Shelbark or Shellbark: How To spell?
The word Shelbark is misspelled against Shellbark, a noun meaning "A species of hickory (Carya alba) whose outer bark is loose and peeling; a shagbark; also, its nut."
Shellbark has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings she & bark which should not be misspelled with single 'L'
Wrong Spelling:  she-l-bark  Correct Spelling:  she-ll-bark 
Explore spell check of Shellbark to spell without errors.