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