Apium prostratum Vent., Jard. Malmaison

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 : 98

8. Apium prostratum Vent., Jard. Malmaison 2: tab. 81. 1804-1805.

Lectotypus (designated here): [ AUSTRALIA]: Hort. Malmaison , Ventenat s.n. ( G [ G00359756 ]!; isolecto-: G-DC [ G00478844 ]!).

= Apium prostratum Labill., Voy. Rech. Pérouse 1: 141. 1800 [nom. nud.], Nov. Holl. Pl. 1: 76, tab. 103. 1805 [nom. illeg.].

Typus: AUSTRALIA. Tasmania: Van Diemen, La Billardière s.n. (holo-: FI-W [ FI016964 ] image seen; iso-: B-W [ B-W 5989-01 0 ]!, G-DC [ G00478846 ]!, FI-W [ FI016965 ] image seen, P [ P00834725 , P00834726 ]!, P-JU n° 10157 [ P00307178 ]!).

Notes. – The seeds of this new species were received from Hamelin who took part in the Baudin Expedition to the Southern Territories (see introduction). A single gathering exists in Ventenat’s herbarium at G, a plant cultivated in Malmaison with a fragment in G-DC. The collection in Ventenat’s herbarium is designated here as the lectotype. Ventenat in Jardin de Malmaison (1804-1805: tab. 81) wrote in the note following the species description that his new species seems to be the same [“…paroît…”] as the one mentioned by La Billardière (1800: 141). Apium prostratum Labill. is a nom. nud. in 1800 but was validly published in September 1805 by La Billardière (1804 -1805: 76, tab. 103). However, Ventenat’s name had been published between December 1804 and January 1805 ( Stearn, 1939) and antedates La Billardière’s. Both names are independent and not based on the same types. Short (1979: 217) combined both names and mentioned a type in P as the holotype and an isotype in G-DC. In the latter herbarium, original material of both names are present. A holotype and two isotypes of La Billardière’s later homonym are present respectively in FI-W, and in B-W and P-JU.