James Edward Smith,
An introduction to physiological and systematical botany
(1807)
“ Mag. 251, opens its upper, or central, flowers first, contrary to the usual order in its genus; both which instances prove such a diversity to be of small moment. Umbella, an Umbel, for which some authors retain the obsolete old English name of Rundle. In this several flower-stalks, or rays, nearly equal in length, spread from one common centre, their summits forming a level, convex, or even globose surface, more rarely a concave one. When each ray is simple and single-flowered, it is called a simple umbel, as those of Allium ursinum, Engl. Bot. ”
