umbellal, a. Bot.
[Cf. prec. and -al1.]
Consisting of plants with umbellate flowers.
| 1836 Lindley Nat. Syst. Bot. (ed. 2) 21 A plant of the Umbellal alliance. 1846 ― Veg. Kingd. 773 Umbellal Exogens, with didymous fruit, and a double epigynous disk. |