MINT FAMILY 743 



1. T. oblongum Benth. Annual; stem branched, 1-3 dm. high, sof t-villous ; 

 leaves short-petioled ; blades oblong to oval, membranous, 1-4 cm. long, soft- 

 pubescent on both sides; flower-clusters axillary, much shorter than the leaves; 

 calyx-lobes subulate, longer than the tube and nearly equalling the corolla; 

 corolla about 6 mm. long; filaments 8-10 mm. long. Moist places: Wash. Ida. 

 Calif. Submont. Je-Jl. 



4. SCUTELLARIA L. SKULLCAP. 



Annual or perennial herbs, sometimes shrubby. Leaves opposite, entire or 

 toothed. Flowers perfect, in terminal racemes or panicles, often leafy-bracted. 

 Calyx campanulate, 2-lipped; lips entire, the upper with a crest. Corolla blue, 

 violet, or white; throat dilated; limb 2-lipped, the upper lip arched, the lower 

 3-lobed; lateral lobes small, the middle one large and spreading. Stamens 4, 

 didymous; anthers ciliate, those of the upper pair 2-celled, those of the lower 

 1-celled. Nutlets papillose or tubercled. 



Flowers in axillary and terminal racemes. 1. S. lateriflora. 



Flowers solitary in the axils of the leaves. 

 Perennials, with horizontal rootstock. 



Leaf-blades lanceolate or ovate, more or less distinctly toothed, at least the lower 



ones. 



Leaf-blades lanceolate, acute. 2. S. galericulata. 



Leaf-blades ovate, obtuse. 6. S. veronici folia. 



Leaf-blades entire or nearly so, ovate, oblong or linear. 

 Corolla blue or violet; nutlets not raised on a gynobase. 



Pedicels shorter than the calyx; calyx and corolla villous outside; lower 



lip of the latter glabrous within. 3. S. Brittoni. 



Pedicels not shorter than the calyx; calyx and corolla densely short-pubes- 

 cent; lower lip of the latter bearded within. 

 Corolla 12-18 mm. long; leaves elliptic, usually entire. 



4. S. anlirrhinoides. 

 Corolla 18-30 mm. long. 



Leaves linear or oblong, entire; corolla-tube slender, gradually 



widening upward. 5. S. angustifolia. 



Lower leaves ovate, usually toothed; corolla-tube ample, abruptly 



widening upwards. 6. S. veronici folia. 



Corolla yellow; nutlets raised on a gynobase. 7. S. Footeana. 



Perennials, with a woody caudex. 8. S. resinosa. 



1. S. lateriflora L. Perennial, with a creeping rootstock; stem 2-10 dm. 

 high, glabrous or sparingly puberulent above, branched; leaves slender-petioled ; 

 leaf -blades thin, ovate or ovate-lanceolate, 2-6 cm. long, coarsely serrate, rounded 

 or cordate at the base; calyx 2-4 mm. long; corolla blue, 6-7 mm. long. Along 

 streams and swamps: Newf. Fla. Ida. B.C. Plain Submont. Je-S. 



2. S. galericulata L. Stem strigose, at least on the angles, 2-9 dm. high; 

 leaf-blades oblong or oblong-lanceolate, acute, crenate, truncate or cordate at 

 the base, more or less densely strigose and often gland ular-granuliferous beneath; 

 calyx 3.5-5 mm. long, minutely pubescent; corolla "blue, or rarely pink or white, 

 15-18 mm. long, pubescent. River banks and swamps: Newf. N.C. Ariz.- 

 Alaska; Eurasia. Plain Submont. Je-Au. 



3. S. Brittoni Porter. Stem puberulent, 1-3 dm. high; leaves entire, 

 nervose, finely puberulent, oblong to oval, 1-3 cm. long; calyx puberulent, 5-6 

 mm. long; corolla about 2 cm. long, gradually dilated upwards. S. resinosa A. 

 Gray, not Torr. S. virgulata Nels. Hillsides and valleys: Wyo. Colo. Sub- 

 mont. Mont. My-Jl. 



4. S. antirrhinoides Benth. Stem branched, diffuse or ascending, 1-3 

 dm. high, puberulent; leaves elliptic, grayish puberulent, 1-2 cm. long, obtuse; 

 calyx 4 mm. long, finely puberulent. Moist shady places: Ore. Ida.- -Nev.- 

 Calif. Submont. Je-Jl. 



5. S. angustifolia Pursh. Stem 1-3 dm. high, minutely puberulent; lower 

 leaves oblong or oval, the upper linear to oblong, usually entire, 1-2.5 cm. long, 

 the radical ones often orbicular or cordate; calyx about 4 mm. long, puberulent. 

 Moist ground: B.C. Mont. Utah Calif. Submont. My-Jl. 



6. S. yeronicifolia Rydb. Stem 2^ dm. high, finely puberulent, more or 

 less purplish; leaves ovate, obtuse, coarsely crenate, 1-4 cm. long, minutely 



