Umbelar or Umbellar: How To spell?
The word Umbelar is misspelled against Umbellar, an adjective meaning "pertaining to an umbel; having the fm an umbel."
Umbellar has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings umbe & ar which should not be misspelled with single 'L'
Wrong Spelling:  umbe-l-ar  Correct Spelling:  umbe-ll-ar 
Explore spell check of Umbellar to spell without errors.