VOL, Iv.] Contributions to Western Botany. 39 
would not yield. I then decided to take up the genus myself, 
but lack of time has prevented till now. 
I find that the lobation and dentation of the leaves are of 
little value, also the inflated calyx with connivent lobes, and the 
shape of the seeds, as well as the pubescence of the pods. 
The number of seeds in the carpels is very treacherous. ‘The 
stamens are almost always twenty, in 4. ofu//folia in two ranks 
and about forty, and the anthers broadly or narrowly oval, tke 
filaments are usually slightly wider at base only and about a line 
long. The pubescence is always stellate or at least branched in 
that fashion, but is very variable, and of almost no value. ‘The 
seeds are always oblique. All the leaves of the genus are three- 
nerved, five-nerved only by accident. 
Taking the order as given by Mr. Greene J. ofulifolia (L,.) 
Watson, comes first under the heading of ‘‘carpels inflated, 
exserted from the calyx, divergent at apex, bivalvate-dehiscent.’’ 
The pods are divergent of necessity and are bivalvate-dehiscent 
a little below the middle to the apex only and not throughout. 
The range is given as from Canada and Florida to Kansas, while 
the plant is rather common in Colorado, at least at the base of 
the mountains on their eastern side at the junction with the 
Plains. Mr. Greene gives the chief characters as ‘‘ leaves round- 
ovate, three-lobed, doubly crenate-serrate, carpels three, fcur, or 
five, connate below, one-third inch long, much inflated, usually 
two-seeded; seeds broadly obovoid.’’ 
In my specimens frcm South Boulder, Colo., collected August 
15, 1878, at an elevation of 6coo feet above the sea, and dis- 
tributed as No. 914, I have one branch with the following leaves 
on it, one leaf orbicular, not lobed, doubly crenate-serrate; two 
leaves rhomboidal, lobeless, and doubly serrate as above, base 
truncate; two leaves rhomboid-ovate, with a very broadly 
cuneate base, barely three to five-lobed; all the above leaves 
are rounded and very obtuse at apex; several leaves broad'y — 
ovate and barely acute and distinctly loted above and in other 
cases below the middle; several others are ovate-lanceolate and 
very acute and lobed as above. ‘The leaves are from one-half to 
two and one-half inches long. ‘The pedicels are about an inch 
long, densely stellate pubescent, the stalk of the stellate hair 
