556 LABIATvE Scutellaria 



BRUXELLA 



or the lower obovate, 3-12 lines long, all abruptly contracted at base to 

 short or moderately long petioles, obtuse to acute at the apex, entire : 

 flowers solitary, in the axils of the upper leaves: peduncles 1-3 lines long . 

 calyx hardly 2 lines long in flower, becoming moderately enlarged in fruit, 

 minutely puberulent: corolla blue, 10-12 lines long, puberulent, with short 

 tube and broad throat, the broad lower lip puberulent within. In moist 

 soil along streams, Washington to California and Nevada. 



S. galericulata L. Sp. 599. Puberulent or pubescent : stems solitary 

 at the ends of underground perennial shoots, erect, usually branched, 1-3 

 feet high : leaves thin, oblong-lanceolate to ovate-oblong, acute at the apex, 

 dentate with low teeth, or the upper entire, 1-1 3^ inches long, rounded or 

 subcordate at base, the uppermost much smaller and sessile or nearly so, 

 the lower ones petioled: flowers solitary in the axils of the upper leaves, 

 short-peduncled : calyx puberulent, a line long, split to the base, enlarged 

 in fruit: corolla blue, puberulent, 8-12 lines long, with a slender tube and 

 slightly enlarged throat : nutlets densely muriculate-scabrous. In low wet 

 places, Brit. Columbia to Oregon, Arizona and the Atlantic States. 



Tribe 6 Stachydess Benth. in DC. Prodr. xii, 407. Herbage 

 bitter -aromatic or scarcely aromatic. Calyx 5-lO-nerved or veiny. 

 Stamens 4, a U with anthers, parallel and mostly ascending under 

 the concave and commonly galeate upper lip of the bilabiate corolla, 

 the lower or outer pair longest, except in Phlomis. Anthers 2- celled 

 or confluently somewhat 1- celled. 



16 BRUNELLA L. Sp. 600. 



Perennial herbs with petioled leaves and purple or white flow- 

 ers in dense bracted terminal and axillary spikes or heads. Calyx 

 oblong, reticulate-veined, about 10-nerved, deeply bilabiate, closed 

 in fruit: upper lip nearly truncate, or with 3 short teeth : lower 

 lip 2-cleft, its teeth lanceolate. Corolla-tube inflated, slightly nar- 

 rowed at the mouth, its limb strongly bilabiate: upper lip entire, 

 arched: lower lip spreading, 3-lobed. Stamens 4, all fertile, the 

 lower pair longest: filaments of the longer stamens 2-toothed at 

 the summit, one of the teeth bearing the anther, the other sterile. 

 Anthers 2-celled, the cells divergent or divaricate. Nutlets ovoid, 

 smooth. 



B. vulgaris L. Sp. 600. Pubescent to nearly glabrous : stems numer- 

 ous, slender, erect to procumbent, 2-24 inches long, usually simple: leaves 

 thin, ovate or oblong to oblong-lanceolate, usually narrowed at base, entire 

 or crenate, 2-4 inches long, the lowest commonly shorter, and sometimes 

 subcordate, all petioled : spikes usually sessile, 1-2 inches long dense, ter- 

 minal : bracts broadly ovate-orbicular, strongly nerved, more or less hirsute 

 and ciliate : calyx cylindraceous, about 4 lines long, more or less hirsute, 

 the teeth all cuspidate and ciliate: corolla blue or violet to nearly white, 

 1-8 lines long. Common in open places, Alaska to California and across 

 the Continent : also in Asia. 



17 PHYSOSTEGIA Benth. Lab. 504 (1834) 



Erect perennial herbs with serrate, dentate or entire leaves and 

 middle-sized bilabiate flowers in terminal bracted spikes or ra- 

 cemes. Calyx campanulate or oblong, membranaceous, enlarged 

 and remaining open in fruit, 10-nerved, equally 5-toothed. Co- 

 rolla much longer than the calyx, its tube gradually much en- 



