Arnium arizonense
(Griffiths) N. Lundq. & J.C. Krug
TRTC 38806. Place of collection: México; Hidalgo; Zimapan, to north. Date of collection: 21 August 1961. Associated organism: Equus sp. (dung). Collector: Cain, R.F.. Identifier: Jeng, R.S.; Krug, J.C..