STUDIES IN THE CRUCIFER.E. 127 
now and then seen a Stanleya whose roots sent up young 
shoots from underground and at the distance of a foot or two 
from the parent stem. But these more slender and reedy 
things of the Stanleya region have as their normal mode of 
growth just this which in Stanleya is exceptional. I must 
not allow myself to be interpreted as meaning that Scheno- 
crambe and Stanleya are very near allies. The fruits of the 
two are without any special likeness to each other; though 
. the flower buds, in both quite large for the size of the flower, 
are much alike; and there are agreements between the two 
which are unmistakable in the texture and the sensible 
qualities of the herbage, as also in the cut of the foliage in 
those of the species having divided leaves. 
With me the type of the new genus is— 
1. SCHŒNOCRAMBE LINIFOLIA. Nasturtium linifolium, 
Nutt. Journ. Philad. Acad: vii. 12. Sisymbrium linifolium, 
Nutt. T. & G. Fl. i. 91. Erysimum? glaberrimum, H. & A. 
Bot. Beech. 323.. E. linifolium, Jones, Proc. Calif. Acad. 2 
ser. v. 622. My first study of this species was made some 
seven years since, in just the region whence Nuttall had his 
original materials. The stems are simple only when young 
and beginning to show flower and fruit. Later they branch 
rather freely. The leaves of stem and branches are all nar- 
row and entire, at least after the vernal season is past; but 
the earliest and lower leaves are coarsely few-toothed. T he 
herbage is quite green and without bloom. From this 
northern type, which however is common as far southward 
as southern Wyoming, it seems necessary that the following 
should be distinguished. ; 
2. S. PINNATA. Stouter and taller than the last, very glau- 
cous throughout, apparently never branching, almost leaf- 
less above, the lower leaves rather numerous, pinnatifid into 
from 5 to 8 pairs of obovate-oblong entire segments: raceme 
elongated and with stout rachis. 
