircularLargeColpateA3A01Selenicereus monacanthus1.11Prolate-spheroidal0.34MediumCircularLargeColpateA3P21Selenicereus ocamponis1.17Subprolate0.31MediumCircularVery LargeColpateA3P21Selenicereus polyrhizus1.07Prolate-spheroidal0.34MediumCircularLargeColpateA3P21Selenicereus setaceus1.10Prolate-spheroidal0.34MediumCircularVery LargeColpateA3P21Selenicereus sp.1.11Prolate-spheroidal0.35MediumCircularLargeColpateA3P21Selenicereus stenopterus1.17Subprolate0.38MediumCircularLargeColpateA3A01Selenicereus triangularis0.91Oblate-spheroidal0.45MediumCircularLargeColpateA3P21Selenicereus undatus1.04Prolate-spheroidal0.40MediumCircularLargeColpateA3P21Weberocereus tunilla1.07Prolate-spheroidal0.57LargeConvex quadrangularLargeColpateA12, 15P21