11. "Phellinus tremulae " spreads through airborne basidiospores . 12. The basidiospores are spherical to ellipsoid, distinctive of the family Bondarzewiaceae. 13. After landing in an open floret, the teliospores give rise to basidiospores . 14. The basidiospores recovered with the fruiting body were examined during the SEM study. 15. Basidiospores germinate on seedlings, and each hypha undergoes plasmogamy with a compatible hypha.16. This leads to production of basidia and basidiospores . 17. When released the basidiospores may infect new mustard plants, completing the life cycle. 18. These fruit bodies produce peridioles containing the basidia upon which new basidiospores are made. 19. These fruiting bodies produce peridioles containing the basidia upon which new basidiospores are made. 20. These germinate to form a transversely-septate basidia that bears two large basidiospores .
