146 



LABIATAE. 



VOL. III. 



posterior pair rudimentary, or wanting; anther-sacs parallel. Ovary deeply 4-parted; style 

 slender, 2-cleft at the summit. Nutlets smooth; scar of attachment basal and small. [Latin 

 name of some plant.] 



About 15 species, natives of America. The following typical species is the only one known 

 in the United States. 



i. Cunila origanoides (L.) Britton. Stone Mint. 



Sweet Horse-Mint. American Dittany. 



Wild Basil. Fig. 3672. 



Satureia origanoides L. Sp. PI. 568. 1753. 



Cunila Mariana L. Syst. Ed. 10, 1359. 1759. 



Hedyosmos origanoides Kuntze, Rev. Gen. PI. 520. 1891. 



Cunila origanoides Britton, Mem. Torr. Club 5: 278. 1894. 



Plant very aromatic; stem slender, stiff, branched, 

 glabrous, or pubescent at the nodes, erect, 8'-2o' high, 

 the branches ascending. Leaves ovate, sessile or very 

 short-petioled, acute at the apex, sharply serrate, round- 

 ed, truncate or subcordate at the base, i'-ii' long, 

 densely punctate ; flowers nearly \' long, numerous in 

 terminal loose cymose clusters ; corolla purple-pink, one- 

 half as long as the stamens; posterior pair of stamens 

 usually rudimentary. 



In dry woods and thickets, southern New York to Florida, 

 west to Ohio, Missouri, Arkansas and Texas. Aug.-Sept. 



35. LYCOPUS [Tourn.] L. Sp. PL 21. 1753. 



Herbs, perennial by slender stolons or suckers, with erect or diffuse stems, petioled or 

 sessile leaves, and small white or purple flowers, bracted and 'verticillate in dense axillary 

 clusters. Calyx campanulate, regular or nearly so, 4-5-toothed, not bearded in the throat, 

 the teeth obtuse or acute. Corolla funnelform-campanulate to cylindric, equalling or longer 

 than the calyx, the limb nearly equally 4-cleft, or one of the lobes broader and emarginate. 

 Perfect stamens 2, anterior, the posterior pair rudimentary, or altogether wanting; anther- 

 sacs parallel. Ovary deeply 4-parted ; style slender, 2-cleft at the summit. Nutlets truncate 

 at the summit, narrowed below, trigonous, smooth, their margins thickened. [Greek, wolf-foot.] 



About 15 species of the north temperate zone. Besides the following, two or three others occur 

 in western North America. Type species : Lycopus europaeus L. 



Calyx-teeth 4 or 5, ovate, shorter than the nutlets. 



Base of the stem not tuberous ; leaves ovate or ovate-lanceolate. 

 Base of the stem tuberous-thickened ; leaves oblong to lanceolate. 

 Calyx-teeth mostly 5, lanceolate or subulate, longer than the nutlets. 

 Bracts minute ; corolla twice as long as the calyx. 

 Leaves sessile. 



Leaves narrowed into a manifest petiole. 



Bracts lanceolate or subulate ; corolla not twice as long as the calyx. 

 Leaves pinnatifid or deeply incised. 

 Leaves merely coarsely dentate or serrate (lower rarely incised). 



Leaves oblong or oblong-lanceolate, serrate. 6. L. asper. 



Leaves ovate, coarsely dentate. 7. L. europaeus. 



i. Lycopus virginicus L. Bugle- weed. Bugle- 

 wort. Fig. 3673. 



Lycopus virginicus L. Sp. PI. 21. 1753. 



Perennial by long filiform leafy stolons, glabrous or 

 puberulent; stem slender, erect or ascending, simple or 

 branched, 6'-2 high. Leaves ovate or ovate-lanceolate, 

 acuminate at the apex, sharply dentate, narrowed or 

 cuneate at the base, petioled, or the upper sessile, dark 

 green or purple, 1^-3' long, i'-ii' wide; bracts short, 

 oblong; calyx-teeth 4, or sometimes 5, ovate or ovate- 

 lanceolate, obtuse or subacute; corolla about i" broad, 

 narrow, nearly twice as long as the calyx, or longer ; 

 rudimentary posterior stamens minute; nutlets longer 

 than or about equalling the calyx. 



In wet soil, New Hampshire to Florida, Alabama, Mis- 

 souri and Nebraska. Northern Asia. Sometimes called 

 wood betony. July-Sept. 



1. L. virginicus. 



2. L. uniflorus. 



3. L. sessilifolius. 



4. L. rubellus. 



5. L. americanus. 



