Nasturtium* sinuatum Columbia River & Arkansas a second specimen on the same sheet is marked "arkansas" also "Sisymbrium*sinuatum" (1) looks perennial, all lvs sinuate-dentate, cuneine petiolate 3-6 cm. long numerous on stems, plant is in young flower. (2) looks perennial; leaves all similar except very upper most, petiolate, sinuato-dentate, glabrous, very small auricles at base, infl. congested, pedicels slender, 1-1.5 cm. long, at right angles to slightly reflexed; sepals glab, linear- oblont to broader, petals obovate, only exceeding sepals by 1-2 mm.; sep. ca. 4 mm. long. Nasturtium curviligina Columbia shores not marked with an asterisk and with note by E.L. S. "not so!!" The plant looks very much like the one described under (2) above except that the silgives & are covered with small scales as in the rachis etc.; the stems also have there scales but the leaves are free of them- pedicels divericate, 8-12 mm. long, silgives ca. 8 mm., straight to rather markedly curved upward, style ca. 1 mm. long;