CATALOGUE. 23 
boldt, Walisatcli, and Uinta Mountains; 9-10,000 feet altitude; July, 
August. (94.) 
Draba Caroliniana, Walt., Yar. micrantha, Gray. From Rhode Island 
to the Missouri, and southward to Georgia. The variety is tln^ more wesleni 
form, being n^pori cd ti-om Missouri and .\rkansas, New Mexico, and Sonora. 
Found in Salt Lake Valley, and on Antelope Island in Salt Lake. May, 
June. (95.) 
Sisymbrium junceum, Bieh. Glahrons, glaucous, st(Mns sev(M-al from a 
perennial root, 8-15' high; lower leaves ])etioled, nnicinately pinnatilid, the 
up])er ones linear-lanceolate, entiic; llowci's yellow, 2-o" long ; style veiy 
short; siliqucs terete, very slender, 2' long, snh-ereet ; |)edieels spreading. — 
Collected hy Douglas and AVyetli (hi tlie Cohnnhia ami Sahnon Ivivers, 
()n\gon. Last ILunholdt ^fountains, Nevada ; 8,000 feet altitude; August. 
(IJG.) 
Sisymbrium canescens, Nutt. Varying much in the section of tlie 
leaves and in the degree of pubescimce — the latter always hi'anchcd; 3'-2° 
liigh. From Arctic America to Mexico. Very abundant on the dry foothills 
and vallej s of Nevada. Known as ''Ah-tsah" by the Pah-Utes, who gather 
its seed for food. 4,500-5,000 feet altitude ; April-September. (97.) 
A form occurs with the sili(pu?s oval or long-ellij)tical, 11-.)" long, one- 
half to one-third the usual length. Near Humboldt Lak(;, Nevada. (98.) 
Sisymbrium Califorxicum. {SvielowsJda ?^ Gray. Froc. Amer. Acad. 
G. 520.) Annual, branching above, hoary-])ubeseent, or the stem snb-uflab- 
rous ; leaves pinnately parted, segnu'uts usually obt use, ^-o-lobed ; tlowers 
small, yellow; jxxls small, oblong or linear, more or less acute at each end, 
a^iiculate with the short style; cells l-12-seede(l; seeds in one series. — 
Stems 1-3*^ Idgh, h'ss ditlusely branche<l than iS. canesans^ which it closely 
resend)les, l)ut from which it is at once <lis1 iniruislied by its 1-seried seeds; 
the pods are also ol'leii (l)ut not imiforndyj narrower and more acuminate, and 
it is found at higher elevations. The plaid uj)on whi(di the s])ecies was 
founded had unusually few ->ee(le<l pods: with a fidler set ot" specimens t here 
could have been Utile hesitation in reterriiig it to Sisymhriujn. Found 
])y Ib-ewcr on .Mount Dana and near Mono Lake, California. Frequeid on the 
Toyabe and Lust Humb(ddt Moiiidains, Nevada, and in the AVahsateh: 
G-1 0,000 feet altitude: June-Auirtist . (:>!l.) 
