not crowded, subsessile, subtended by small ovate acuminate bracts 2-3 mm. 

 long; pedicels in fruit not over 1.5 mm. long; calyx tubular-campanulate, 6-7 mm. 

 long at anthesis, the pellucid-punctate acute teeth ovate-deltoid or ovate and 

 1.5-2 mm. long: corolla pink-lavender to deep reddish-purple, the lobes purplish, 

 the throat red-purple striped or maculate, finely pubescent, 2-3 cm. long, the 

 tube subequaling the calyx, the upper lobe entire, the lower lobes inconspicuously 

 emarginate and subentire; filaments villous below; anthers glabrous or sparsely 

 short-villous; fruiting calyx turbinate, 6-7 mm. long, about 5 mm. in diameter at 

 base, the rigid teeth slightly incurved; cocci brown, 3-angled, about 3 mm. long, 

 the ridges hyaline. 



In wet soil of bottomlands along streams mostly in e. Tex., May-June; endemic. 



9. Stachys L. Hedge-nettle 



Annual, biennial or perennial herbs, mostly pubescent or hispid; flowers in 

 verticils to form dense or interrupted terminal racemes or spikes, sometimes in 

 the upper leaf axils; calyx usually campanulate, 5- to 10-nerved, 5-toothed with 

 the teeth nearly equal and erect or spreading; corolla mostly reddish or purplish, 

 the narrow tube not dilated at the throat and strongly 2-lipped; upper corolla lip 

 erect, often arched, concave, entire or emarginate; lower corolla lip spreading, 

 3-lobed, the middle lobe broader than the often deflexed lateral ones and some- 

 times 2-lobed; stamens 4, didynamous, ascending under the upper corolla lip, the 

 anterior pair the longer; anthers contiguous in pairs, the sacs divergent; ovary 

 deeply 4-lobed; style 2-cleft, the lobes subulate; cocci ovoid or oblong, obtuse. 



Nearly 300 species mostly in the North Temperate Zone, with several in South 

 America and South Africa. 



1. Leaves sessile to subsessile, the petiole usually much less than 1 cm. long (2) 



1. Leaves distinctly petiolate, the petiole typically much more than 1 cm. long (3) 



2(1). Calyx lobes three fourths to fully as long as the tube 1. S. palustris. 



2. Calyx lobes about half as long as the tube 2. S. Nuttallii. 



3(1). Annual or biennial with decumbent or weakly erect stems; leaves crenate; 

 mostly in central and south Texas 3. S. crenata. 



3. Perennials with erect stems; leaves dentate or serrate; in eastern Texas and/or 



eastern Oklahoma (4) 



4(3). Plant glabrous or nearly so; inflorescence essentially glabrous; petioles 

 less than one fourth as long as the blades 4. S. tenuifolia. 



4. Plant more or less hirsute; inflorescence puberulent or glandular-puberulent; 



petioles one third to one half as long as the blades 



5. S. floridana. 



1. Stachys palustris L. 



Rhizomatous perennial, simple or branched, 2-7 dm. tall, apparently hairy 

 throughout and often also glandular; stem typically with long coarse spreading or 

 somewhat retrorse hairs along the angles and shorter more slender frequently 

 viscid or gland-tipped hairs along the sides or all around; leaves sessile or some 

 near middle of stem short-petiolate (to 1 cm. long); lowermost leaves short and 

 deciduous, the others triangular-lanceolate or ovate-lanceolate to elliptic, acute 

 to acuminate, broadly rounded to truncate-subcordate at base, 3.5-9 cm. long and 

 to 4 cm. wide, crenate; inflorescence a series of verticils, the lower often axillary 

 to foliage leaves, the others to progressively reduced bracts; calyx 6-9 mm. long, 

 pubescent with slender gland-tipped hairs and long stout glandless ones, the 

 narrow lobes three fourths to fully as long as the tube and tapering to a slender 

 firm point; corolla purplish, white-maculate, 1-1.6 cm. long, the tube only slightly 

 if at all surpassing the calyx, abruptly expanded on the lower side of the level 



1429 



