411 REFERENCE · Wiktionary
Cogn.
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
cogn cogn.
Translingual
Proper noun
A botanical plant name author abbreviation for botanist Célestin Alfred Cogniaux (1841–1916).
Further reading
Author query of the International Plant Names Index
mul Botanical author abbreviations