CATALOGUE. 23 



boldt, Wahsatch, and Uinta Mountains; 9-10,000 feet altitude; July, 

 August. (94) 



Deaba Caeoliniana, Walt., Var. miceantha, Gray. From Rhode Island 

 to the Missouri, and southward to Georgia. The variety is the more western 

 form, being reported from Missouri and Arkansas, New Mexico, and Sonora. 

 Found in Salt Lake Valley, and on Antelope Island in Salt Lake. May, 

 June. (95.) 



SiSYMBEiuM JUNCEUM, Bieb. Glabrous, glaucous, stems several from a 

 perennial root, 8-15' high ; lower leaves petioled, runcinately pinnatifid, the 

 upper ones linear-lanceolate, entire ; flowers yellow, 2-3" long ; style very 

 short ; siliques terete, very slender, 2' long, sub-erect ; pedicels spreading. — 

 Collected by Douglas and Wyeth on the Columbia and Salmon Rivers, 

 Oregon. East Humboldt Mountains, Nevada ; 8,000 feet altitude; August. 

 (96.) 



SiSYMBEiUM CANESCENS, Nutt. Varying much in the section of the 

 leaves and in the degree of pubescence — the latter always branched ; 3'-2° 

 high. From Arctic America to Mexico. Very abundant on the dry foothills 

 and valleys of Nevada. Known as " Ah-tskh" by the Pah-Utes, who gather 

 its seed for food'. 4,500-5,000 feet altitude ; April-September. (97.) 



A form occurs with the siliques oval or long-elliptical, lJ-3" long, one- 

 half to one-third the usual length. Near Humboldt Lake, Nevada. (98.) 



SiSYMBEiUM Califoenicum. {SmelowsMa ?, Gray. Proc. A7ner. Acad. 

 6. 520.) Annual, branching above, hoary-pubescent, or the stem sub-glab- 

 rous ; leaves pinnately parted, segments usually obtuse, 3-5-lobed ; flowers 

 small, yellow; pods small, oblong or linear, more or less acute at each end, 

 apiculate with the short style ; cells 1-12-seeded ; seeds in one series. — 

 Stems 1-3° high, less diffusely branched than 8. canescens, which it closely 

 resembles, but from which it is at once distinguished by its 1-seried seeds ; 

 the pods are also often (but not uniformly) narrower and more acuminate, and 

 it is found at higher elevations. The plant upon which the species was 

 founded had unusually few-seeded pods ; with a fuller set of specimens there 

 could have been little hesitation in referring it to Sisymbrium. Found 

 by Brewer on Mount Dana and near Mono Lake, California. Frequent on the 

 Toyabe and East Humboldt Mountains, Nevada, and in the "Wahsatch ; 

 6-10,000 feet altitude ; June-August. (99.) 



