RUNANUS SCROPHULARIACEA 519 
MIMULUS 
stem stoutish, 44 -6 inches high, simple, or branched from the base: leaves 
oblong or ovate to lanceolate, entire or obscurely toothed, contracted at 
base ; the lower ones petioled; including the petiole 4-12 lines long: calyx- 
teeth broadly lanceolate, acute, a line long, about 144 as long as the rn fo 
corolla rose-purple with yellow and dark purple in the throat; the limb 
4-6 lines broad, obviously bilabiate: capsule acuminate, surpassing the 
calyx; the valves chartaceous. On bare hills, eastern Washington to Ne- 
vada and California. 
E. Breweri Greene Bull. Calif. Acad. No, 3, 101. Viscid-pubescent 
with spreading gland-tipped hairs: stem slender, 1-10 inches high, simple 
or much branched: leaves linear, entire, an inch long, sessile: peduncles 
slender, equalling the calyx: teeth of the calyx short-triangular, equal : 
corolla red, with short tube and spreading limb, 4-5 lines long, little longer 
than the calyx: capsule acute, not longer than the calyx, chartaceous, 
dehiscent by the upper suture, the lower parting at the apex only: the 
placentz united below. In moist places, Brit. Columbia to California, east 
of the Cascade Mountains. 
MIMULUS L. Sp. 634. 1753. 
Annual or perennial herbs with opposite leaves and mostly 
showy yellow blue or pink flowers on solitary peduncles from 
the axils of the upper leaves, or racemose by the reduction of the 
leaves to small bracts. Calyx tubular, persistent, 5-angled or 5- 
ribbed, 5-toothed, the upper tooth usually largest. Corolla irregu- 
lar, its tube cylindric with a pair of ridges on the lower side with- 
in: its limb bilabiate; the upper lip erect or reflexed, 2-lobed, the- 
lower one spreading and 3-lobed. Stamens 4, didynamous, in- 
serted on the corolla-tube: anthers globose, the cells divergent or 
sometimes confluent at the apex. Style filiform: stigma bilamel- 
lar, the lobes equal, ovate or orbicular. Capsule obtuse, not sur- 
passing the calyx, the valves membranaceous, tardily separating 
from the central columnar united placente. 
M. cardinalis Dougl. Lindl. Hort. Trans. ii, 70. t. 3. Villous-pubes- 
cent, viscid above: root perennial: stems stout, 2-4 feet high : leaves ovate 
or the lowest ovate-lanceolate; the upper connate; all erose-dentate, 2-4 
inches long, several-nerved from the base: peduncles 3-4 inches long: calyx 
oblong-prismatlc, an inch or more long, its short teeth nearly equal : corol- 
ja scarlet and yellow, 1-2 inches long, with very oblique limb, the upper 
lip erect with the lobes turned backward, the lower reflexed, the throat 
cylindrical: stamens exserted: capsule oblong, sessile: seeds with a dull 
and loose coat, longitudinally wrinkled. In springy places along streams, 
western Oregon to California and Arizona. 
M. Lewisii Pursh Fl. 427 t. 20. Pubescent and more or less viscid: 
stems numerous from a perennial root, 1-2 feet high, simple: leaves from 
oblong-ovate to lanceolate, denticulate, mostly acute or acuminate, 1-3 
inches long: peduncles longer than the leaves: calyx prismatic-campanu- 
late, 8-10 lines long, its triangular teeth short-acuminate and very acute, 
2-3 lines long: corolla rose-red or purplish, about 14 inches long, with 
broad throat and bilabiate limb, lobes of the upper lip obcordate, flat, of 
the lower lip obovate and sparingly bearded in the throat: stamens not 
exserted: stigmas oblong: capsule oblong: seeds with a dull and loose coat, 
longitudinally wrinkled. Along mountain streams, Brit. Columbia to 
California and Montana, 
M. dentatus Nutt. in Herb. Hook. Pubescent with stout pilose hairs: 
