Received: 3 May 2020
Accepted: 4 September 2020
First Online: 12 October 2020
Ethics approval and consent to participate
: Sampling sites of <i>S. sellowii</i> and <i>S. lepidophylla</i> are not classified as protected natural areas and neither species are included in the Mexican Official Norms (NOM-059-SEMARNAT-2010) as endangered species. Specifically, <i>S. lepidophylla</i> was collected with prior consent of landowner (Dr. Edgar Balcázar-López from CUCEI, University of Guadalajara).
: Not applicable.
: The authors declare that they have no competing interests.