orthostichy

orthostichy

[awr-thos-ti-kee]
noun, plural orthostichies. Botany.
1.
a vertical rank or row.
2.
an arrangement of members, as leaves, at different heights on an axis so that their median planes coincide.

Origin:
1870–75; ortho- + Greek -stichia alignment, equivalent to stích(os) row (see stich1) + -ia -y3

orthostichous, adjective
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World English Dictionary
orthostichy (ɔːˈθɒstɪkɪ)
 
n , pl -chies
1.  an imaginary vertical line that connects a row of leaves on a stem
2.  an arrangement of leaves so connected
 
[C19: from ortho- + Greek stikhos line]
 
or'thostichous
 
adj

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