VOL. IV.] Plants Collected in Southeastern Utah. 117 



which by the old classification would be Hoffmanseggia becomes 

 ^C^salpinia. Plate XXVI.* 



38. Lathyrus paluster L. Along the bottom of Monte- 

 zuma Creek. 



39. LupiNUS Shockleyi Watson. Scarce. On the road from 

 Thompson's Springs to Moab. 



40. lyUPiNUS PUSI1.1.US Pursh. Abundant. But not seen 

 after leaving Moab. 



41. PsoRALEA CASTOREA Watson. Along the side of a 

 sand}^ wash. 



42. Trifolium Plummer.S Watson. Under the cedars and 

 pinons at the head of Montezuma Canon. 



43. Amelanchier alnifoi^ia Nutt. This is a peculiar 

 form of this widely distributed species, collected in Court House 

 Wash. It differs from the form common in Colorado, in 

 the leaves smaller, less veiny, and more glossy on the upper 

 surface, the branches are straggling, flowers and leaves few; so 

 that the observer is first attracted to the difference by the less 

 compact form of the Utah variety. 



44. Cercocarpus PARVIF01.IUS Nutt. Near Monticello. 

 CowANiA Mexicana D. Don. On rocky hills and 



45 

 mesas 



46 



47 



Prunus demissa Walt. In deep canons near water. 

 Purshia tridentata DC. Common on the hills and 

 mesas, but less so than in Colorado. 



48. OiiNoTHERA piNNATiFiDA Nutt. Thompson's Springs. 



* EXPI.ANATION OF PI.ATE XXVI. 



CiESALPiNiA REPEXS: " A " longitudinal section of the pistil enlarged 

 four times, showing the arrangement of the ovules; " B " the same showing 

 the ciliate, sparingly hairy stigma; "C" stamen enlarged four times 

 showing the peculiar hairs on the filament; "D" anther enlarged; "E" 

 petals spread out, enlarged twice; "F" calyx spread open, enlarged twice; 

 " G," " H " pods nearly ripe to show difference in shape; "I " end of pod 

 enlarged to show the venation; " J " a piece of the stem near the base to 

 show the ribs and little spines; " K " leaf enlarged showing inner and outer 

 surface; "L," another leaf enlarged much more showing the glands and 

 hairy surface. 



