Seerospore or Seirospore: How To spell?

The word Seerospore is misspelled against Seirospore, a noun meaning "One of several spores arranged in a chain as in certain algae of the genus Callithamnion."

Word contains consecutive vowels 'EI' in between alphabets s & rospore is misspelled as 'EE'
Wrong Spelling:  s-ee-rospore 
Correct Spelling:  s-ei-rospore 
Find more incorrect spellings of Seirospore to spell right way.