LABIATAE (MINT FAMILY) 



693 



* Perennials ; leaves merely dentate or serrate ; injlorescences terminal, spiciform. 

 +- Inflorescence cylindric ; calyx densely pubescent. 



1. T. canadense L. (American G., Wood Sage.) Stems 1 m. or less high, 

 appressed-imhescent, simple or branched ; leaves lanceolate to ovate, serrate, 

 2.5-5 cm. broad, rounded or narrowed at base, short-petioled, hoary beneath, 

 green and glabrous or sparingly appressed-pubescent but scarcely papillose above ; 

 whorls about 6-flowered, crowded in long and simple wand-like racemes ; calyx 

 canescent-pannose, the 3 upper lobes very obtuse, or the middle one acutish ; 

 corolla 1.5-2 cm. long, purplish, pink, or sometimes cream-color. — Kich low 

 ground, N. E. to Neb., and southw. July-Sept. 



Var. littorale (Bicknell) Fernald. Stiff, usually simple, 2-7 dm. high ; leaves 

 lanceolate to lance-ovate, 1.5-3 cm. broad, mostly tapering at base, thick and 

 somewhat rugose, the upper surface papillose beneath the dense appressed pubes- 

 cence ; flowers slightly smaller, ( T. littorale Bicknell.) — Near the coast. Me. 

 to Fla. and Tex., and northw. in the Miss, basin to Okla. 



2. T. occidentale Gray. Stem villous, 3-9 dm. high ; leaves lance- to ovate- 

 oblong, white-villous beneath ; calyx and bracts villous with viscid hairs and 

 with shorter capitate or stipitate glands; the upper calyx-lobes acute or the 

 middle one acuminate; corolla 8-12 mm. long. — Alluvial soil, Me. to B. C, s. 

 to Pa., O., Mo., N. Mex., and Cal. 



Var. boreale (Bicknell) Fernald. Stem more closely pubescent ; calyx and 

 bracts with few or no capitate glands amongst the often viscid hairs ; corolla 

 slightly longer. (T. boreale Bicknell.) — Similar situations, n. N. H. to Wash., 

 s. to w. N. Y., 111., and Tex. 



H- -t- Inflorescence secund ; calyx glabrous or glabrate. 



3. T. Scorod6nia L. (Wood Sage, Germander Sage.) Stems ascending 

 from a freely creeping rootstock, villous, 2-5 dm. high, simple or with few erect 

 branches ; leaves deltoid-lanceolate to -ovate, crenate, rugose, cordate or trun- 

 cate at base, short-petioled ; flowers pale yellow, paired in slender 1-sided 

 racemes ; upper tooth of the calyx large and recurved. — Said to be established 

 in Ont. and O. (Adv. from Eu.) 



* * Annual ; leaves pinnatifld ; flowers in axillary verticels. 



4. T. b6trys L. (Cut-leaf G.) Erect or decumbent, 1-3 dm. high ; leaves 

 long-petioled, rhombic-ovate, 1-2 cm. long, divided into few linear or oblong 

 segments ; flowers slender-pediceled ; corolla reddish-purple ; calyx gibbous- 

 campanulate, the lower side saccate, the subequal deltoid teeth short. — Dry 

 pastures, waste places, etc., local, w. Mass. to Ont. and O. (Nat. from Eu.) 



385. I. brachiatus 



3. ISANTHUS Michx. False Pennyroyal 



Calyx equally 5-lobed, enlarged in fruit. Corolla little longer 

 than the calyx ; the border bell-shaped, with obovate lobes. 

 Stamens slightly didynamous, incurved-ascending, scarcely ex- 

 ceeding the corolla. — A low much branched annual, clammy- 

 pubescent, with nearly entire lance-oblong 3-nerved leaves, and 

 small pale blue flowers on axillary 1-3-flowered peduncles. 

 (Name from taos, equal, and dvdos, flower, referring to the 

 almost regular corolla.) 



1. I. brachiatus (L.) BSP. Corolla 5 mm. long, little ex- 

 ceeding the calyx. (/. caeruleus Michx.) — Dry or sterile 

 ground, Vt. and w. Que. to Minn., and southw. July, Aug. 

 Fig. 885. 



4. TRICHOSTEMA L. Blue Curls 



Calyx bell-shaped, deeply 5-cleft ; the 3 upper teeth elongated and partly 

 united, the 2 lower very short. Stamens with very long curved capillary fila 



