SEGREGATES OF CALTHA LEPTOSEPALA. 79 
long-petioled, inserted near the base of the stem or scape, its 
axillary peduncle short and slender, never much more than 
half as long as the terminal one, its stipules somewhat 
lunate: flower small, the oblong obtuse sepals 5 to 8: 
filaments linear. 
Known only from Yellow Head Pass, in the Rocky Moun- 
tains of British America, where it was collected 13 July, 
1898, by Mr. W. Spreadborough, who records that it grows 
by the margins of alpine rivulets. It is n. 19,250 of the 
Canadian Survey herbarium. It is not named in reference 
to any likeness to the celandine of modern botany ; but it is 
most closely imitative of what was formerly known to all 
botanists as Chelidonium minus, i. e. Ficaria ranunculoides. 
As a species it is less intermediate between the two groups 
than is the last; for only one specimen shows a true scape, 
all the others having a solitary flower stem, and this bracted 
and forked peculiarly near the base. 
** Acaulescent ; all the flowers borne on axillary and bract- 
less peduncles. 
C. HowErLri. C. biflora, Howell, FI. i. 20, not DC. C. lep- 
tosepala, var. Howellii, E. Huth, in Helios, ix. 68. Slender 
and rather flaecid, the long-petioled round-reniform leaves 2 
to 3 inches broad, the rounded basal lobes mostly closing the 
sinus, the apex often distinctly retuse, the whole margin 
from entire to repand-dentate: scapes 2 or 3, often much 
exceeding the leaves: sepals about 10, large for the plant, 
variable, some oblong-linear, others in the same flower obo- 
vate-oblong, all obtuse: filaments filiform. 
Common at subalpine elevations in the mountains of 
Oregon, thence southward to at least middle California in 
the Sierra Nevada. Good specimens have been distributed 
by Mr. Howell, from several Oregon stations, especially from 
the base of Mt. Hood, 1880. Mr. H. E. Brown has sent it 
abroad from Mt. Shasta, June, 1897. Mrs. Austin obtained 
and distributed large and beautiful flowering specimens 
