— orthostichous , adj.
/awr thos"ti kee/ , n. , pl. orthostichies . Bot.
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.
[ 1870-75; ORTHO- + Gk -stichia alignment, equiv. to stích ( os ) row (see STICH 1 ) + -ia -Y 3 ]