orthotropous

adjective
or·​thot·​ro·​pous | \ȯr-ˈthä-trə-pəs \

Definition of orthotropous 

: having the ovule straight and upright with the micropyle at the apex

First Known Use of orthotropous

1819, in the meaning defined above

History and Etymology for orthotropous

International Scientific Vocabulary

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The first known use of orthotropous was in 1819

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