54. Oliveria decumbens Vent., Descr. Pl. Nouv.: tab. 21. 1801.

Lectotypus (designated here): [IRAQ]: Hort. Cels, Ventenat s.n. (G [G00341532]!; isolecto-: G [G00341531]!, P-JU n° 10396 [P00667197]!).

Notes. – Two gatherings have been located. The original material cultivated in Cels’s garden in Ventenat’s herbarium with a duplicate in P-JU and two specimens from Iraq collected by Bruguière and Olivier in G-DC [G00664660, G00664720]. The better preserved Cels’s garden collection in Ventenat’s herbarium is here designated as the lectotype.