9 2 



LABIATAE. 



[Vol. III. 



16. GALEOPSIS L. Sp. PI. 579- 1753- 

 Erect annual branching herbs, with broad or narrow leaves, and rather small yellow red 

 purple or mottled verticillate-clustered flowers in the upper axils, or forming terminal dense 

 or interrupted spikes. Calyx campanulate or tubular-campanulate, 5-10-nerved, 5-toothed, 

 the teeth nearly equal, spinulose. Corolla-tube narrow, the throat expanded, the limb 

 strongly 2-lipped; upper lip erect, concave, entire; lower lip spreading, 3-cleft, the middle 

 lobe obcordate or etnarginate. Stamens 4, didynamous, ascending under the upper lip of the 

 corolla, the anterior pair the longer; anthers 2-celled, the sacs transversely 2-valved, the 

 inner valve ciliate, the outer smooth, larger. Ovary deeply 4-parted; style 2-cleft at the 

 summit. Nutlets ovoid, slightly flattened, smooth. [Greek, weasel-like.] 



About 6 species, natives of Europe and Asia. 

 Plant puberulent; leaves linear or lanceolate. i. G. Ladanum. 



Plant hispid; leaves ovate. 2. G. Tetrahit. 



I. Galeopsis Ladanum L. Red Hemp- 

 Nettle. Iron wort. (Fig. 3106.) 



Galeopsis Ladanum L. Sp. PI. 579. 1753- 



Puberulent ; stem slender, erect, much 

 branched, 6 / -iS / high, the branches ascend- 

 ing. Leaves linear, oblong, or lanceolate, 

 mostly short-petioled, acute at both ends, 

 dentate, or nearly entire, i / -2 / long, 2 // -8 // 

 wide; flower-clusters mainly axillary, distant; 

 calyx-teeth subulate-lanceolate, shorter than 

 or equalling the tube; corolla 6 // -8 // long, red 

 or purple to white and variegated, twice the 

 length of the calyx. 



In waste places and on ballast, New Brunswick 

 to Michigan and New Jersey. Adventive or natu- 

 ralized from Europe. Native also of Asia. July- 

 Oct. 



2. Galeopsis Tetrahit L,. Hemp-Nettle. 



Hemp Dead Nettle. (Fig. 3107.) 

 Galeopsis Tetrahit L- Sp. PI. 579- 1753- 



A coarse and rough-hairy herb, the stem rather 

 stout, branched, i-3 high, swollen under the 

 joints. Leaves ovate, membranous, slender-peti- 

 oled, acuminate at the apex, rounded or narrowed 

 at the base, coarsely dentate, 2 / -5 / long, 1 / 2 / -2% / 

 wide; flower-clusters axillary, dense, or in a short 

 leafy-bracted spike; calyx-teeth needle-pointed, 

 bristly, as long as or longer than the tube; corolla 

 8 // -i2 // long, pink or pale purple variegated with 

 white, about twice the length of the calyx. 



In waste places, Newfoundland to British Columbia 

 and Alaska, south to North Carolina and Michigan. 

 Naturalized from Europe. Native also of Asia. Old 

 names, Bee-, Dog-, or Blind-nettle, Stinging Nettle, 

 Nettle-, Wild-, or Bastard-hemp. June-Sept. 



17. LEONURUS L. Sp. PI. 584. 1753. 



Tall erect herbs, with palmately cleft, parted or dentate leaves, and small white or pink 

 flowers verticillate in dense axillary clusters. Calyx tubular campanulate, 5-nerved, nearly 

 regular and equally 5-toothed, the teeth rigid, subulate or aristate. Tube of the corolla in- 

 cluded or slightly exserted, its limb 2-lipped; upper lip erect, concave or nearly flat, entire; 

 lower lip spreading or deflexed, 3-lobed, the middle lobe broad, obcordate or emarginate. 

 Stamens 4, didynamous, the anterior pair the longer, ascending under the upper lip of the 

 corolla; anthers 2-celled, the sacs mostly parallel. Ovary deeply 4 parted; style 2-cleft at 

 the summit. Nutlets 3-sided, smooth. [Greek, lion's-tail.] 



About 10 species, natives of Europe and Asia. 

 Lower leaves palmately 2-5 cleft, the upper 3-cleft. 1. L. Cardiaca. 



Leaves deeply 3-parted, the segments cleft and incised. 2. 



Leaves coarsely dentate or incised-dentate. 3. 



L. Sibiricus. 



L. Marrubiaslrnm. 



