LABIATAE. 



VOL. III. 



i. Stachys hyssopifolia Michx. Hyssop 

 Hedge Nettle. Fig. 3615. 



5. palustris Walt. Fl. Car. 162. 1788. Not L. 1753. 

 S. hyssopifolia Michx. Fl. Bor. Am. 2 : 4. 1803. 



Perennial, glabrous or very nearly so through- 

 out, sometimes slightly hirsute at the nodes ; 

 stem slender, usually branched, erect or nearly 

 so, i-i long. Leaves thin, linear, acute at 

 both ends, or the uppermost rounded at the 

 base, short-petioled or sessile, entire, or spar- 

 ingly denticulate with low teeth, i'~2 r long, 

 i"-2$" wide, the uppermost reduced to short 

 floral bracts ; clusters few-several-flowered, 

 forming an interrupted spike; calyx glabrous 

 or slightly hirsute, 2"-3" long, its teeth lan- 

 ceolate-subulate, nearly as long as the tube; 

 corolla about 7" long, light purple, glabrous. 



In fields and thickets, Massachusetts to Florida, 

 Indiana, Michigan and Virginia. July-Sept. 



2. Stachys atlantica Britton. Coast' Hedge Nettle. 

 Fig. 3616. 



Stachys atlantica Britton, Man. 792. 1901. 



Perennial, glabrous or with a few hairs at the nodes of 

 the stem, weak, diffuse, 8'-i6' long. Leaves thin, oblong 

 or linear-oblong, obtuse or obtusish at the apex, narrowed, 

 or the upper sometimes rounded at the base, remotely den- 

 ticulate or entire, spreading, 2' long or less, 2"-5" wide; 

 fruiting calyx glabrous, broadly campanulate, about 2\" 

 long, its teeth triangular-ovate, acuminate, more than half 

 as long as the tube; corolla purplish. 



In wet meadows and marshes, Long Island to eastern Penn- 

 sylvania. Perhaps a wet-ground race of the preceding species. 

 Aug.-Sept. 



3. Stachys ambigua (A. Gray) Britton. 

 Dense-flowered Hedge Nettle. Fig. 3617. 



Stachys hyssopifolia var. ambigua A. Gray, Syn. Fl. 



2: Part i, 387. 1878. 

 5". ambigua Britton, Mem. Torr. Club 5: 285. 1894. 



Perennial ; stem slender, erect, retrorsely his- 

 pid, at least below, simple or sparingly branched, 

 i-2 high. Leaves oblong, oblong-lanceolate, 

 or linear, pubescent or glabrate, acuminate or 

 acute at the apex, narrowed at the base, 2"-io" 

 wide, i '-3' long, serrulate; clusters in a terminal 

 rather dense spike, and usually also in the upper 

 axils; calyx more or less hirsute, 22" long, its 

 lanceolate-subulate teeth more than one-half as 

 long as the tube ; corolla nearly as in S. hyssopi- 

 folia. 



In moist soil, Massachusetts to Pennsylvania, 

 Georgia, Wisconsin and Kentucky. July Aug. 



