| Taxa | Exine pattern | lumina shape | Amb | Colpi ends | Pollen class | Pollen size (µm) | Polar axis (µm) | Equator diameter (µm) | Exine (µm) | Colpus length (µm) | Ora size (µm) | PA/ED % |
1. | M. barombiensis | Reticulate | Round- angular | Round | Acute/ round/ open | Sub- prolate | 10 - 25 | 21.0 - 27.5 24.4 ± 0.59 | 15.0 - 20.0 17.1 ± 0.46 | 0.50 - 0.75 0.61 ± 0.03 | 15.5 - 18.2 16.9 ± 0.28 | 5.4 | 142 |
2. | M. iodocarpa | Reticulate | Round elongated | Round | Acute/ round | Prolate | 10 - 25 | 19.2 - 20.0 19.7 ± 0.17 | 12.8 - 17.0 14.8 ± 0.21 | 0.75 - 1.25 1.00 ± 0.01 | 15.0 - 16.5 15.7 ± 0.16 | 8.5 | 134 |
3. | M. coriacea | Reticulate | Round elongated | Round | Acute/ round/ open | Prolate | 10 - 25 | 20.0 - 23.7 21.8 ± 2.35 | 15.0 - 17.5 16.2 ± 1.25 | 1.25 - 1.50 1.32 ± 0.04 | 15.7 - 18.0 16.4 ± 1.79 | 10.0 | 134 |
4. | M. africana | Reticulate | Round- angular | Trilobed | Acute/ round | Prolate | 10 - 25 | 17.5 - 20.3 19.8 ± 1.15 | 10.0 - 15.0 14.7 ± 0.86 | 1.00 - 1.25 1.21 ± 0.06 | 17.5 - 17.7 17.5 ± 0.81 | 7.5 | 134 |
5. | M. malacocarpa | Reticulate | Round- angular | Round | Acute/ round/ open | Sub- prolate | 10 - 25 | 18.7 - 25.0 21.8 ± 1.11 | 16.2 - 18.7 17.4 ± 0.78 | 0.75 - 1.00 0.86 ± 0.06 | 17.5 - 18.0 17.7 ± 0.72 | 12.5 | 125 |
6. | M. oligoneura | N.A | N.A | N.A | N.A | N.A | N.A | N.A | N.A | N.A | N.A | N.A | N.A |