I02 Muhjenbeior^a, Volume 8 



plant. The first collection was made in the Tortillita moun- 

 tains, September lo, 1908, no. 2j8j^ on open grassy soil near a 

 clifiF dwelling. It is one of the most characteristic plants of 

 these gianite mountains, so abundant in places that one can not 

 walk without stepping upon it. These two numbers were de- 

 termined by Dr. Millspaugh. Four other collections of what 

 is undoubtedly the same species were made as follows: Santa 

 Catalina mountains^ July. 9, 1909, no. J/J/, on an open south 

 slope near the Basin at 4000 feet elevation, and Alarch 16, 191 1, 

 no. ^262^ at the entrance to a rocky canyon near the Big Vein 

 Copper Company, at the base of the mountain at 3000 feet. 

 This elevation is that of the Tortillita station, and the soil is 

 similar in all three cases. Baboqiiivari mountains, April 2, 1910, 

 no. J(5j,-/, near the top of a high ridge south of Co>"ote Indian 

 village, on a south slope at about 5000 feet. Qui-itowoc hills, 

 February 17, 191 1, no. 4216^ on the north slope of a basaltic 

 table mountain at about 2500 feet. .*\ltho ilie writer has no 

 notes in this particular case, it is quite probable tliat the species 

 would have been looked for in vain both on the south side of 

 this mountain, and on the north side of the ridge at the preced- 

 ing station. This is explained' in Plant World 14: 236. 1911. 

 As the dates indicate, it was collected in flower from February 

 to September. While in common with many other perennials 

 in tjiis region of a double rainy season, it probably has two well 

 njarked. flowering periods annually when the flowers are pro- 

 duced in greater profusion, it is one of the most constant bloom- 

 ers to be found in the desert. 



