Sakugoro Hirase observed swimming sperm (motile spermatozoids) for the first time in the seeds of a female Ginkgo tree growing in the Botanical Garden of the University of Tokyo in Japan  on September 9, 1896. Hirase proved that the Ginkgo had an intermediate position between ferns and conifers and therefore Professor M. Engler established a new family Ginkgoacea (1897), order Ginkgoales (1898).

Sakugoro Hirase observed swimming sperm (motile spermatozoids) for the first time in the seeds of a female Ginkgo tree growing in the Botanical Garden of the University of Tokyo in Japan on September 9, 1896. Hirase proved that the Ginkgo had an intermediate position between ferns and conifers and therefore Professor M. Engler established a new family Ginkgoacea (1897), order Ginkgoales (1898).

Common Fall Season Spiders-Maryland Extension

Common Fall Season Spiders-Maryland Extension

Looking up through a fall aspen tree. (Photo submitted by Casey Schroeder)

Looking up through a fall aspen tree. (Photo submitted by Casey Schroeder)

Ginkgo Seeds | ginkgo seeds

Ginkgo Seeds | ginkgo seeds

From Beech to Maple: Fall Foliage in Ohio

From Beech to Maple: Fall Foliage in Ohio

Minnesota fall colors ... best in the world? It's possible

Minnesota fall colors ... best in the world? It's possible

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