Stahl, Horatio Seymour2015-11-062015-11-061910http://hdl.handle.net/10919/6395316, [2] leavesapplication/pdfen-USCreative Commons Public Domain Mark 1.0LD5655.V855 1910.S734Podophyllum -- ReproductionSpermatogenesis in plantsA study of spermatogenesis in Podophyllum: including laboratory methods of preparationThesis