DIDYNAMIA ANGIOSPERMIA, 
115 
3. Setacea. Pursh. 
G. caule ramosissi- 
mo ; foliis setaceis, ( 
glabris ; floribus ter- j 
minalibus axillaribus- i 
que sparsis ; pedun- i 
culis folio multo Ion- i 
gioribus. 1 
Pursh 2. p. 422. Nuttall 2. p. 4 7, 
G. erecta? Mich. 2. p. 20. 
Stem much branch- 
ed ; leaves setaceous, 
glabrous ; flowers ter- 
minal and axillary, 
scattered ; peduncles 
much longer than the 
leaves. 
Apparently annual. Stem slender, about 2 feet high, slightly angled, 
glabrous. Leaves opposite, about an inch long, with the margins a little 
rough. Peduncles opposite and alternate, and as they frequently bear 
leaves and branches, they may all be considered as real branches bearing ter- 
minal flowers, but to the eye the upper ones resemble simple peduncles 
about 2 inches long. Calyx truncate, teeth subulate, small, acute. Co- 
rolla rather small, purple, white in the tube, with 2 yellow streaks, hairy, 
the border equally 5 -cleft, segments rounded, fringed. Filaments shorter 
than the corolla, the longer pair villous. AntJikrs sagittate, very villous 
and as in all of this genus 2 cleft and mucronate at base. Style about as 
long as the stamens. Stigma thick, extending along the side of the style. 
Capsules ovate. 
Grows in damp lands along the margins of swamps and dry galls. 
Flowers August — October. 
4. F ASCICULATA. E. 
G. caule rigido, e- 
recto, superne ramo- 
so ; foliis oppositis 
ternisque, interdum 
alternis, linearibus, 
fasciculatis, scaberri- 
mis; floribus majuscu- 
lis ; pedunculis folio 
multo brevioribus. 
Stem rigid, erect, 
branching near the 
summit ; leaves oppo- 
site and by threes, 
sometimes alternate, 
linear, clustered, very 
scabrous ; flowers 
large ; peduncles 
much shorter than the 
leaves. 
