LABIATAE. 



[Vol.. III. 



10. Scutellaria campestris Britton. 

 Prairie Skullcap. (Fig. 3084.) 



Scutellaria parvula var. mollis A. Gray, Syn. Fl. 2 



Part i, 380 



1878. Not 5. mollis R. Br." 



Scutellaria campestris Britton, Mem. Torr. Club, 5: 

 283. 1894. 



Pubescent, often densely so, perennial by 

 tuberous thickened rootstocks. Stems diffuse, 

 or ascending, branched, 4 / -i2 / long, rather 

 stouter than those of the preceding species. 

 Leaves ovate, or the lower almost orbicular, en- 

 tire, or dentate, s^-io" long, obtuse at the 

 apex, rounded or truncate at the base, the lower 

 short-petioled, the upper sessile; flowers solitary 

 in the axils; corolla 3 // -5 // long, violet or pur- 

 ple, pubescent; gynobase short. 



In dry sandy or gravelly soil, North Carolina to 

 Illinois, Iowa and the Indian Territory. April-July. 



11. Scutellaria Brittonii Porter. 

 Britton' s Skullcap. (Fig. 3085.) 



Scutellaria resinosa A. Gray, Syn. Fl. 2: Part I, 



381. 1878. Not Torr. 1827. 

 Scutellaria Brittonii Porter, Bull. Torr. Club, 21: 



177. 1894. 



Perennial by tuberous-thickened rootstocks, 

 viscidly glandular, pubescent or puberulent, 

 branched from the base; stems erect, 4/-S' high, 

 leafy. Leaves oblong or oval, sessile and entire 

 or the lowest short-petioled and slightly crenu- 

 late, obtuse at the apex, rather prominently 

 veined on the lower surface, 6 // -i2 // long, the 

 upper scarcely smaller; flowers solitary in the 

 axils; pedicels mostly shorter than the calyx; 

 corolla pubescent, blue, io // -I5 // long, the tube 

 narrow below, enlarged above into the throat; 

 gynobase short. 



Nebraska (according to Coulter), Colorado and 

 Wyoming. June-July. 



12. Scutellaria saxatilis Riddell. 

 Rock Skullcap. (Fig. 3086.) 



Scutellaria saxatilis Riddell, Suppl. Cat. PL 

 Ohio, 14. 1836. 



Perennial by filiform stolons, glabrate or 



sparingly puberulent; stem slender, weak,. 



ascending or reclining, simple or branched, 



6 / -i2 / long. Leaves ovate, slender-petioled, 



thin, coarsely crenate, obtuse at the apex,. 



cordate at the base, i / -2 / long, or the lower 



nearly orbicular, and the upper lanceolate, 



subacute and entire; flowers solitary in the 



upper axils, or clustered in a terminal leafy - 



bracted loose raceme; bracts longer than the 



pedicels; fruiting calyx about 2" long; corolla 



light blue, very nearly glabrous, 8 // -lo // 



long; gynobase short. 



On moist banks and in thickets, Delaware to 

 southern Virginia, west to Ohio and Tennessee. 

 Ascends to 3000 ft. in Virginia. May -July. 



