LABIATAE. 



[Vol. III. 



10. Scutellaria campestris Britten. 

 Prairie Skullcap. (Fig. 3084.) 



Scu/eUaria parvn/a var. mollis A. Gray, Syn. Fl. 2: 

 Part I, 3S0. 1878. Not S. mollis R. Br. 



Sculellaria campestris Britton, Mc-111. Torr. Club, $: 

 283. 1894. 



I'libescent, 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, 5"-io" long, obtuse at the 

 apex, rounded or truncate at the base, the lower 

 short- pctioled, the upper sessile; flowers solitary 

 in the axils; corolla },"-$" long, violet or pur- 

 ple, pubescent; gynobase short. 



In dry sandy or gravelly soil. North Carolina ta 

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



II. Scutellaria Brittonii Porter. 

 Britten's Skullcap. (Fig. 30S5.) 



Sculellaria resinosa A. Gray, Syn. Fl. 2: Part i, 



381. 1878. Not Torr. 1S27. 

 Sculellaria Ilriltoiiii Porter, Bull. Torr. Club, 21: 



177. 1894. 



Perennial bj' tuberous-thickened rootstocks, 



viscidl}- glandular, pubescent or pubcrulent, 



branched from the base; stems erect, 4'-8' high, 



leafy. Leaves oblong or oval, sessile and entire 



or the lowest short-petioled and slightly crenu- 



latc, 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, iu"-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. PI. 

 Ohio, 14. 1S36. 



Perennial by filiform stolons, glabrate or 



sparingly pubcrulent; stem slender, weak, 



ascending or reclining, simple or branched, 



6'-\2' 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"-io" 



long; gynobase short. 



On moist banks and iu thickets, Delaware tO' 

 southern Virginia, west to Ohio and Tennessee. 

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



