Phylocyst or Phyllocyst: How To spell?

The word Phylocyst is misspelled against Phyllocyst, a noun meaning "The cavity of a hydrophyllium."

Phyllocyst has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings phy & ocyst which should not be misspelled with single 'L'
Wrong Spelling:  phy-l-ocyst 
Correct Spelling:  phy-ll-ocyst 
Find more incorrect spellings of Phyllocyst to spell right way.