umbellar, umbellal

[Eng. umbel; -ar, al.] Of or pertaining to an umbel; having the form of an umbel. *um-běl-lā-tæ, s. pl . [Fem. pl. of Mod. Latin umbel lat us , from Lat. umbella (q. v.).] Botany : The twenty-second order in Linnæus's Natural System, corresponding to the present Umbelliferæ (q. v.).