December 31, 1906 201 



Lepidium fremontii Wats. 



No. 8310J collected May 22, in the valley between Laws 

 and the White mountains, Inyo county, where it is plentiful. 

 In the report of the Death Valley expedition, Coville says they 

 seldom found it growing above the Larrea belt, but it occurs 

 at different points along the railroad as far north as Walker 

 lake, Nevada, a country in which Larrea does not seen to grow. 



SprEngERia WATSONIANA Greene, Leaflets, 1: 199. 1906. 



No. 8181, collected May 5, near Laws, Inyo county, in 

 moist ground near an irrigating ditch. The plants were pros- 

 trate, largC) often nearly a foot in diameter, the leaves "some- 

 what cuneate" as described, but more often toothed half way to 

 the base instead of "about the summit," and there is no trace of 

 the "more often quite entire and very acute." The pods are 

 2 mm. long and as wide. It also grows in dry ground and then 

 is very small and dwarfed, often not over an inch high and 

 little branched. The type was collected by Watson about Hum- 

 boldt Lake, Nevada. Our specimens were at first referred to 

 S. minuscula^ which is found further south, but that is said to 

 have "racemes distinctly elongated and longer than broad," the 

 only distinguishing character in the description, and in this ours 

 do not agree. 



HuTCHiNSiA PROCUMBENS (L.) DC. in Desv. Journ. Bot. 3: 168. 



1814. 

 Lepidhun procumbe7is L. Sp. PI. 643. 1753. 

 Capsella elliptica C. A. Meyer, Ledeb. Fl. Alt. 3: 199. 



1831. 

 Capsella proctimbens Fries, Novit. Fl. Suec. Mant. 1: 14. 



1832. 

 Hymenolobus divaricatus Nutt; T. & G. Fl. N. A. 1: 117. 



1838. 

 Hymenolobus erectus Nutt. 1. c. 

 Capsella divaricata Walp. Rep. 1: 175. 

 Bursa divaricata Kuntze, Rev. Gen. PL 21. 1891. 



