New Combinations and Two New Varieties in Astragalus, Orophaca, and Oxytropis (Leguminosae)

This report includes two new varieties in Astragalus, A. missouriensis var. humi- stratus and A. newberryi var. aquarii, and twelve new combinations in Astragalus, A. allochrous var. playanus, A. australis var. major, A. australis var. olympicus, A. bigelovii var. marcidus, A. episcopus var. lancearius, A. howelii var. pauper, A. iodanthus var. pseudoiodanthus, A. lim- nocharis var. montii, A. lonchocarpus var. hamiltonii, A. missouriensis var. accumbens, A. mono- ensis var. ravenii, and A. monumentalis var. cottamii. New combinations in Orophaca are 0. barriae, 0. hyalina, and 0. proimantha. New combinations in Oxytropis are 0. nana var. argo- phylla, 0. nana var. besseyi, 0. nana var. fallax, 0. nana var. obnapiformis, 0. nana var. sal- monensis, and 0. nana var. ventosa. The taxonomic reasons for these nomenclatural changes are briefly discussed.