696 



LABI AT A E (mTNT FAMILY) 



-»• -1- Floii^ers 5-10 mm. long ; leaves at most 2 cm. long. 



11. S. par vula Mich X. Herbaceous; subterranean stolons monilifof iK-tuher- 

 iferous; pubescent throughout with spreading often viscid hairs, dwarf (0.8-^^ 

 dm. high), branched and spreading ; all but the lower leaves sessile and entire 

 or sparingly toothed, the lowest round-ovate, the others ovate or lance-ovate, 



slightly heart-shaped ; flowers axillary. (Including var.wo^ 

 lis Gray; S. campestris Britton.) — Sandy banks, Vt. and 

 w. Que. to Mich., s. to Tenn. and Tex. Apr.-July. 



Var. amblgua (Nutt.) Fernald. Minutely puberulent or 

 glabrate. (*S'. parvula Britton, not Michx.) — Me. to Wise, 

 Ky., and Tex. 



§ 2. Nutlets conspicuously loinged., each raised on a slender 



base. 



888. S. nervosa. 

 An upper node x i/^, 

 Nutlet X 5. 



12. S. nerv6sa Pursh. Smooth, simple or branched, 

 slender, 1.5-5 dm. high ; lower leaves roundish, the middle 

 ovate, toothed, somewhat heart-shaped, 2-4.5 cm. long, the 

 floral ovate-lanceolate, entire ; nerve-like veins prominent beneath ; corolla bluish, 

 1 cm. long, the lower lip exceeding the concave upper one. — Moist thickets and 

 rich woods, s. Ont. and N. Y. to Mo. and N. C. Fig. 888. 



6. MARRUBIUM [Tourn.] L. Horehound 



Calyx-teeth more or less spiny-pointed and spreading at maturity. Upper 

 lip of the corolla erect, notched, the lower spreading, 3-cleft, its middle lobe 

 broadest. Stamens 4. — Whitish-woolly bitter-aromatic perennials, branched 

 at the base, with rugose and crenate or cut leaves, 



and many-flowered axillary whorls. (A name used -'-^11"^- \^| 



by Pliny, from the Hebrew marrob, a l3itter juice.) -^s^^^y Ym 



1. M. vulgAre L. (Common H.) Stems ascend- .^^^r:^^^^^^^ i^ : ij 

 ing ; leaves round-ovate, petioled, crenate-toothed ; 

 whorls capitate ; calyx with 10 recurved teeth, the 

 alternate ones shorter ; corolla small, white. — Waste 

 places, Me. to Ont., westw. and southw. June-Aug. 889. M. vulgare. 



(Nat. from Eu.) Fig. 889. Node x 1/3. Fruiting calyx X 2. 



7. AGASTACHE Clayt. Giant Hyssop 



Calyx tubular-bell-shaped, 15-nerved, oblique, 5-toothed, the upper teeth 

 rather longer than the others. Upper lip of corolla nearly erect, 2-lobed, the 

 lower 3-cleft, with the middle lobe crenate. Stamens 4, exserted ; the upper 



pair declined, the lower and shorter pair ascending-, so 

 that the pairs cross ; anther-cells nearly parallel. — • 

 Perennial tall herbs, with petioled serrate leaves, and 

 small flowers crowded in interrupted terminal spikes 

 in summer. (From d7aj', mrich, and o-rdxi^s, an ear 

 of corn, in reference to the numerous spikes.) Lo- 

 PHANTurs Benth.. in part. 



1. A. nepetoides (L.) Ktze. Stem stout, 0.7-1.5 m. 

 high, sharply 4-angled, smooth or nearly so ; leaves 

 ovate, somewhat pointed, coarsely crenate-toothed, 

 5-12 cm. long ; spikes 8-12 cm. long, crowded with 

 the ovate pointed bracts ; calyx-teeth ovate, rather 

 obtuse, little shorter than the pale greenish-yellow 

 corolla. (Lophanthus Benth.) — Borders of woods, 

 e. Mass., Vt., and w. Que. to Minn., and southw. 



2. A. scrophulariaef51ia (Willd.) Ktze. Stem (ob- 

 tusely 4-anul(Ml) and lower surface of the ovate or 

 somewhat heart-shaped acute leaves slightly pubescent ; 



890. A. scrojihulariaefolia. 

 Node and spike x y^- 

 Flower x 2. 



