![images/Basidia_polymorphic_no/Basidia_polymorphism-no.jpg](images/Basidia_polymorphic_no/Basidia_polymorphism-no.jpg)
Assess this feature on a squash preparation of a lamella. Look for basidia of markedly different size.
The number of sterigmata on basidia can also vary: see Basidium sterigmata number.
Choose this state if: mature basidia do not occur in several size classes.