I think

Charles Darwin's 1837 sketch, his first diagram of an evolutionary tree from his First Notebook on Transmutation of Species (1837) on view at the the Museum of Natural History in Manhattan. |Source=http://www.english.uga.edu/nhi via Wikimedia 

Coraux - planche de dessins issue des collections de Brititish Library

Coraux (Bretagne) - Composition et photographie personnelles
                     

               

   I think...

A découvrir en complément :
https://florencemeichelpointsdevue.reseauxapprenants.com/2012/10/arbre-de-vie-et-representation.html