7491 Oxys peraffnerie (Wats.) Schulz var. pringlei (Schults) Roll Scaregly branched perennial, Fairly abundant, same as 7489 Fixed (10) 7492 Neriugenia Castellana Inserifolia (Wats.) Greene var. mexicana Bacon Abundant, open desert, Clay-like soil. 7 ft. white; drying lavender. Roadside 36 mi. S. of Saltillo, Coahuila Sept 29, 1974 n=16 (19) 7493 Parthenium bipinnatifidum (Ratago) Rollins Roadside in vicinity of P. Confertum, which is more abundant. As no. 7492 (3) 7494 Milla biflora Cav. Plants up to 2 ft. tall, tepals white above with a broad greenish stripe below. Sandy soil. 16 miles Southwest of Zacatecas, Zacatecas Sept 30, 1974 Rev G. Nelson (5)