564 
MONOECIA TRIANDRIA* 
Sp. pi. 4. p. 325. Walt. p. 229. Mich. 2. p. 1 75. Pursh, 2. p. 604. 
Nutt. 2. p. 206. 
T. Innocua, Walt. p. 229. 
Stem about twelve inches high, branching, villous. Leaves alternate, 
sessile, lanceolate, dentate, pubescent, somewhat hoary underneath. Flow- 
ers in small spikes generally terminal. Of the sterile floret, calyx four- 
parted, the segments lanceolate, pubescent; filaments two to four, short, 
thick; anthers two to four, united by pairs. Fertile floret on a short pedun- 
cle, calyx six-parted, the segments small; corolla none. Style very short. 
Stigma three-cleft. Capsule hispid, composed of three united, globular, 
two-valved cells each one-seeded. Seed spherical. 
Varies with leaves oval, or more or less lanceolate. 
Grows in dry soils. 
Flowers May — August. 
3. TJrticifolia. Mich. 
T. foliis cordatis, 
ovatis, serratis; caule 
erecto, hirsutissimo. 
Leaves cordate, o- 
vate, serrate; stem e- 
rect, very hirsute. 
Mich. 2. p. 1 76. Sp. pi. 4. p. 324. Pursh, 2. p. 604. Nutt. 2. p. 206. 
T. Mercurialis, Walt. p. 229. 
Stem twelve to eighteen inches high, erect, very hirsute. Leaves alter- 
nate, on short petioles, cordate ovate, deeply serrate, very hirsute particularly 
along the veins. Spikes opposite the leaves. Sterile florets numerous to- 
wards the summit. Fertile on short peduncles near the base of each spike. 
Capsules very hirsute. 
Grows in dry soils. Common in the middle country of Carolina and 
Georgia. 
Flowers May — August. 
ERIOCAULON. 
Flores in capitulo j 
lerminali aggregati. 
Masculi in disco. 
Calyx squama. Co- 
rolla 4-partita, laciniis 
duabus interioribus fe- 
re ad summitatem co- 
Gen. Pe. 132. 
Flowers collected in 
terminal head. 
Sterile Jlorets in the 
disk. Calyx a scale. 
Corolla 4-parted, the 
two interior segments 
cohering almost to the 
