544 LABIATAE 
gz. AJUGA, L. 
Herbs, with opposite leaves and with flowers in axillary clusters. Calyx 
egg-shaped or bell-shaped, nearly equally 5-toothed. Corolla border 2-lipped 
the upper small, the lower much larger, the middle lobe largely exceeding 
the side lobes. 
A. reptans, L. (Fig. 4, pl. 137.) Bucrtr. Stem 3 to 1} ft. high, 
nearly smooth. From the base extend runners (stolons), which reach 
out from the stem. Leaves at the base in a tuft, stem leaves rounded or 
egg-shaped, without leaf-stalks. Flowers few in the leaf-axils, corolla 
blue, much exceeding the calyx. Naturalized. Fields, Maine to southern 
New York. May-June. 
33. TEUCRIUM, L. 
Herbs, with opposite leaves and purple flowers in a narrow terminal 
spike. Calyx bell-shaped, nearly equally or somewhat unequally 5-pointed. 
Stamens 4, extending beyond the corolla, Corolla border irregularly 
5-lobed. 
1. T. canadense, L. (Fig. 8, pl. 137.) Woop Sacre. Stem 1 to 2 
ft. tall. Leaves lance-shaped on short leaf-stalks, sharply toothed, rounded 
at base, tapering toward the apex, downy. Flowers nearly an in, long, 
blue; calyx covered with short grayish hairs. Waste thickets. June- 
Sept. 
2. T. occidentale, Gray. (Fig. 9, pl. 137.) Hatry GErRMANDER. 
Calyx covered with long loose hairs, Somewhat rare. Moist soil, eastern 
Penna., and southward. July-Sept. 
(Bicknell describes several other forms found in our area as new 
species. ) 
34. TRICHOSTEMA, L. 
Herbs, annual or perennial, with branched stems and opposite leaves 
with entire borders, and with small flowers in terminal loose-spreading 
clusters. Calyx bell-shaped, with 5 very unequal teeth, the 3 upper much 
the longest and partly united, the 2 lower short. Corolla 5-lobed, the lobes 
nearly equal in length, the tube in our species extending notably beyond 
the calyx and somewhat curved. Stamens 4, the anterior pair longer, 
extending beyond the corolla. 
1. T. dichotomum, L. (Fig. 7, pl. 137.) Briur Curtis. Stem slen- 
der, much branched, 4 to 2 ft. high. Leaves oblong or lance-shaped, on 
leaf-stalks, 1 to 3 in. long, 1/3 to 1 in. wide, the whole plant somewhat 
viscid. Flowers loosely clustered, 2 or, less frequently, 3 borne together. 
Corolla blue, pink or rarely white. Dry fields, Maine to Florida. July-Oct. 
2. T. lineare, Nutt. (Vig. 6, pl. 137.) NARRow-LEAVED BLUE CURLS. 
Leaves linear, in other respects much like No. 1. Dry fields, Maine to 
Florida, July-Aug. 
35. ISANTHUS, Michx. 
Low herb, viscid, much branching, with narrow lance-shaped leaves, with 
entire margins and with small blue flowers in loose axillary clusters. 
Calyx bell-shaped, 5-lobed, the teeth equal; corolla somewhat longer than 
