Scientist using special magnifying glasses to inspect lily seedlings for size of stomates on under side of leaves which often reveal when chromosomes have been doubles with colchicine

Scientist using special magnifying glasses to inspect lily seedlings for size of stomates on under side of leaves which often reveal when chromosomes have been doubles with colchicine, MS0242-008823. National Agricultural Library Special Collections. http://localhost:8081/repositories/4/digital_objects/5593 Accessed September 01, 2026.