LABI AT AE (MINT FAMILY} 7U9 



30. CUNILA L. Dittany 



Calyx ovoid- tubular, equally 5-toothed, very hairy in the throat. Upper lip 

 of corolla erect, flattish. mostly notched ; the lower spreading, 3-cleft. Stamens 

 2, erect, exserted ; sterile filaments short, minute. — Perennials, with small white 

 or purplish flowers, in corymbed cymes or clusters. (An ancient Latin name, 

 of unknown origin.) 



1. C. origanoides (L.) Britton. (Commox D.) Stems tufted, corymbosely 

 much branched, 2-4 dm. high ; leaves smooth, ovate, serrate, rounded or heart- 

 shaped at ba.se. nearly sessile, dotted, 1.5-4 cm. long: cymes peduncled ; calyx 

 striate. (C. Mariana L.) — Dry hills, N. Y. to 111., Ark., and Ga. 



31. LYCOPUS [Tourn.] L. Water Horehound 



Calyx bell-shaped, 4-5-toothed, naked in the throat. Corolla bell-shaped. 

 Stamens 2, distant, the upper pair either sterile rtidiments or wanting. Nutlets 

 with thickened margins. — Perennial mostly stoloniferous herbs, glabrous or 

 puberulent, resembling Mints, with sharply toothed or pinnatifid leaves, the 

 floral ones similar and much longer than the dense axillary whorls of small 

 mostly white flowers ; in summer. (Name compounded of \vko$^ a wolf^ and 

 TTous, foot^ from some fancied likeness in the leaves.) 



* Leaves merely serrate. 



•«- Calyx-teeth lanceolate or deltoid, barely acutish^ shorter than the mature 



nutlets. 



1. L. virginicus L. (Bugle Weed.) Stem ohtn?ie\y Rngled. us7ially puber^i- 

 lent. 2-8 dm. high, rising /ro?/i a slender (not tuberous-thickened) base ; stolons 

 filifonn, not tuberiferous ; leaves dark green (or puqjle-tinged), ovate or ovate- 

 oblong, firm, rather abruptly acuminate at both ends, coarsely toothed, 6-15 cm. 

 long, 2-5 cm. broad ; glomerules dense, often seemingly compound, in maturity 

 8-15 mm. broad; calyx ovoid-cylindric ; corolla tubular, with erect lobes; sta- 

 mens mostly included. — Rich moist soil, X. H. to Neb., and south w. (Asia.) 



2. L. uniflorus Michx. (Bugle Weed.) Similar, but usually more slender 

 and glabrate, from a tuberous base; stolons finally tuberiferous; leaves light 

 green (rarely purple-tinged), thinner, lanceolate to lance-oblong , gradually nar- 

 rowed at both ends, 2-11 cm, long, 0.5-3.5 cm. broad; glomerules smaller and 

 less dense, in maturity 4-9 mm. broad ; calyx campanulate ; corolla with flaring 

 lobes; stamens mostly exserted. {L. communis and L. membranaceus Bick- 

 uell.) — Low ground, Nfd. and Lab. to B. C, s. to mts. of Va., Mich., Minn., 

 Keb., Wyo., and Ore, (Asia.) 



-*- H- Calyx-teeth narrow^ very acute, longer than the nutlets. 



•M- Bracts minute; corolla twice as long as the calyx. 



3. L. sessilifolius Gray. Tuberiferous ; stem rather acutely 4-angled, puber- 

 ulent ; leaves closfly sessile, ovate to lanceolate, 3-10 cm. long, sparsely sharp- 

 serrate ; calyx-teeth subulate, rigid. — Low grounds, Mass. to Fla. and Miss., 

 near the coast. 



4. L. rubellus Moench. Stem rather obtusely 4-angled ; leaves petioled, 

 ovate-oblong or oblong-lanceolate, sharply serrate in the middle, attenuate-acu- 

 minate at both ends, 4-12 cm. long ; calyx-teeth triangular-subulate, not rigid- 

 pointed. — Vt. and Mass. to Minn., and southw. — Resembles no. 1, but has 

 long slender calyx-teeth. 



++ ++ Outer bracts conspicuous ; corolla hardly exceeding the calyx. 



5. L. lucidus Turcz., var. americanus Gray. Stem strict, stout, 2-9 dtn. 

 high ; leaves lanceolate and oblong-lanceolate, 5-10 cm, long, acute or acumi- 

 nate, verj^ sharply and coarsely sen-ate, sessile or nearly so ; calyx-teeth lance- 

 ovate, acuminate. (L. asper Greene.) — Mich, to Man.. Kan., and we.stw. — 

 Typical L. lucidus of Asia and n. w. Aul, with elongate subpetiolate leaves and 

 lance-subulate calyx-teeth, approaches our n. w. borders. 



