The Green Umbrella
about Plants & Trees and their Green World
November 27, 2009
Ode to a great plant taxonomist
Armen Leonovich Takhtajan or Takhtajian, one of the most influential plant taxonomist of the 20th century who pioneered the "Takhtajan system" of flowering plant classification passed away on November 13, 2009 at the age of 99.
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