Tetraphylous or Tetraphyllous: How To spell?
The word Tetraphylous is misspelled against Tetraphyllous, an adjective meaning "Having four leaves; consisting of four distinct leaves or leaflets."
Tetraphyllous has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings tetraphy & ous which should not be misspelled with single 'L'
Wrong Spelling:  tetraphy-l-ous  Correct Spelling:  tetraphy-ll-ous 
Check more misspelled words of Tetraphyllous to spell it correct.