76009 Parthenium argentatum Shrub variable, 1-3'1/2 ft. high. No evidence of introgression. Manula not seen in immediate vicinity. Head of ravine and steep slope. Four Sierras west of Hwy 40+49 Unused steep mining road 1.5 mi. W. of highway, 1/2 mi north of Chocolate, 18 mi N of Pedregita Dgo. Aug. 21, 1976 76010 Synthylopsis greggii Limestone hill 6 miles southwest of Cuencame, Dgo. Aug. 21, 1976 76011 Parthenium argentatum Limestone rubble, very dry area. Shrubs tend to be quadrangular, 2-3' high. Poor fruit set. Only random mass collection made. Manula present. Off road to El Rodeo,