NEW SPECIES OF CONVOLVULUS. 331 
the seaboard in southern California; sometimes trailing 
over the ground, sometimes twining several feet upon 
shrubs. 
C. pELTOIDEUS. Wholly herbaceous, the root possibly 
rhizomatous: stems 2 or 3 feet long, twining; herbage ci- 
nereously and softly pubescent: lowest leaves broadly cor- 
date-ovate and obtuse, on long and slender petioles, the 
middle cauline somewhat hastately deltoid and broader at 
base than long, acutish, rather short-petioled, those of the 
sterile upper part of the stem with only a trace of the hastate 
basal lobe, thus almost exactly and sharply deltoid: pedun- 
cles solitary in the axils of the middle leaves, not equalling 
the leaves, 1-flowered: calyx subtended by a pair of small 
hastate-deltoid petiolate leaves inserted nearly their own 
length below its base: the broadly oval sepals very unequal, 
the outer ones truncate, the others merely obtuse: corolla 
white: stigmas well surpassing the strongly sagittate an- 
thers. : 
Collected only by the writer, near Tehachapi, Kern Co., 
California, 22 June, 1889. 
C. Macountt. Dwarf and upright, the leafy stems only 
3 to 6 inches high, proceeding from a deep-seated rhizome: 
herbage wholly glabrous; leaves broadly sagittate, 2 inches 
long, on petioles of equal length: peduncles surpassing the 
leaves: bracts very ample, ? to 1 inch long, oval, obtuse, 
broad and somewhat auriculate at base: white corolla also 
very large, more than 2 inches long. 
` Milk River, Assiniboia, August, 1895, Mr. John Macoun ; 
the specimens, under n. 11,883, distributed for C. spithamaus, 
to which species this very distinct new one bears no near 
affinity. 
C. POLYMORPHUS. Herbaceous to the base, probably 
rhizomatous underground, the twining stems 2 to 4 feet 
high ; herbage commonly pale and puberulent: leaves from 
