Casearia ulmifolia Vahl ex Vent., Choix Pl.

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, Candollea 72 (1), pp. 87-132 : 100

13. Casearia ulmifolia Vahl ex Vent., Choix Pl. : sub tab. 46. 1808.

Lectotypus (first step designated by Sleumer, 1980: 324; second step designated here): TRINIDAD: 1778, Ryan 20 ( C [ C 10012565 ] image seen; isolecto-: BM [ BM000624343 ] image seen, BR [ BR0000005104826 ] image seen, C [ C 10012566 , C 10012567 , C 10012568 , C 10012569 , C 10012570 , C 10012571 ] images seen, G [ G00364133 ]!, L [ L0010781 ] image seen, P-JU n° 16215 [ P00678826 ]!).

Notes. – Ventenat validated Vahl’s name by publishing a few comparative leaf characters: “[bords de feuille] finement dentés en scie”. Sleumer (1980: 324) correctly considered the type as being held at C. His implicit lectotypification needs a second step designation as seven sheets exist at C. In their revision of the Casearia ulmifolia complex, Marquete & Mansano (2012: 201) failed to properly designate a single sheet at C as the lectotype. We designate the most complete sheet in C as the lectotype. Several isolectotypes are known, among them one in Ventenat’s herbarium. We are not in agreement with previous authors ( Sleumer, 1980; Marquete & Mansano, 2012) and do not consider the collection in G-DC [ G00476917 ] as elements of original material.