2IO Wyo77iing Experiment Station. 



Ranunculus occidentalis, Nutt. Little Sandy, June. 



Myosurus minimus, L. Snake River, September. 



Thalictrum alpinum, L. Wind River range. July. 



Stanleya tomentosa, Parry, Owl Creek, July. 



Draba ventosa, Snake River Pass, September, 



Arabis canescens, Nutt. Sweetwater, June. 



Lesquerella ( Vesicaria) alpina, Nutt. Green River, June. 



Capsella divaricata, Walp. Little Sandy, June. 



Nasturtium curvisiliqua lyratum, Wats. Yellowstone, August. 



Subularia aquatica, Yellowstone Lake, August. 



Arenaria Fratiklinii, Dougl. Wind River, July. 



Arenaria pungens, Nutt. Stinkingwater, July. 



Arenaria stricta, Wats as A. Rossii, R. Br. Owl Creek range, July. 



Arenaria arctica, Stev. Owl Creek, July. 



Lychnis Drummondii, Wats. Owl Creek, July. 



Lychnis Kingii, Wats, as L. Ajanensis, Regel. Owl Creek range, July» 



Spraguea umbellata, Torr. Stinkingwater, August. 



Calyptridium roseum, Wats. Green River, June. 



Rhamnus alnifolia, L'Her. Stinkingwater, August. 



Lupinus minimus, Dougl. Stinkingwater, August. 



Trifolium andinum, Nutt. Ham's Fork, June. 



Astragalus ventorum. Grey, Wind River, July, 



Astragalus triphyllus, Pursh, Owl Creek, July. 



Astragalus simplicifolius, Gray, Green River, June. 



Astragalus glabriusculus, Gray, Wind River, July. 



Astragalus lotiflorus, Hook. Wind River, July. 



Astragalus Geyeri, Gray, Green River, June. 



Astragalus flavus, Nutt. Green River, June. 



Astragalus pubentissimus, Nutt. Green River, June. 



Astragalus glareosus, Dougl. Green River, June. 



Astragalus microcystis. Gray, Stinkingwater, July. 



Oxytropis campestris, L. Owl Creek, July. 



Oxytropis viscida, Nutt. Wind River, July. 



Oxytropis lagopus, Nutt. Pacific Springs, June. 



Spirea ctespitosa, Nutt. Owl Creek range, July. 



Ivesia Gordoni, Gray, Stinkingwater, July. 



Heuchera cylindrica Dougl. Stinkingwater, July. 



Saxifraga debilis, Engelm. Owl Creek range, July. 



