]> GH barcode-00072323 Mexico Guerrero At Km. 339-340 between Acahuizotla and Agua de Obispo on highway to Acapulco, steep grassy slopes and narrow ravine with open pine woods and scattered oaks. ca. 3000 feet Heterocentron parviflorum Whiffin Whiffin 2010-08-16 16:34:52 H. E. Moore, Jr.