Colletia ephedra Vent., Descr. Pl. Nouv.

20. Colletia ephedra Vent., Descr. Pl. Nouv.: sub tab. 92. 1803. Ξ Retanilla ephedra (Vent.) Brongn. Lectotypus (first step designated by Tortosa, 1992: 235; second step designated here): CHILE: sine loc., Dombey s.n. (P [P01818929]!; isolecto-: G [G00341460, G00341672]!, G-DC [G00476003]!, P [P01818930, P01818931]!, P-JU n° 16153 [P00678779]!). = Colletia obcordata Vent., Descr. Pl. Nouv.: tab. 92. 1803. Lectotypus (designated here): [CHILE]: Hort. Cels, Ventenat s.n. (G [G00341459]!; isolecto-: G [G00341458]!, G-DC [G00476011]!, P-JU n° 16157 [P00667163]!) Notes. – Ventenat in Descriptions (1803: sub tab. 92) validated the name Colletia ephedra based on a Joseph Dombey (1742-1794) specimen from Peru. Dombey was a French explorer who collected in Chile, Peru and Brazil (Stafleu & Cowan, 1986). Tortosa (1992: 235) designated an holotype specimen at P. His implicit lectotypification needs a second step designation as three sheets exist at P. We designate here the most complete sheet at P as the lectotype. Several duplicates have been found. Tortosa (1992: 235) corrected the origin of the material collected by Dombey as from Chile and not Peru. Colletia ephedra has been illustrated in Choix tab. 16 in late 1803 or early 1804. Two specimens of a single gathering of C. obcordata have been located in Ventenat’s herbarium at G. It represents the plant cultivated in Cels’s garden. The most complete collection is designated here as the lectotype. Tortosa (1992: 235) designated the type specimen at P but no collection has been located at P in the general collection.Published as part of Callmander, Martin W., Durbin, Olivier D., Lack, Hans-Walter, Bungener, Patrick, Martin, Pascal & Gautier, Laurent, 2017, Etienne-Pierre Ventenat (1757 - 1808) and the gardens of Cels and Empress Joséphine, pp. 87-132 in Candollea 72 (1) on page 101, DOI: 10.15553/c2017v721a8, http://zenodo.org/record/572191