Type: Mexico, Michoacan, Mun.. Morelia, 3.6 km after Jesus del Monte, on the way to San Miguel del Monte, on exposed rocks next to the stream, forest of disturbed pine and oak trees, 2060 m, 8.IV.1992, M. Flores-Cruz, A. R. López-Ferrari and A. Espejor 740 (neotype: UAMIZ 29163; isoneotype: ENCB, IEB, UAMIZ 29164, US).