Sisymbrium altissimum Linn. 



Although the appearance in America of this Crucifer ante- 

 dates that of Lepidium perfoliatum, so that it has been enrolled 

 in some manuals, it is a comparatively recent immigrant, but 

 already has spread from ocean to ocean, and in some places has 

 earned the reputation of an obnoxious weed. Its California 

 history is very short. At San Bernardino I first saw it, a single 

 plant, in 1912, from the seed of which was produced the next 

 year a goodly patch, and in the same summer of 1913 it was 

 observed in abundance in a fallow field at Redlands, and in 

 several places along the road in the adjacent Yucaipe valley. 

 It is now, 1914, already widely spread in San Bernardino val- 

 ley, but nowhere in abundance. Its Los Angeles history was 

 related by Davidson in the preceding issue of this Bulletin 

 (9:44). He observed it first in 1910 at Hollywood, in 1911 in 

 Laurel Canyon and in 1912 at Sierra Madre, in each instance 

 only a single plant. In 1913 he found it "not infrequent along 

 roadsides in the San Fernando valley and at Newhall." It has 

 not yet been reported from the upper part of the state, but 

 probably occurs there. It may have reached the southern 

 counties from Utah, as Garrett reports it (Torreya 13:238) as 

 abundant everywhere about Salt Lake City in 1913, but un- 

 known ten years before. It is a tumbleweed. and this habit 

 facilitates its dissemination. Other western collections are 

 Minneapolis, Sheldon in 1895; Snake River, Oregon, 1901, 

 Cusick 2525, 2526; Glendale, Nevada, 1907, Kennedy 1572. 



An account of its appearance and progress, east of the 

 Pacific Coast, is given by E. S. Hill in Torreya 9:96, 1909, who 

 noted its earliest recorded appearance in 1883 at Castle Moun- 

 tain, in the Canadian Rockies. At the date of his paper Hill 

 considered this weed "quite generally spread throughout the 

 northern parts of the United States and the southern part of 

 Canada." 



Cleome serrulata Pursh 



A waif in the railway yards at Barstow, May, 1914, Parish 

 9250. 



Ribes roezlii Regel 



Mill Creek Canyon, San Bernardino Mountains, altitude 

 6000 feet, May 22, 1913. Parish 3525. 



Parosela polyadenia subnuda Parish 



' Occasional on the arid hills about Barstow, in the Mojave 

 desert, May, 1914, Parish 9239. Owens Valley is the nearest 

 station previously known. 



Lupinus microcarpus Sims 

 Desert slope of Tejon Pass, near the summit, May 27, 

 1914, Parish 9256. 



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