umbellate, a.
(ˈʌmbɛlət)
[ad. mod.L. umbellāt-us, f. L. umbella parasol, umbella: see -ate2. So Sw. umbellat, F. ombellé.]
1. Bot. a. Of flowers: Forming, arranged in, an umbel or umbels.
| 1760 J. Lee Introd. Bot. i. xix. (1765) 50 An Umbellate Flower is an aggregate one, consisting of many Florets placed on a Receptacle, on fastigiate Peduncles that are all produced from the same point. 1793 [see umbelled a.]. 1807 J. E. Smith Phys. Bot. 239 Its ultimate terminations are sometimes obscurely umbellate, especially while in blossom. 1826 G. Samouelle Direct. Collect. Insects & Crust. 28 Alighting on the blossoms of trees and shrubs, and particularly on flowers of the umbellate kind. 1872 Oliver Elem. Bot. ii. 184 Common Ivy... A climbing evergreen shrub, with..inconspicuous umbellate flowers. |
b. Of plants: Having flowers in umbels.
| 1785 Martyn Lett. Bot. v. (1794) 53 This then is the proper character of the umbellate tribe. 1822–7 Good Study Med. (1829) I. 174 The umbellate order affords also a rich variety of carminatives. |
2. Zool. Provided with, or forming, an umbel; umbelliferous; umbelliform.
| 1870 [see umbel 2]. |
Hence ˈumbellately adv., in umbels.
| 1887 Garnsey & Balfour tr. De Bary's Fungi v. 153 A creeping endophytic mycelium and straight erect simple sporophores ending in umbellately arranged heads of basidia. |