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Link: • Carl Linnaeus to René-Antoine Ferchault de Réaumur, 16 August 1754 n.s.
Dated 1754 d: 16. August. Sent from Uppsala (Sweden) to Paris (France). Written in Latin.


During his stay in Paris Linnaeus noticed that the Apollo butterfly, Papilio alpicola, described in his own Fauna SvecicaLinnaeus, Carl Fauna Svecica
sistens animalia Sveciae regni:
quadrupedia, aves, amphibia, pisces,
insecta, vermes, distributa per classes
& ordines, genera & species. Cum
differentiis specierum, synonymis
autorum, nominibus incolarum, locis
habitationum, descriptionibus
(Stockholm, 1746).
Soulsby no. 1151.
and Charles De GeerísDe Geer, Charles (1720-1778).
Swedish. Entomologist and natural
history collector, Leufsta Bruk. Member
of the Royal Swedish Academy of Sciences
in Stockholm and Académie des
sciences, Paris. Corresponded with
Réaumur, Bonnet and other
naturalists. Husband of Catharina
Charlotta Ribbing and father of Emanuel
De Geer. Correspondent of Linnaeus.
work [Linnaeus refers to Memoires pour servir a l'histoire des insectesDe Geer, Charles Memoires
pour servir a l'histoire des
, 8 vol. (Stockholm
], could not be found there. This was also confirmed by Obriet [Claude AubrietAubriet, Claude (1651-1743).
French. Accompanied Joseph Pitton de
Tournefort on his travels to the Orient.
]. This summer Linnaeus has bred several larvae which easily became pupae and butterflies. Now he has eggs from a couple and he sends them all to René-Antoine Ferchault de RéamurRéaumur, René-Antoine
Ferchault de
(1683-1757). French.
Physicist and naturalist. His works
cover geometry, technology, mineralogy,
ornithology. His collections of natural
history objects, mineralogy etc. were
given to the Académie des
sciences after his death. Correspondent
of Linnaeus.
. Linnaeus is convinced that the butterfly will easily grow up and become resident in Paris since Sedum telephium grows there. According to Sébastien VaillantísVaillant, Sébastien
(1669-1722). French. Botanist and
surgeon. Professor at the Jardin des
plantes. His theory on plant sexuality
influenced Linnaeus who regarded
Vaillant as one of the most important
and Thomas François DalibardísDalibard, Thomas François
(1703-1779). French. Naturalist, an
early adherent of Linnaeusís system.
Paris flora [Linnaeus refers to Vaillantís Botanicon parisienseVaillant, Sébastien
Botanicon parisiense: ou,
dénombrement par ordre
alphabétique des plantes qui se
trouvent aux environs de Paris

(Leiden & Amsterdam, 1727)
and Dalibardís Florae parisiensis prodromusDalibard, Thomas François
Florae parisiensis prodromus, ou
catalogue des plantes qui naissent dans
les environs de Paris rapportées
sous les dénominations modernes
& anciennes, & arrangées
suivant la méthode
séxuelle de M. Linnaeus

(Paris 1749).
] only Anacampseros purpurea is native of Paris. According to Jean Etienne GuettardGuettard, Jean Etienne
(1715-1786). French. Naturalist,
geologist and mineralogist. Director of
the museum of natural history objects of
the duke of Orléans. Best known
for his geological and mineralogical
studies of France. Correspondent of
Anacampseros vulgo faba crassa cannot be sowed. The Paris Botanical Garden [Jardin du Roi, Jardin des plantes, ParisJardin des plantes, Paris,
French. The Jardin des plantes was
founded in 1597 to produce flower models
for the manufacturing of tapestry in
Paris. In 1626 it became a garden for
medical and pharmaceutical plants. In
1739 it was again transformed to le
Jardin du roi, where also a natural
history museum was built. Later in the
eigteenth century a zoological garden
and a library were added.
] has a plant as can be seen from Bernard de JussieuísJussieu, Bernard de
(1699-1777). French. Professor of
botany, brother of Antoine and Joseph de
Jussieu. Demonstrator at the Jardin des
plantes. Sébastien Vaillantís
successor. Uncle of Antoine Laurent de
Jussieu. Correspondent of Linnaeus.
catalogue. In Sweden the larva only lives on Anacampsos vulgo faba crassa and it consumes its leaves. Linnaeus does not know whether it can live on Anacampseros purpurea since this plant does not exist in Sweden.

There is no danger to the farmers in transplanting this insect since it only lives on the Sedum mentioned.

Recently Linnaeus had access to the late Fredrik HasselquistísHasselquist, Fredrik
(1722-1752). Swedish. Physician and
naturalist, explorer. Studied under
Linnaeus and Lars Roberg 1741-1749. Went
to Egypt, Syria, Palestine, Cyprus,
Rhodes and the island of Chios. Died
near Smyrna. Son of Magnus and Helena
Maria Hasselquist, brother of Andreas
Hasselquist. Correspondent of Linnaeus.
collections from Egypt and Palestine and he could see that two thirds of the insects are the same as in Sweden. From that Linnaeus draws the conclusion that the distribution of insects is wider than that of plants and that there are no more insects than plants.

Linnaeus sends his regards to the great Jussieu.


a. original holograph (Staatsbibliothek zu Berlin).