Dichotomous: Difference between revisions
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1. branching into two equal structures ([[stem]]s, [[vein]]s, etc.) leading to a "Y."<br><br> | 1. branching into two equal structures ([[stem]]s, [[vein]]s, etc.) leading to a "Y."<br><br> | ||
http://www.science.siu.edu/landplants/Psilophyta/images/Psilotum.young.JPEG |