MINT FAMILY 615 



Anther-bearing stamens 4, sometimes only 2 in Pogogyne. 



Flowers solitary or few in the axils of the leaves. 



Corolla with a hairy ring near the base within. _ 



17. Lepechtnia. 



Corolla naked within. 



Corolla-tube curved upward. 19. Melissa. 



Corolla-tube straight. 20. Satureja. 



Flowers capitate, spicate or capitate-verticillate in the axils of leaves or 



bracts. 



Calyx naked in the throat; bracts foliaceous, not colored. 



Annuals; verticils spicate; bracts conspicuously ciliate. 



21. Pogogyne. 



Perennial herbs; verticils distant in the axils of reduced leaves, 

 these not ciliate. 24. Pycnanthemiim. 



Calyx bearded in the throat; bracts often colored, not ciliate. 



22. Origanum. 

 Corolla regular or nearly so, the lobes nearly or quite equal. 



Flowers in dense terminal heads, stamens 4; plants of dry habitats. 



23. Monardella. 



Flowers in axillary whorls; plants of wet habitats. 



Stamens 2. 25. Lycopus. 



Stamens 4. 26. Mentha. 



Stamens declined and enveloped by the lower lip of the corolla. 27. Hyptts. 



1. TEUCRIUM [Tourn.] L. Sp. PI. 562. 1753. 



Annual or perennial herbs or shrubs with entire, toothed or laciniate leaves. Flowers 

 small, pink, white or purple, in terminal bracteate spikes or heads, or verticillate in the 

 upper axils. Calyx campanulate, 10-nerved, with 5 equal or unequal lobes. Corolla-tube 

 short, limb 2-Hpped, upper lip short, 2-!obed, the lower with 2 short lateral lobes and a 

 larger declined middle one. Stamens 4, exserted between the lobes of the upper lip, and 

 curved downward, the anterior pair longer ; anther-sacs divergent, confluent at base. Style 

 2-cleft. Nutlets 4, ovoid, rugose-reticulate. [Named for the Trojan king, Teucer.] 



A genus of about 100 species, inhabiting temperate and tropical regions of both the eastern and western 

 hemispheres. Type species, teucriutn fruticens L. 



Herbs. 



Perennial herb, villous; leaves lanceolate or narrowly ovate, sharply serrate. 1. T. occtdentale. 



Annual glabrate, with several stems from the base; leaves obovate or spatulate, crenately incised. 



^ 2. T. depressum. 



Shrub with elongated seasonal branches, glandular-punctate; leaves narrow, entire or with a basal pair of 

 slender lobes or teeth, rarely pectinate. 3. 1 . glandulosum. 



1. Teucrium occidentale A. Gray. Hairy Germander. Fig. 4352. 



Teucriutn occidentale A. Gray, Syn. Fl. N. Amer. 2': 349. 1878. 



Perennial with a rootstock; stems simple or branched, 3-8 dm. high, villous-hirsute with 

 soft glandular hairs. Leaves narrowly ovate to oblong-lanceolate, 4-9 cm. long, acute, rounded 

 to short-cuneate at base, strigose-pubescent above, short-villous beneath ; petioles densely vil- 

 lous, 5-10 mm. long; spikes dense or sometimes interrupted below, becoming 8-15 cm. long in 

 fruit, densely villous and usually glandular; lower bracts lanceolate, the upper lanceolate-sub- 

 ulate'; calyx 5-6 mm. long, viscid-villous ; lower teeth acuminate, the upper shorter, acute or 

 acutish ; corolla about 10 mm. long, purple. 



Moist soil, mainly Arid Transition Zone; British Columbia, Washington and Oregon, east of the Cascades, 

 also Nevada, east to Maine, Pennsylvania, and New Mexico. Type locality: Nebraska. June-Aug. 



2. Teucrium depressum Small. Dwarf or Alkali Germander. Fig. 4353. 



Teucrium depressum Small, Bull. N.Y. Bot. Card. 1: 288. 1899. 

 Teucrium eubcnse var. densum Jepson, Man. Fl. PI. Calif. 861. 1925. 



Usually much-branched from an annual taproot, the branches mostly spreading or decumbent, 

 1-4 dm long. Lower leaves 10-25 mm. long, obovate-cuneate, crenately incised, petioled ; upper 

 leaves palmately 3-cleft into linear divisions, or 3-5-lobed, lower parts glabrate ; inflorescence 

 more or less soft-villous ; pedicels 2-3 mm. long ; calyx-teeth_ lanceolate-subulate, about 4 mm. 

 long ; corolla pale blue, 7-8 mm. long ; nutlets prominently reticulate. 



Low sandy ground. Lower Sonoran Zone; Colorado Desert (Hayfields, Palo Verde Valley, Colorado River 

 bottoms), California east to Arizona and southwestern Texas. Type locality: southern Texas. March-May. 



3. Teucrium glandulosum Kell. Glandular Germander. Fig. 4354. 



Teucrium glandulosum Kell. Proc. Calif. Acad. 2: 23. 1860. 



Low shrub 1 m. high, the branches of the season often 4-5 dm. long, glabrous or puberulent at 

 the nodes. Leaves 2-3.5 cm. long, linear or linear-lanceolate, narrowed above to an obtuse or 

 rounded apex, and below to a sessile base or to a short winged petiole, entire, rarely pectinately 

 toothed or with a pair of linear lobes near the base, glandular-punctate ; flowers solitary in the 

 axils of all but the lower leaves ; pedicels slender, 1-3 cm. long ; calyx 7-8 mm. long, glandular- 

 dotted, tube prominently 10-nerved, teeth subequal, lanceolate, longer than the tube, pungently 



