784 FLORA. 



long, blue, minutely puberulent, its tube narrow, gradually expanded above into 

 the throat, its upper lip shorter than the lower. In woods, N. Y. and Penn. to 

 N. Car., III. and Ky. May-June. 



3. Scutellaria incana Muhl. Downy Skullcap. (I. F. f. 3077.) Peren- 

 nial, finely and densely whitish downy, or the upper surfaces of the leaves gla- 

 brous; stem 6-12 dm. high. Leaves ovate, oval, or oblong, rather firm, slender- 

 petioled, acute, crenate-dentate. 7-11 cm. long; racemes terminal, usually numer- 

 ous and panicled; corolla 18-20 mm. long; upper lip of the corolla slightly 

 longer than the lower. In moist woods and thickets, Ont. to 111., Kans., N. Car. 

 and Ala. June-Aug. 



t. Scutellaria cordifolia Muhl. Heart-leaved Skullcap. (I. F. f. 

 .) Perennial, densely glandular-pubescent; stem 3-9 dm. high, often simple. 

 Leaves slender-petioled, broadly ovate, crenate-dentate all around, 5-10 cm. long, 

 all but the uppermost cordate at the base; racemes terminal, narrow; bracts ovate, 

 mostly entire, commonly longer than the pedicels; corolla puberulent, 2-2.5 cm. 

 long, blue with the lower side lighter or white, its tube narrow, its throat moder- 

 ately dilated. In woods and thickets, Penn. to Fla., west to Wis., Kans. and Tex. 

 June-Aug. S. venosa Kearney (S. versicolor minor Chapm.) appears to differ from 

 this only in size. 



5. Scutellaria pilosa Michx. Hairy Skullcap. (I. F. f. 3079.) Peren- 

 nial; stem slender, 3-8 dm. high. Leaves ovate, oval, or oblong, petioled, obtuse, 

 or the upper subacute, crenate, 2-8 cm. long; racemes terminal, sometimes also in 

 the upper axils; bracts oblong or spatulate, entire, longer than the pedicels; 

 corolla blue, 12-16 mm. long, its lower lip and lateral lobes somewhat shorter 

 than the arched upper one. In dry sandy woods and thickets, N. Y. and Penn. to 

 Mich., Mo., Fla. and Tex. May-July. 



Scutellaria pil6sa hirsuta (Short) A. Gray. Stouter, sometimes 9 dm. high, hirsute; 

 leaves larger, coarsely crenate. Va. and Ky. 



6. Scutellaria integrifdlia L. Larger or Hyssop Skullcap. (I. F. f. 3080.) 

 Perennial, hoary with a minute down; stem 1.5-6 dm. high. Leaves thin, linear to 

 oblong, petioled, or the upper sessile, obtuse, entire, 2-5 cm. long, or the lower 

 ovate, lanceolate or nearly orbicular, obtuse and sometimes subcordate at the base, 

 often crenate-dentate or incised; racemes terminal; bracts linear-oblong, subacute, 

 longer than the pedicels; corolla blue or whitish underneath, 2-3 cm. long, its 

 large lips nearly equal. In fields, woods and thickets, Conn, and R. I. toW.Va., 

 Fla., La. and Tex. May-Aug. 



7. Scutellaria Drummondii Benth. Drummond's Skullcap. (I. F. f. 

 3081.) Villous-puberulent or pubescent, the branches 0.7-2 dm. long. Leaves 

 ovate, oblong, or obovate, entire, or the lower sparingly crenulate. 8-25 mm. long, 

 the upper sessile, the lower petioled, the uppermost gradually smaller; flowers soli- 

 tary in the. axils, short-peduncled; corolla blue, or the tube nearly white, 8-10 mm. 

 long, pubescent, the lower lip violet, spotted, longer than the upper. Kans. (ac- 

 cording to Smyth), Tex. and Mex. April-June. 



8. Scutellaria resinosa Torr. Resinous Skullcap (I. F. f. 3082.) 

 Minutely canescent or puberulent and usually resiniferous ; stems rigid, tufted, 

 ascending. 1.5-2.5 dm. high. Leaves ovate, oval, or oblong, sessile, or the lower 

 short-petioled, entire, obtuse, 6-12 mm. long; flowers solitary in the axils; corolla 

 violet or nearly white, very pubescent, 12-18 mm. long, its tube narrow and lips 

 nearly equal. On dry plains, Neb. to Tex. and Ariz. May-Aug. 



9. Scutellaria parvula Michx. Small Skullcap. (I. F. f. 3083.) 

 Glabrous, or sparingly puberulent. sometimes slightly glandular; stems 0.7-3 dm. 

 tall. Leaves ovate, oval or lanceolate, or the lower nearly orbicular, entire and 

 sessile, or the lower sparingly dentate and petioled, 6-25 mm. long; flowers soli- 

 tary in the axils; corolla 4-8 mm. long, violet, pubescent. In moist sandy soil, 

 Quebec to Ont.. S. Dak.. N. J., Fla., Neb. and Tex. April-July. 



10. Scutellaria campestris JSritton. Prairie Skullcap. (I. F. f. 3084.) 

 Pubescent; stems diffuse, or ascending, 1-3 dm. long. Leaves ovate, or the lower 

 almost orbicular, entire, or dentate, 1-2 cm. long, obtuse at the apex, rounded or 

 or truncate at the base, the lower short-pttioled, the upper sessile; flowers solitary 



