1.2. Abronia villosa Watson (1873: 302) .

Lectoype (here designated):― UNITED STATES OF AMERICA, Arizona, 1872, Wheeler s.n. (GH00037469 [image!] image available at http://data.huh.harvard.edu/c4385846-043e-47d3-893e-4048d136b63e; isolectotypes: US 00103030 [image!] image available at http://n 2t.net/ark:/65665/3d394e9ca-4255-4558-855e-030844fc2a12, PH 00050052 [image!] image available at https://plants.jstor. org/stable/10.5555/al.ap.specimen.ph00050052; YU 001096 [image!], image available at https://plants.jstor.org/stable/10.5555/al.ap. specimen.yu001096) .

Typification of the name Abronia villosa: —The protologue (Watson 1873: 302) consists of a desctiption and the citation of a sintype according to the Art. 9.6 of ICN (“ Arizona (Wheeler)”). Four specimens of Abronia villosa collected by Wheeler in Arizona were traced (barcodes: GH00037469, US 00103030, PH 00050052, and YU001096), that correspond to the current concept in Abronia (see e.g., Jepson Flora Project 2022, Spellenberg 2003). The specimen GH00037469 is here designated as lectotype since during 1873, when the name A. villosa was published, Watson was in Harvard working as the assistant of Gray (Brewer 1903).

Distribution in Mexico: ―It has been reported from Baja California, Baja California Sur and Sonora (Spellenberg 2003, Villaseñor 2016). In Sonora it is restricted to the Sonoran biogeographic province (Fig. 4A), and has been collected in Caborca, Hermosillo, Pitiquito, Puerto Peñasco and San Luis Río Colorado municipalities, in beach dunes, roadsides and disturbed areas of xerophytic vegetation, at 0–500 m a.s.l.