Table IX.
Subtribe, genus | Polarity, aperture | Size, shape, outline in e.v. and p.v.a | Equatorial apices | Margo | Further exine features (LM, SEM) | Sculpturing |
---|---|---|---|---|---|---|
Erianthemum | Isopolar, syn(3)colpate | Small to medium, distinctly oblate, slightly emarginate, concave-triangular | Obcordate | Distinct, broadening at equator, sometime with small triangular protrusions at pole | LM: nexine with triangular intercolpial thickenings | CM: nano-verrucate to granulate MC: nano-verrucate M: psilate, partly nano-verrucate to granulate |
Globimetula | Isopolar, syn(3)colpate | Medium, distinctly oblate, emarginate, concave-triangular to trilobate | Obcordate | Distinct, broadening at equator | LM: nexine hexagonally thickened in polar area; sexine markedly thickened in MC | CM, MC: nano-verrucate to granulate M: psilate to micro-verrucate, granulate |
Moquiniella | Isopolar, zono(3)colpate | Medium, distinctly oblate, slightly emarginate, concave-triangular | Obcordate | Distinct | LM: nexine thickened in polar area | CM: ? MC: nano-verrucate to granulate M: psilate |
Phragmanthera | Isopolar, syn(3)colpate | Medium, oblate, elliptic, concave-triangular to trilobate | T-shaped | Distinct, covering the entire apices, can show intercolpial triangular build-ups at the pole | LM: nexine with triangular intercolpial thickenings | CM, MC: nano-verrucate to granulate M: psilate, partly granulate |
Note: Abbreviations: e.v., equatorial view; p.v., polar view; p.f., proximal face; d.f., distal face; LM, light microscopy; SEM, scanning electron microscopy; CM, colpus membrane; MC, mesocolpium; M, margo; a Size: small, <25 µm; medium, 25–50 µm; shape: oblate, less than two-times wider than high; distinctly oblate, more than two-times wider than high.