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It had long been my wish for an opportunity to collect more MiddleDevonian plants in the Tiaomachien series in central Hunan.InDecember 1936,I was able to realize my plans.I was fortunate enough
It had long been my wish for an opportunity to collect more Middle Devonian plants in the Tiaomachien series in central Hunan. December 1936, I was able to realize my plans. I was fortunate enough