New Species from the Pacific Coast. —| 
By EpmunpD P. SHELDON 
, Cheiranthus Pacificus Sheldon sp. nov. 
Perennial, slender, erect, 3-6 dm. high, usually simple, some- _ 
times branched above and rarely several-stemmed from the some- 
what woody base after the first year: stems green or slightly 
purplish at the base, slightly 6-g-angled above, the angles becom- 
ing mere lines below, pubescence short, appressed: leaves lanceo- 
late, 1-nerved, narrowed to a sessile, subclasping base, entire to 
remotely runcinate-toothed, acuminate at the apex, pubescence 
appressed, once or twice forked: inflorescence subcapitate, even- 
tually developing into a lax raceme of erect or divergent pods: 
sepals 5-6 mm. long, the outer often 2-3-toothed at the apex: 
petals relatively small, 6-12 mm. long, yellow: pods 5-10 cm. 
long, quadrangular, acute or short-acuminate at the apex, the 
persistent stigmas small, and but slightly lobed: seeds lenticular, 
with a hyaline wing at one end. 
This species has hitherto been referred to C. asper Nutt., but its 
relationship is rather with C. cxconspicuus Greene and C. angustus 
Greene. 
A study of the seeds of the species of Chetranthus in the Her- 
barium of the California Academy of Sciences seems to show that 
those of C. asper and its near relatives are quadrangular and trun- 
cate at one end, often apiculate on the other. The present species 
is characterized by lenticular seeds with a wing-like appendix. 
The present known range of this plant is from northern Oregon 
to southern California. 
The type is my no. 11008 from Multnomah Falls, Multnomah 
Co., Oregon, July 27, 1902. I found it in abundance on open, 
exposed banks near the Columbia River. It is also represented 
in the Herbarium of the California Academy of Sciences by the 
following specimens: Hornbrook, Siskiyou Co., Calif., Curran ; 
Santiago Creek, Orange Co., Calif., Agnes Bowman ; Salt Creek, 
Tulare Co., Calif., A. Eastwood ; Ketten Pum, Trinity Co., Calif., 
Blankinship ; Mt. Tamalpais, Marin Co., Calif., A. Eastwood ; 
New Idria, San Benito Co., Calif., A. Eastwood ; Dunlap, Fresno 
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