Spring Flora of Oklahoma 
151 
Stamens exserted. 
1. Corolla strongly 2-lipped; lips unlike, the upper 
concave. 
a. Anther-bearing stamens 4. 
Posterior (upper) pair of stamens longer than 
the anterior. IV. Glecoma. 
Posterior pair of stamens shorter than the 
anterior. 
Calyx distinctly 2-lipped, closed in fruit. 
V. Prunella. 
Calyx 3-10 toothed, not distinctly 2-lipped, 
open in fruit. VI. Lamium. 
b. Anther-bearing stamens 2. 
Connective of the anther very long, bearing 
a perfect sac at one end, and a rudiment¬ 
ary one, or none, at the other. 
VII. Salvia. 
Connective very short, the anther-sacs con¬ 
fluent. VIII. Monarda. 
2. Corolla 2-lipped, or regular; upper lip, when 
present, flat, or only slightly concave. 
IX. Hedeoma. 
I. TEUCRIUM (Tourn.) L. 
Herbs or shrubs, with dentate, entire, or laciniate 
leaves, and pink, white, or purplish flowers, in terminal, 
bracted spikes or heads, or verticillate in the upper axils. 
Calyx tubular-campanulate, equally or unequally 5- 
toothed. Corolla-tube short, the limb irregularly 5-lobed. 
Stamens 4, didynamous. Ovary 4-lobed. Style 2-cleft at 
the summit. Nutlets obovoid, rugose-reticulated. 
1. Teucrium laciniatum Torr. Cut-leaved Germander. Peren¬ 
nial, 12' high or less, glabrous or nearly so. Leaves 1%' long or 
less, pinnately parted into 3-7 stiff, linear, entire, toothed or lobed 
