A variant or corrupted spelling of herbariums; the English plural form of herbarium.
This appears to be a misspelling or variant of 'herbariums,' possibly combining 'herbaria' and 'herbariums' or showing phonetic spelling variations from historical documents.
Spelling variants like this flourished before the Oxford English Dictionary standardized botanical terminology—older texts show scientists literally inventing plurals as they wrote, reflecting how young plant science really was.
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