Veronica michauxii Lam.

Albach, Dirk C., 2025, From just a few to the most type-rich herbarium for Veronica L. (Plantaginaceae) - The effect of digitization of the Muséum national d’Histoire naturelle herbarium in Paris, Adansonia (3) 47 (7), pp. 47-130 : 52

Veronica michauxii Lam.

Tableau encyclopédique et méthodique des trois règnes de la nature 1: 47 ( Lamarck 1791). — V. anagallis-aquatica subsp. michauxii (Lam.) Elenevsky , Byulleten’ Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii 74 (6): 77 ( Elenevsky 1969).

TYPE CITATION. — Iran, Hamadan: “Ex oriente, ad aquas montis Elvend”, A. Michaux.

LECTOTYPE (designated here). — P-Lam[ P00358024* ].

Nomenclatural note. Material sent by Michaux is said to be grown in the Royal Botanic Gardens in Paris. The specimen of V. michauxii in the Lamarck herbarium (P-LAM[P00358024]) is certainly original material, whereas the specimen in the general herbarium P (P04023177) from the herbarium Durand, bearing a label from 1969 that it may be type material, does not show any sign that Lamarck has seen it. Genetic and morphological studies on V. anagallis-aquatica and putative relatives in Iran recently demonstrated that V. michauxii is a variety, which can occur intermixed with other varieties within the same populations ( Hosseinnejad Azad et al. 2020, 2021). However, in the light of ongoing phylogenetic analyses, which make it likely to differentiate between a European species ( V. anagallis-aquatica s.str.) and species of the Near East, for which the earliest available name is V. michauxii , I refrain from making nomenclatural changes.