E1K5T1E1X8I1N1E1S1
20 points
EKTEXINES is validvalid
EKTEXINE, an outer layer of the exine [n]
EKTEXINE, an outer layer of the exine, the tough outer wall of a pollen grain [n]
EKTEXINE, an outer layer of the exine [n]
EKTEXINE, an outer layer of the exine, the tough outer wall of a pollen grain [n]