91 [ 174 ] 



A. oblongifolius, (Nutt.) Lower Platte, &c. 



A. Novse-Anglix, (Linn.) Lower Platte to the Wind river mountains. Aug. 18-Sept 24, 



A. andinus, (Nutt.) Near the snow line of the Wind river mountains, Aug. 16. 



A. glacialis, (Nutt. ) With the preceding. 



A. salsuginosus, (Richards.) With the preceding. 



A. elegans, (Torr. and Gr. ) Wind river mountains. 



A. glaucus, (Torr. and Gr.) With the preceding. 



Dieteria viscosa, (Nutt. ) On the Platte. 



D- coronopifolia, (Nutt. ) With the preceding. 



D. pulverulenta , (Nutt.) Near D. sessiliflora. With the preceding. 



Erigeron Canadense, (Linn.) On the Platte, from near its mouth to the Red Buttes. Latter 

 part of September to July 30. 



E. bellidiastrum, (Nutt.) On the Platte. 



E. macranthum, (Nutt.) With the preceding. 



E. glabellum, (Nutt.) With the preceding. 



E. strigosum, (Muhl.) With the preceding. 



Gutierrezia euthamise, (Torr. and Gr. ) Laramie river, Upper North fork of the Platte. Sept 3„ 



Solidago rigida, (Linn.) North fork of the Platte. 



S. Missouriensis, (Nutt. ) Fort Laramie, North fork of the Platte. July 22, to the mountains. 



■S. speciosa, (Nutt.) Upper Platte. 



5. virga-aurea, (Linn.) var. multiradiala, (Torr. and Gr.) Wind river mountain, from the 



height of 7,000 feet to perpetual snow. 

 S. incana, (Torr. and Gr.) Sweet Water river. 

 S. gigantea, (Linn.) var. /?. From the Platle to the mountains. 

 Linosyris graveolens, (Torr. and Gr.) Sweet Water river. Aug. 20. 

 L. viscidijlora, (Hook. ) Upper Platte. 



Aplopappus spinuhsus, (DC.) Fort Laramie, North fork of the Platte. Sept. 3. 

 Grindetia squamosa, (Dunal.) Upper North fork of the Platte, and on the Sweet Water. July 



22- Aug. 21. 

 Chrysopsis hispida, (Hook.) On the Platte. 



C. mollis, (Nutt. ) With the preceding. Too near C. folioso, (Nutt. ) 

 Iva axillaris, (Pursh.) Sweet Water river. Aug. 3. 

 Franseria discolor, (Nutt. ) Near the Wind river mountains. 

 Lepachys columnaris, (Torr. and Gr.) Little Blue river of the Kansas. June 26. 

 Bahamorrhiza sagittata, (Nutt.) Wind river mountains. 

 Helianthus petiolaris, (Nutt.) Black hills of the Platte. July 26. 

 H. Maximiliani, (Schrad.) With the preceding. 

 Helianthtlla unijlora, (Torr. and Gr. ) Wind river mountains. 

 Coreopsis tindoria, (Nutt.) On the Platte. 

 Cosmidium gracile, (Torr. and Gr.) Upper Platte. 

 Bidens connata, (Muhl.) With the preceding. 

 Hymenopappus corimbosus, (Torr. and Gr.) With the preceding. 

 Aclinella grandijhra, (Torr. and Gr.) n. sp. Wind river mountains. 

 Achillea millefolium, (Linn.) A. lanosa, (Nutt.) Upper Platte to the mountains- 

 Artemisia biennis, (Willd.) On the Platte. 

 A. cana, (Pursh.) Without flowers. With the preceding. 

 A.Hridentata, (Nutt.) On the Sweet Water, near the mountains. 



A. JiV folia, (Torr.) South fork of the Platte, and North fork, to Laramie river. July 4-Sept. 3„ 

 A. Canadensis, (Michx.) With the preceding. 

 A. Ludoviciana, (Nutt.) Black hills of the Platte. July 26. 

 A.frigida, (Willd.) Black hills to the mountains. 



