1831 2 Crumming 642 - Valparaiso - appears to be same 3 Matthews 186 - near Sanana, valp. Chile Sept. This specimen has the broad siliques of the illust. - ca. 1 cm longer slightly more and 5-7 mm wide - otherwise similar to other specimens 4 Valparaiso, ph. Germain, anno 1856 et 1857 = same as 1 5 Valparaiso, philippi = 3 6 Americ. merid de: Chile M. d. Gay = 1 Mathewsia rivana - Werdermann 442 - Atacama, Copiapó, Caldera, quebrada Leon, X. 1924. ca 20 m. This spec. is quite similar to Johnston 5748 though with narrower & longer siliques. Det. by Johnston Mathewsia rivana South America. R. Pearce "up to 18 inches, yellowish brown; I purchased Sept. 1868 [dry hills, cord.] Copiapó, "8000 ft., Nov. 1862" decorous throughout including young siliques; stem rather stout, 3.5 dm., tomentose with mixture of large spreading branched trichs & smaller matted dendritic trichomes; leaves