162 Common Canadian wil±) plants. 



10. Pliysoste'gla. Calyx not 2-lippcd, 5-tootlicd or lobed, thin and 

 membranaceous, inflated-bell-shaped in fruit. Anther-cells par- 

 allel. Flowers large and showy, rose-colour variegated with pur- 

 ple, opposite, in tei'minal leafless spikes. 



17. Krnncl'la. Calyx 2-lipped, flat on the upper side, closed in fruit; 

 tlie upper Up S-tonthed, the lower 2-cleft. Filaments 2-toothed at 

 the apex, the lower tooth bearing the anther. Flowers violet, in a 

 close termii\al spike or head, which is very leafy-bracted. 



1-8. Sciitclla'rifi. CaZj/a; 2-Zy)j3e(Z, short, closed in fruit, thclips rounded 

 and entire, ilie upper ivitU a projection on tJie back. Corolla bine 

 or violet, the tube elongated and somewhat curved. Anthers of 

 the lower .otamensl-celled, of the uppci-,2-cellcd. Flowers solitary 

 in the axils of the upper leaves, or in axillary or terminal 1-sided 

 racemes. 



19. IHarrn'biiiiii. Calyx 10-toothed, the teeth spiny and reourved.ifler 



flowering. Stamens 4, included in tlw corolla tube, inutish 

 woolly jilants with small white flowers in hoa<I-like whorls. 



20. Cialcop'sis. Calyx 5-toothed, the teeth spiny. The middle lobe of 



the lower lip of the corolla inversely heart-shaped, the palate with 

 2 teetU. at til e sinuses. Stamens 4, tlmantltersopeving cross-ivise. 

 Flowers purplish, in axillary whorls. 



21. Stacli'ys. Calyx S-toothed, beset with stiff bail's, the teeth spiny, 



diverging in fruit. Btamens i, the' outer i^air tiiriied down a/te^ 

 discharging their pollen. Flowers purple, crowded in whorls, 

 these at length foi'ming an interrupted spike. 



22. Lcoian'rns. Calyx .^i-toothed, Ihe teeth spiny, and spreading when 



old. The middle lobe of the lower lip of the corolla narrowly 

 oblong-obovate, entire. Flowers pale purple, in close whorls in 

 the axils of the cut-lobed leaves. Nutlets sharply S-angled. , 



23. I.a'niinni. Calyx tubular bell-shaped, 5-nerved, with 5 nearly equal 



av^-pointed teeth. Corolla dilated at the throat ; upper lip arched 

 and narrowed at the base, the middle lobe of the lower lip notched 

 at the apex and narrowed at the base. Herbs with purple flowers 

 in few or several whorls or heads. 



24. Ballo'ta. Calyx nearly funnel-form, lO-ribbed, wllh a spreading 



5-toothed border. Wliorls of purplish flowers dense. Anthers 

 exserted. Plant erect, hairy (but green). 



1. TEV'CRIiJM, L. Germander. 

 1. T. Canadense, L. (American Germander. Wood 

 Sage.) Stem 1-3 feet high, dowiiy. Leaves ovate-lanceolate, 

 serrate, short-petioled, hoary beneath. ITIowers in a long 

 spike. — Low grounds. 



