Heleborein or Helleborein: How To spell?

The word Heleborein is misspelled against Helleborein, a noun meaning "A poisonous glucoside accompanying helleborin in several species of hellebore, and extracted as a white crystalline substance with a bittersweet taste. It has a strong action on the heart, resembling digitalin."

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