76 PITTONIA. 
in the last, but herbage light-green (as in C. palustris), the 
leaves orbicular, 2} to 4 inches broad, 2 to 3 inches long, 
the sinus narrow or closed, the margins rather coarsely and 
deeply crenate, the petioles (in mature plant) 6 to 8 inches 
long, with obtuse but very short stipules; cauline leaf nearly 
semiorbicular, 2 inches broad, on a petiole of 1 inch, inserted 
above midway of the stem and with broad clasping stipule: 
sepals apparently only 6 or 7; filaments filiform: carpels 
distinctly stipitate, the stipe gibbous at base by a rather 
notable protuberance. 
An exceedingly well marked species, known to me in only 
two specimens, both in the U. S. Herbarium, one of them 
(in flower) from the Wilkes Expedition collection, obtained 
“near the Cascades” in eastern Oregon; the other by G. R. 
Vasey from the mountains of eastern Washington, 1889. 
As far as descriptive terminology can go, this plant might 
quite as well be C. biflora as not. But the habitat must 
probably exclude it from all close relation to that species; 
and its yellow-green herbage, and large very mallow-like 
foliage remove it completely from all other white-flowered 
Calthas. It is not certain that the plant is even subalpine. 
It may possibly be of wet subsaline plains “ near the Cas- 
cades.” 
C. conFinis. Low and stout, with the usual deep-green 
herbage: basal leaves long-petioled, round-sagittiform, acut- 
ish, subentire, the sinus narrow and rather sharply angular; 
cauline reniform, subsessile, entire: peduncles 2, short (1 to 
2 inches long), stout, divergent: sepals 5 only, broadly obo- 
vate, brownish without, milk-white within: filaments short, 
flattened and linear, the whole stamen shorter than the nu- 
merous pistils. 
Founded on a single specimen, imperfect as to foliage, ob- 
tained in July, 1894, near the Reindeer Station at Port 
Clarence, Alaska, by Dr. James T. White, and deposited in 
the U. S. Herbarium. In this we have a two-flowered 
