792 FLORA. 



nerved, 5 -toothed, the teeth nearly equal in our species. Corolla purple in our 

 species, its tube narrow, the limb strongly 2-lipped; upper lip erect, concave, entire 

 or emarginate; lower lip spreading, 3-cleft, the middle lobe broader than the lateral 

 ones, sometimes 2-lobed. Anthers contiguous in pairs, 2-celled, the sacs mostly 

 divergent. Nutlets ovoid or oblong. [Geeek, a spike, from the spicate inflores- 

 cence.] About 150 species, of -wide distribution. Besides the following, some 12 

 others occur in the southern and western U. S. 



Leaves narrowed at the base, linear to lanceolate or oblong. 

 Stem glabrous ; leaves entire, or nearly so. 



Leaves linear, 2-5 mm. wide. 1. S. hyssopifolia. 



Leaves oblong to linear-oblong, 4-10 mm. wide. 2. S. Atlantica. 



Stem retrorsely hirsute ; leaves serrate. 



Leaves slightly pubescent ; calyx-teeth lanceolate. 3. S. ambigua. 



Whole plant densely clothed with stiff appressed hairs. 4. S. arenicola. 

 Leaves cordate or truncate at the base, lanceolate to ovate. 

 Stem glabrous or nearly so. 



Calyx-teeth lanceolate-subulate, nearly as long as the tube. 5. S. tenuifolia. 

 Calyx-teeth triangular, about one-fourth as long as the tube. 6. S. latidens. 

 Stem hirsute. 



Leaves all very short-petioled, lanceolate to oblong. 7. S. palustris. 



Leaves, at least the lower, slender-petioled. 



Leaves lanceolate or ovate, acute or acuminate. 



Plant dark green ; leaves firm ; petioles 6-36 mm. long. 



8. S. asp era. 

 Plant light green ; leaves membranous ; petioles 1-5 cm. long. 



9. S. cordata. 

 Leaves ovate, obtuse ; diffuse annual. 10. S. arvensis. 



Whole plant densely white-villous ; introduced species. 11. S. Ger?nanica, 



i. Stachys hyssopifolia Michx. Hyssop Hedge Nettle. (I. F. f. 3116/ 

 Perennial, glabrous or nearly so, sometimes slightly hirsute at the nodes; stem slen 

 der, erect, 3-5 dm. high. Leaves linear, acute at both ends, short-petioled or sessilej 

 entire, or sparingly denticulate with low teeth, 2-5 cm. long, the uppermost reducec 

 to short bracts ; clusters forming an interrupted spike; fruiting calyx glabrous oi 

 slightly hirsute, 6 mm. long, its teeth lanceolate-subulate, nearly as long as th< 

 tube; corolla about 1.5 cm. long, light purple, glabrous. In fields and thickets 

 Mass. to Fla., Mich, and Va. July-Sept. 



2. Stachys Atlantica Britton, n. sp. Coast Hedge Nettle. Perennial 

 glabrous, or with a few hairs at the nodes, weak, 2-4 dm. high. Leaves thin 

 mostly oblong and obtuse or obtusish, spreading, 2-5 cm. long, usually over 5 mm 

 wide, remotely denticulate, the upper sometimes rounded at the base; corolla 1 cm| 

 long; fruiting calyx 5 mm. long, its teeth triangular-ovate, acuminate. In marsh; 

 ground, L. I., to eastern Penn. Type from Southampton, L. I. Aug.-Sept. 



Stachys annua L. An annual European species with lanceolate to oblong leaves, a 

 least the lower crenate-dentate, a slender puberulent stem, and villous calyx, has bee: 

 found at one locality in Kansas, and in ballast about the seaports. 



3. Stachys ambigua (A. Gray) Britton. Dense- flowered Hedge Nettle 

 (I. F. f. 31 17.) Perennial; stem retrorsely hispid, at least below, 3-6 dm. high, 

 Leaves oblong, oblong-lanceolate, or linear, pubescent or glabrate, acuminate cfc 

 acute, 4-20 mm. wide, 2 8 cm. long, serrulate; clusters in a terminal rather dens|jos 

 spike, and usually also in the upper axil-; calyx more or less hirsute, 5 mm. lonr. 

 it> lanceolate-subulate teeth more than one-half as long as the tube. In moist soi 

 Penn. to Ga., 111. and Ky. July Aug. 



4. Stachys arenicola Britton, n. sp. Sand Hedge Nettle. IVrennia 

 very densely pubescent, 5-8 dm. high. Leaves lanceolate, narrowed at the basi 

 sessile, finely crenate-dentate, acuminate, 6-10 cm. long, the upper much snialle: 

 upper bracts little longer than the flowers; calyx-teeth subulate-acicular, aboua 

 long as the tube; corolla about I cm. long. In sandy soil, southern N. Y. to II 

 and Mich. Type from New Dorp, Staten Island, N. Y. 



5. Stachys tenuifolia Willd. Smooth Hedge Nettie. (I. F. f. 311? 

 Perennial; stem smooth, or slightly scabrous on the angles, slender. 3-8 dm. hig 

 Leaves Lanceolate, oblong, or ovate-lanceolate, slender-petioled, thin, acuminate 



