[1] : The Collaborative International Dictionary of English v.0.48

umbellularia \umbel`lula"ria\, prop. n. nl. see
   umbellule. zool.
   a genus of deep-sea alcyonaria consisting of a cluster of
   large flowerlike polyps situated at the summit of a long,
   slender stem which stands upright in the mud, supported by a
   bulbous base.
   1913 webster
see also:
umbellule 

[2] : WordNet (r) 2.0

umbellularia
     n : aromatic evergreen trees of pacific coast syn: genus
         umbellularia
see also:
genus umbellularia 

Umbellularia >> U Words
Umbellularia, definition of term: Umbellularia
umbellularia_pag1.html