Arnium macrotheca
(P. Crouan & H. Crouan) N. Lundq.
TRTC 37431. Place of collection: México; Jalisco; Tequila, to west. Date of collection: 17 August 1960. Associated organism: Equus sp. (dung). Collector: Cain, R.F.. Identifier: Jeng, R.S.; Krug, J.C..