572 
MONOECIA TRIANDRIA. 
ribus dioicis; spicis sub- 
ramosis, glomeratis, 
geminatis, petiolo lon- 
gioribus. E. 
flowers dioecious; spikes 
branching, clustered, by 
pairs, longer than the 
petioles. 
Sp. pi. 4. p. 353, Pursh, 1 . p. 113. Nutt. 2. p. 208. 
U. Filiformis? Walt. p. 230. 
Stem three to four feet high, obtusely four-angled, pubescent. Leaves op- 
posite, ovate lanceolate, sometimes obtuse, sometimes slightly acuminate, 
acutely serrate, strongly nerved and veined, sprinkled with hairs on the upper 
surface, very pubescent underneath along the veins. Petioles one to two 
inches long, pubescent and ciliate. Floivers in compact approximate clus- 
ters, on branching spikes. Spikes two from each axil, in all of my speci- 
mens longer than the petioles, sometimes nearly as long as the leaf. Calyx 
somewhat hairy. 
In specimens of this plant which I received from Dr. Muhlenberg him- 
self, and in others sent me from our upper country, the leaves are never cor- 
date, and the spikes uniformly longer than the petiole. 
Grows in wet soils in the upper districts of Carolina and Georgia. 
Flowers July-— August. 
6. Capitata. 
Leaves alternate, cor- 
date ovate, acuminate, 
serrate, three-nerved, 
twice as long as the pe- 
tiole; clusters spiked, 
spikes solitary, shorter 
than the leaves, leafy 
at the summit; stem na- 
ked. 
Sp. pi. 4. p. 363. Walt. p. 230. Pursh, 1. p. 113. Nutt. 2. p. 208. 
Stem four to five feet high, obtusely four-angled, somewhat scabrous, fur- 
rowed. Leaves oblong, oval or lanceolate,* coarsely toothed, scabrous, 
three-nerved; sometimes slightly cordate, large; those of the stem generally 
opposite, of the branches alternate; petioles long, unequal, when the leaves 
are opposite. Flowers in sessile clusters, lateral and axillary. Sterile and 
fertile florets intermingled. Calyx a little hairy. Seed compressed ovate. 
Grows in shaded wet soils. 
Flowers July — August. 
U. foliis alternis, cor- 
dato ovatis, acumina- 
tis, serratis, trinervibus, 
petiolo duplo longiori- 
bus, glomerulis spicatis 
spicis solitariis folio 
brevioribus, superne fo- 
liosis, caule nudo. 
