150 
Spring Flora of Oklahoma 
Leaves linear-cuneate to spatulate, 2-8-toothed; peduncles 
little exceeding leaves. 1. L. cuneifolia. 
Leaves sharply serrate; peduncles much longer than 
leaves. 2. L. nodiflora. 
1. Lippia cuneifolia (Torr.) Steud. Wedge-leaved Fog-fruit. 
Minutely puberulent, with forked hairs or glabrous. Branches pro¬ 
cumbent, somewhat zigzag, with short, erect branchlets at the nodes. 
Leaves linear-cuneate, sessile with 2-8 sharp teeth above the middle. 
Head globose to cylindric. Bracts cuneate. Fruit oblong. 
On plains. May-August. Frequent in central part of state. 
2. Lippia nodiflora (L.) Michx. Spatulate-leaved Fog-fruit. 
Densely puberulent, with short, appressed hairs, creeping. Leaves 
spatulate, oblanceolate or obovate, sharply serrate above the middle. 
Heads at length cylindric. Corolla purple to white. 
In wet or moist soil. May-September. Frequent. 
FAMILY 77. LABIATiE. Mint Family. 
Mostly herbs, with square stems and opposite, more or 
less aromatic, leaves without stipules. Flowers general¬ 
ly in cyme-like, axillary clusters, which are often grouped 
into terminal spikes or racemes. Calyx tubular, usually 
2-lipped, persistent. Corolla usually 2-lipped. Stamens 
4 (2 long and 2 short) or only 2. Ovary free, with 4 deep 
lobes, which surround the base of the style. Fruit con¬ 
sisting of 4 nutlets, ripening inside the base of the calyx. 
I. Ovary 4-lobed, the style not basal; nutlets laterally 
attached. I. Teucrium. 
II. Ovary 4-parted, the style basal; nutlets basally at¬ 
tached. 
A. Calyx with a protuberance on the upper side. 
II. Scutellaria. 
B. Calyx not gibbous on the upper side. 
Stamens included. III. Marrubium. 
