132 PITTONIA. 
4. C. OCCIDENTALIS, Wats. Proc. Am. Acad. xxiii. 261. 
Erysimum -occidentale, Robinson, in Gray. Syn. Fl. i. 144. 
This is another seemingly excellent species of Oregon and 
Washington, characterized as having winged seeds. | 
5. C. PERENNIS. Erysimum asperum perenne, Coville, Death 
Val Exp.64,t.3. Plant of subalpine districts of the Califor- 
nian Sierra; and, in general, much less like typical C. asper 
than the plate published by Mr. Coville indicates. In;my 
specimens from above Donner Lake, as well as in some of 
Mr. Coville's, the lowest leaves are oblong-obovate, obtuse, 
perfectly entire, and with long slender petioles. In all the 
forms the pubescence is scanty, insomuch that the herbage 
is green, not at all approaching the cinereous hue of C. asper. 
I have not seen this in fruit either in the field or berbarium. 
From the analogous subalpine perennial of the Rocky 
Mountains it differs notably in habit, foliage, and less saccate 
sepals, as I shall indicate later. 
6. C. aNaustatus. Perennial, slender, erect, 2 feet high 
or more: leaves very narrowly linear-lanceolate, entire or 
few-toothed, few and scattered above, but densely clothing 
the basal part of the stem and adjunct short sterile branches 
of the subligneous caudex, the whole plant subcinereous, the 
stem with the usual divided appressed hairs, the pubescence 
of the leaves parted to the middle only, but appressed, thus 
appearing 3-rayed-stellate: corrolla large, yellow, not regu- 
larly cruciform, the lower pair of petals parallel to each 
other, and, as a pair, distinctly sundered from the upper two, 
these not parallel but divergent from one another: pods in 
a long lax raceme, quadrangular, elongated, slender, ascend- 
ing, slightly incurved, very notably acuminate. 
Sandy banks of the San Joaquin River in the interior of 
California, where specimens in flower and fruit were collee! 
by the writer, 14 April, 1887. 
yate 
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