Havstoria or Haustoria: How To spell?

The word Havstoria is misspelled against Haustoria, which is plural of "Haustorium"

Word contains consecutive vowels 'AU' in between alphabets h & storia is misspelled as 'AV'
Wrong Spelling:  h-av-storia 
Correct Spelling:  h-au-storia 
Find more incorrect spellings of Haustoria to spell right way.

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