148 
SCROPHULARIACEAE 
Bracts with purplish or whitish tips. 
Filaments glabrous; galea nearly straight, pubescent. 
Spikes virgate, lax below.5. O. attenuatus. 
Spikes stout, dense. 
Leaves 2.4 to 6 cm. long; stems simple or little branched. 
6. O. densiflorus. 
Leaves 1.2 to 3.6 cm. long; leaves freely branched. 
7. O. castilleioides. 
Filaments hairy: galea hooked at apex.8. O. purpurascens. 
1. O. pusillus Benth. Slender, weak, 4.8 to 9.6 cm. high; herbage 
purplish; leaves pinnatelv cleft into linear or filiform divisions; bracts 
longer than the scattered inconspicuous dark red flowers; corolla 4 to 
6 mm. long.—Low hills. 
2. O. faucibarbatus Gray. Branched from the middle, 1.5 to 3 dm. 
high; herbage greenish: leaves oblong or strap-shaped at base, above 
pinnately cleft; spikes at length elongated and lax; bracts shorter than 
the flowers, palmately cleft; corolla yellow or white, 1.8 to 2.3 cm. long, 
its tube very slender, twice the length of the calyx; sacs of lower lip 4 
mm. deep, deeper than high.—Low fields. 
3. O. erianthus Benth. Johnny-tuck. Stems branched or un¬ 
branched, 1.2 to 1.9 dm. high; leaves pinnately divided into filiform di¬ 
visions ; spikes slender: corolla about 1 cm. long, sulphur-yellow except 
the dark purple upper lip, its thread-like tube at least twice the length of 
the calyx; sacs of the lower lip 4 mm. deep, deeper than high, each sac 
commonly with 2 greenish yellow spots at base of the tooth; folds in the 
throat densely bearded.—Abundant on the plains and low hills or in val¬ 
leys. Var. versicolor Jepson. Corolla white, excepting the purple upper 
lip. Var. roseus Gray. Corolla rose-color.—The varieties near the coast. 
4. O. lithospermoides Benth. Cream Sacs. Commonly simple, 1.4 to 
2.8 dm. high; lower leaves lanceolate, entire, the upper oblong with a 
few slender lobes; spike very dense and thick; bracts nearly equaling the 
flowers, mostly broad at base, palmately cleft above; corolla 2.4 cm. long 
or more, rich cream-color, its tube dilated upward; lower lip strongly 
3-saccate.—Plains and low hills. 
5. O. attenuatus Gray. Commonly slender and strict, 1.2 to 2.8 dm. 
high; leaves linear-lanceolate, attenuate, entire or the upper with 1 or 2 
filiform lobes, 2.4 to 7.2 cm. long, 2 to 10 mm. wide; spikes slender; calyx- 
lobes 4, thread-like, nearly equal; corolla dull white; low r er lip shallowly 
saccate, purple-dotted, its lanceolate teeth large for the size of the co¬ 
rolla, almost as long as the saccate portion and nearly or quite equaling 
the upper lip.—Open fields and low hills. 
6. O. densiflorus Benth. Escobita. Simple or with strict branches, 
1.2 to 3.6 dm. high; leaves oblong-lanceolate to linear with mainly a pair 
of filiform divisions; spike dense, cylindric, 2.4 to 9.6 cm. long; bracts 
with purple and white tips; calyx-segments spatulate, purple; corolla 
1.8 to 2.2 cm. long, purple and white, the lower lip with large crimson 
dots, its teeth nearly as long as upper lip.—Valleys and low hills. 
7. O. castilleioides Benth. Johnny-nip. Corymbosely branched, 1.4 
to 2.4 dm. high; leaves broader than in preceding, entire or with linear 
divisions; spikes short and dense or even almost head-like; bracts with 
