FLOWERING PLANTS AND FERNS OF ARIZONA 769 



20. Leaves elliptic or oblong, narrowed at base, not at all 

 cordate (21). 

 21. Upper lip of the corolla apparently wanting, very 

 short and scarcely exserted from the calyx, deeply 

 notched: stamens exserted through the i 

 arched; calyx saccate: nutlets pitted, 1. Texjceium. 

 21. Upper lip of the corolla plane, entire, subequal to the 

 other lobes: calvx top-shaped; nutlets smo 



23. Mentha. 

 18. Anther sacs divergent or divaricate, forming an angle of 

 about 90 degrees, or placed end to end (22). 

 22. Flowers disposed in 1 or 2 hemispherical glomerules at the 

 end of each branch 23 . 

 23. Glomerules often 2; upper calyx teeth joined to the 

 middle: bracts acicular or linear: corolla lobes -A, 

 the upper 2 joined to form an erect lip. 



20. Clixopodium. 



23. Glomerules solitary and terminal: calyx teeth subequal: 



bracts ovate or ovate-lanceolate: corolla lobes 



subequal 21. Moxardella. 



22. Flowers disposed in spikes (24 . 



24. Spikes loose, the clusters pedicellate: upper lip of the 



corolla essentially plane, the tube glabrous within: 

 leaves petiolate, truncate or cordate at base: calyx 

 evidently 1 ±- or 15-veined, the veins bright green, the 



intervenous tissue transparent 9. Nepeta. 



2-4. Spikes compact, the clusters sess : upper lip of the 

 corolla cupped, the tube bearing a hairy annulus 

 within: leaves sessile or, if petiolate and truncate at 

 base, then the corolla bright red; calyx with an 

 indefinite number of veins ('usually more than 15), 

 the intervenous tissue opaque and green. 



15. Stachts. 



1. TEUCRIUM. Germander 



Perennial herbs up to 1 m. high, with serrate, oblong leaves and the 

 flowers in terminal slender spikes, or else smaller plants, annual or 

 perennial, with at least some of the leaves pinnatifid and with the 

 flowers in the axils of the reduced upper leaves: calyx saccate and 

 toothed, or deeply 5-lobed; corolla pinkish, bluish, or pallid, the 

 upper lip very short, deeply notched, the lower lip conspicuous and 

 spreading, with small lateral lobes; stamens 4, paired; nutlets 

 roughened. 



K- , to the - :« ties 



1. Leaves oblong, serrate; flowers in a terminal bracteate spike: calyx saccate, 



o-toothed 1. T. CANADENSE. 



1. Leaves laciniate or pinnatifid, less often 3-lobed or some of them entire and 

 linear: flowers in the axils of the reduced upper leaves: calyx deeply lobed, 

 the lobes lanceolate (2). 



2. Pedicels 20 mm. long: plant perennial 2. T. glandulosum. 



2. Pedicels 1 to 5 mm. long: plant annual 3. T. depressum. 



1. Teucrium canadense L., Sp. PI. 564. 1753. 



Bed of the Santa Cruz River near Tucson {Pringli in 1881, Th&rnber 

 455 . Canada to Florida, southern Arizona, and Mexico. 



2. Teucrium glandulosum Kellogg, Calif. Acad. Sci. Proc. 2: 23. 1863. 

 Chemehuevi (Mohave County), Horse Tanks in the Castle Dome 



Mountains (Yuma County), 2,000 feet (Nichol 30. Epling in 1939 . 



locally abundant in depressions and arroyos, May to July. Western 

 Arizona, southern California, and Baja California. 



An ample collection made recently on Cedros Island, the type 



