The word Pericheytia is misspelled against Perichaetia, which is plural of "Perichaetium"
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Perichaetia has vowels 'ae' together mispronounced as 'ey'
Word contains consecutive vowels 'AE' in between alphabets perich & tia is misspelled as 'EY'
Wrong Spelling:  perich-ey-tia 
Correct Spelling:  perich-ae-tia 
Find more wrongly spelled words of Perichaetia to spell it well.