690 



LABIATAE (MINT FAMILY) 



closely bracted heads of bluish-white flowers ; bracts mucronate 

 or pointless. River-banks, N. J. to s. Ont. and Minn., s. to 

 Fla. and Tex. May-Sept. FIG. 881. 



2. L. nodiflbra (L.) Michx. Similar, but more depressed, 

 cinereous or greenish ; leaves blunter and more spatulate ; corolla 

 rose-purple or white. Mo. to N. C. and Tex. May-Sept. 

 FIG. 882. 



3. L. cuneif&lia (Torr.) Steud. Diffusely branched from a 

 882. L. nodiflora woody base, procumbent (not creeping}, minutely canescent 



x ^ throughout ; leaves rigid, cuneate-linear, incisely 2-6-toothed 



above the middle ; peduncles axillary, often shorter than the 

 leaves ; bracts rigid, broadly cuneate, abruptly acuminate ; corolla pale. 

 Plains, Neb., Kan., and westw. May-Sept. 



3. CALLICARPA L. 



Calyx 4-5-toothed. Corolla tubular-bell- 

 shaped, 4-5-lobed, nearly regular. Stamens 4, 

 nearly equal, exserted ; anthers opening at the 

 apex. Style slender, thickened upward. 

 Shrubs, with scurfy pubescence, and small 

 flowers. (Name formed of /cdXXos, beauty, and 

 Kapirbs, fruit.) 



1. C. americana L. (FRENCH MULBERRY.) 

 Leaves ovate-oblong with a tapering base, acu- 

 minate, toothed, whitish-tomentose beneath; 

 cymes many-flowered ; calyx obscurely 4-toothed ; 

 corolla bluish; fruit violet-color. Rich soil, 

 Va. to Mo. and Tex. May-July. FIG. 883. 



2. C. PURpfcREA Juss. Leaves elliptic, gla- 

 brous beneath, glandular-dotted ; corolla pink. 

 Swamp, Wilmington, Del. (Tatnall). Aug. 

 (Introd. from Asia.) 



LABlATAE (MINT FAMILY) 



Chiefly herbs, ordinarily with square stems, opposite aromatic leaves, more or 

 less 2-lipped corolla, didynamous stamens or these only two, and a deeply 4-lobed 

 ovary, which forms in fruit 4 little seed-like nutlets or achenes, surrounding the 

 base of the single style in the bottom of the persistent calyx, each filled with a 

 single erect seed. Nutlets smooth or barely roughish and fixed by their base, 

 except in the first tribe. Albumen mostly none. Embryo straight (except in 

 Scutellaria) ; radicle at the base of the fruit. Upper lip of the corolla 2-lobed 

 or sometimes entire ; the lower 3-lobed. Stamens inserted on the tube of the 

 corolla. Style 2-lobed at the apex. Flowers axillary, chiefly in cymose clusters, 

 these often aggregated in terminal spikes or racemes. Foliage mostly dotted 

 with small glands containing a volatile oil, upon which depends the warmth and 

 aroma of the plants of this large and well known family. 



I. Nutlets rugose-reticulated, attached obliquely or ventrally ; ovary merely 



4-lobed. 



Tribe I. AjtTGEAB. Stamens 4, ascending and parallel, mostly exserted from the upper side of 



the corolla. Calyx ft-10-nerved. 



* Limb of corolla Irregular, seemingly unilabiate, the upper lip being either split down or very 

 short ; stamens exserted from the cleft. 



1. Ajuga. Corolla with a very short and as if truncate upper lip. 



2. Teucrium. Corolla deeply cleft between the 2 small lobes of the upper lip. 



