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Pine pollen - 40x objective - UWDC - UW-Madison Libraries
Pollen grain showing generative cell inside of tube cell of Lilium - UWDC - UW-Madison Libraries
Pine pollen fixed and stained all cells visible - 40x and 100x objectives - UWDC - UW-Madison Libraries
American Chestnut tree - UWDC - UW-Madison Libraries
White spruce - scanned branch with young ovulate and pollencones - UWDC - UW -Madison Libraries
Microsporangium of pine - UWDC - UW-Madison Libraries
Tilia stems : cross sections of one, two and three-year old stems - UWDC - UW-Madison Libraries
Ceiba pentandra - UWDC - UW-Madison Libraries
2-celled pollen grain of lily - UWDC - UW-Madison Libraries
Red pine bough - UWDC - UW-Madison Libraries
Red pine bough with mature microsporangiate strobil - UWDC - UW-Madison Libraries