S1P3O1R1O1P3O1L1L1E1N1I1N1S1
18 points
SPOROPOLLENINS is validvalid
SPOROPOLLENIN, [n]
SPOROPOLLENIN, a polymer that comprises the exine (outer layer of the wall) of spores and pollen grains [n]
SPOROPOLLENIN, [n]
SPOROPOLLENIN, a polymer that comprises the exine (outer layer of the wall) of spores and pollen grains [n]