M3I1C3R1O1S1P3O1R1A1N1G2I1U1M3
24 points
MICROSPORANGIUM is validvalid
[n MICROSPORANGIA]
the sporangium in heterosporous plants where the microspores develop [n MICROSPORANGIA]
[n MICROSPORANGIA]
the sporangium in heterosporous plants where the microspores develop [n MICROSPORANGIA]