Etienne-Pierre Ventenat (1757 - 1808) and the gardens of Cels and Empress Joséphine Author Callmander, Martin W. Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. Author Durbin, Olivier D. Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. Author Lack, Hans-Walter Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. Author Bungener, Patrick Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. Author Martin, Pascal Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. Author Gautier, Laurent Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 60, 1292 Chambésy, Switzerland. text Candollea 2017 2017-03-30 72 1 87 132 journal article 20462 10.15553/c2017v721a8 acfdbf0a-a444-4a6d-a27f-2fbb27a6893b 2235-3658 5721919 38. Laserpitium triquetrum Vent., Descr. Pl. Nouv. : tab. 97. 1803. Ξ Heptaptera triquetra (Vent.) Tutin Lectotypus (designated here): [ TURKEY ]: Hort. Cels, Ventenat s.n. ( G [ G00341535 ]!). Notes . – The plant cultivated by Cels originated from a Bruguière and Olivier collection from Turkey . The cultivated specimen from Cels in Ventenat’s herbarium is designated as the lectotype as it represents the original material. Collections in G-BOIS [ G00330753 , G00330754 ] and P [ P04274054 ] are considered here as original material. Herrnstadt & Heyn (1971: 106) designated a type at G and copied the locality given by Ventenat in Descriptions (1803: tab. 8): “Constantinople sur les bords du Canal”. No Bruguière and Olivier collection exists with this locality (see Material and Methods chapter) and their potential implicit lectotypification is not accepted here. The G-BOIS collections have “voyage de Bruguière & Olivier en Orient” even if Boissier (1872: 944) gave “Hab. in collibus ad Bosphorum proper Byzantium (Oliv.!)”.