VOL. IV,] Plants Collected in Southeastern Utah. 115 



19. lyiNUM RiGiDUM Pursh. This was quite abundant in 

 the sandy bottom near the Grand River. It has taller and more 

 diffuse stems than the Grand Junction plant, and the flowers are 

 larger and lighter in color. 



20. Glossopetalon spinescens Gray. This is not plen- 

 tiful in any one locality, but seems to be widely distributed 

 through the section. 



21. Negundo aceroides Moench. Common along Monte- 

 zuma Creek, but not at the lower end. 



22. Rhus Canadensis Marsh. This differs from the ordi- 

 nary form of var. trilobata in that the leaves are simply crenate. 

 It was collected in Court House Wash. 



23. Astragalus amphioxys Gray. Court House Wash, 

 McElmo Creek, and Montezuma Canon. The most widely-dis- 

 tributed Astragalus of the region. 



24. Astragalus Bigelovii Gray. Usually found on pinon 

 and cedar covered mesas. 



25. Astragalus Geyeri Gray. Court House Wash. 



26. Astragalus Haydenianus Gray. Montezuma Creek. 



27. Astragalus lonchocarpus Torr.(?) Court House 

 Wash. 



28. Astragalus scaposus Gray. McElmo Creek. 



29. Astragalus pictus Gray var. angustus Jones. Mon- 

 tezuma Creek. 



30. Astragalus Preussii Gray. Common at Moab. 



31. var. SULCATUS Jones. Cane's Spring. 



32. Astragalus desperatus Jones. McElmo Creek; San 

 Juan River. 



33. Astragalus palans Jones. Montezuma Creek. 



34. Astragalus Coltoni Jones. Court House Wash. 



35. var. FOLiosus Jones. This is the form found at 



Monticello. It was collected in flower and green fruit. 



36. Astragalus Pattersoni Gray. This species seems 

 to be widely distributed on the western slope, growing in alkaline 

 soil. 



