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MIMULUS SCROPHULARIACEZ 523 
GRATIOLA 
long, entire or sparingly toothed toward the apex, glabrous below, pilose 
above with long white jointed hairs: peduncles filiform, erect, 1-2 inches 
long, usually only one to each plant: calyx tubular-campanulate, about 3 
lines long, its triangular acute. teeth nearly equal: Pam golden yellow, 
3-4 lines long, its nearly equal lobes barely emarginate. In mountain 
marshes, southern Oregon to California. 
M. pilosus Watson Bot. King 225. Herpestis pilosa Benth.  Pilose- 
pubescent throughout with soft white hairs: stem terete, 3-12 inches high, 
paniculately branched from the base: root annual: leaves lanceolate or 
narrowly oblong, sessile, entire, 1-3 inches long: peduncles slender, 1-2 
inches long: calyx campanulate, 5-cleft, the tube not prismatic nor angled, 
almost nerveless, becoming enlarged in fruit, the 5 lobes almost subulate, 
very acute, somewhat unequal: corolla bright yellow, 3-4 lines long, rather 
obscurely bilabiate, usually with a pair of brown spots on the lower lip: 
capsule oblong-ovate, acute. On sandy bars along streams, Washington 
to California and the Rocky Mountains. 
13 GRATIOLA L. Sp. 17. (1753.) 
Erect or diffuse herbs with opposite entire or dentate leaves, 
and yellow or whitish flowers solitary in the axils of the upper 
leaves. Calyx 5-parted, the segments narrow, slightly unequal. 
Corolla irregular, with cylindric tube and more or less bilabiate 
limb: upper lip entire, emarginate or 2-cleft; lower one 3-lobed. 
Antheriferous stamens 2, the posterior pair, the anterior pair rep- 
resented by rudiments or wanting: filaments filiform : anther-cells 
distinct, transverse and separated by a broad connective, or par- 
allel and vontiguous. Style filiform, with dilated slightly 2-lobed 
stigma. Capsule loculicidally and septicidally dehiscent, ovoid 
orglobose, 4-valved. Seeds numerous, longitudinally and trans- 
versely striate. 
G. Virginiana L. Sp. 17. _Puberulent and somewhat glandular, or 
below glabrous: stem erect, at length widely branching from the base, 3-10 
inches high, from an annual root: leaves commonly glabrous, oblong or 
oblong-lanceolate, sessile, narrowed at both ends, denticulate, 1-2 inches 
long: peduncles slender, glandular, shorter than or equalling the leaves, 
‘2-bracteolate under the calyx; bractlets as long as the calyx or longer: 
her lanceolate, acute, about 3 lines long: corolla 4-6 lines long, with 
yellowish tube barely twice the length of the calyx, and whitish lobes; 
the 2 upper emarginate: sterile filaments minute or none: anther-cells 
transverse, separated by a broad connective: capsule ovate, about equalling 
the calyx. In wet or muddy places, California to Brit. Columbia and 
across the Continent. . 
G. ebracteata Benth. DC. Prodr. x. 595. Nearly glabrous and ob- 
scurely glandular: stem stout, 1-6 inches high, branching and flowering 
from the base: leaves lanceolate, entire or sometimes sparingly and sharp- 
ly denticulate, sessile by a rather broad base: peduncles slender, as long as 
or shorter than the leaves, ebracteate: sepals foliaceous, lanceolate, at 
length 4-6 lines long, equalling the yellowish corolla: capsule globose, 
somewhat 4-angled, much shorter than the calyx. On the margin of pools, 
California to Brit. Columbia. 
14 ILYSANTHES Raf. Ann. Nat. 14. (1820.) 
Glabrous annual or biennial herbs with opposite sessile leaves 
and small purplish flowers solitary in the axils of the upper leaves. 
Calyx 5-parted, the segments linear, not. subtended by bractlets. 
