4.8. Boerhavia pterocarpa S. Watson (1882: 376) .

Lectotype (here designated):― UNITED STATES OF AMERICA, Arizona, Apache Pass, 1881, Lemmon s.n. (P00712504 [image!] image available at http://coldb.mnhn.fr/catalognumber/mnhn/p/p00712504).

Typification of the name Boerhavia pterocarpa:― The protologue of Boerhavia pterocarpa consists of a desctiption and the citation of provenance, a collector and year of collection (“At Apalache Pass, Arizona; J.G.. Lemmon, 1881”), sintype according to the Art. 9.6 of ICN. The only specimen found of B. pterocarpan collected by Lemmon in Arizona is deposited in P (barcode P00712504) . P00712504 is here designated as lectotype of the name.

Distribution in Mexico: ―It has been reported from Sonora (Spellenberg 2003, Villaseñor 2016), but no material collected in the state were found in the consulted herbaria. Standley (1918) cites a specimen collected by Griffiths (no. 6887) in 1904 “Near Altar”.