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jan 1, 1940 - Tatiana Serebriakova

Description:

Serebriakova separates Cannabis into two different species based on their size and shapes. She considered Cannabis sativa to be characterized as tall with large leaves and Cannabis indica as short with small leaves.

She also attributed subspecies to Cannabis sativa and Cannabis indica to distinguish cultivated versus uncultivated varieties.

Added to timeline:

Date:

jan 1, 1940
Now
~ 86 years ago