Spermatozoids of Cycas revoluta

Spermatozoids of Cycas revoluta

Spermatozoids of Cycas revoluta Thunberg ware discovered by Associate Prof. Seiichiro Ikeno, College of Agriculture, University of Tokyo in 1896, almost simultaneously with the discovery of spermatozoids in Ginkgo biloba L. by Sakugoro Hirase. These findings of gymnospermous spermatozoids were outstanding achievements in the early period of modern botanical research in Japan. This plant is an offshoot of the plant examined by Prof. Ikeno, which is now conserved in situ in the Kagoshima Prefectural Museum.