PLANTS FROM SOUTHEASTERN UTAH. 285 



Specimens collected at Butler Spring approach var. 

 dissectum. The plant is greener than the common form, 

 with stellate pubescence more scattered, almost wanting 

 on the lower part of the stem; racemes loosely flowered; 

 leaves 3-divided, with entire or 2-3 lobed divisions. It 

 is much less luxuriant than the form common on the 

 plains around Denver, and shows the effect of its drier 

 environment. 



15. Sida hederacea (Hook), Fl. Bor. Amer., 1, 107, 

 under Malva Dougl. ms. ; Torr. in Gray, PL Fendl., 



23- 

 Type locality: "In the interior districts of Columbia." 

 Seen only on the sandy flats of the San Juan River, 

 near Bluff City. This seems to be the most eastern sta- 

 tion reported for this species. 



16. Linum aristatum Engelm., Wislizenus Rep., 17. 

 Type locality: "In sandy soil near Carizal, south of 



El Paso." 



Var. subteres, n. var., Trelease in ed. Near the head 

 of Willow Creek, in the sand that had collected in the 

 rocky basin of the wash. Dr. Trelease regards this as a 

 new variety, perhaps a new species. 



17. *Rhamnus Purshiana DC, Hook. Fl. Bor. Amer., 

 1, 123, t. 43. R. alnifolia L'Her., in Pursh. Fl. 1, 

 166. 



Type locality: "On the banks of the River Kooskoos- 



ky '". 



This species seemed like a waif from the north. Only 



one bush was seen growing in the wet bank from which 



the spring issued. Leaves obovate or elliptical, largest, 



with blade 9 cm. long, 4^ cm. wide; one berry four- 



*This may be Rhamnus betulafolia Greene, Pitt., iii, part 13, p. 16. It 

 is from the same general region and seems to fit either description. 



