Which of the following descriptions fits best?
Fraxinus; e.g. F. excelsior
tricolpate; irregularly scabrate to verrucate; exine irregular due to scabrae tricolpate without margo; very regularly reticulate, round, thin walled pollen grain tricolporate with very narrow "sharp" colpi; microreticulate, small and round pollen grain
tricolpate; irregularly scabrate to verrucate; exine irregular due to scabrae
tricolpate without margo; very regularly reticulate, round, thin walled pollen grain
tricolporate with very narrow "sharp" colpi; microreticulate, small and round pollen grain
Continue alphabetically
Next question in random order
last changes: webmaster, 17.3.2003 - home - IPS - UniBern
