observée <lb xmlns="http://www.tei-c.org/ns/1.0" />à <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0008236 https://www.geonames.org/498817">Pétersbourg</placeName> <orgName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0016789 http://d-nb.info/gnd/7655437-5">Jardin <choice> <abbr>bot</abbr> <expan>botanique</expan> </choice><supplied cert="high">,</supplied> </orgName> <lb xmlns="http://www.tei-c.org/ns/1.0" />le <date xmlns="http://www.tei-c.org/ns/1.0" when="1829-12-06" calendar="#gregorian">6 <choice> <abbr>Déc.</abbr> <expan>Décembre</expan> </choice> 1829</date><supplied xmlns="http://www.tei-c.org/ns/1.0" cert="high">,</supplied> conjointe<lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />ment avec <choice xmlns="http://www.tei-c.org/ns/1.0"> <abbr>Mr</abbr> <expan>Monsieur</expan> </choice> <persName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0001522 https://d-nb.info/gnd/116615168">Kupfer</persName>