MONOECIA TRIANDR1A. 
523 
the interior equal, membranaceous; corolla two valved, equal, the valves 
lanceolate, membranaceous; filaments three; anthers oblong incumbent; 
nectaries two, carnose, triangular, concave and somewhat two-pointed at the 
summit. Fertile flowers nestling in recesses in the rachis; common glume 
two-valved, two.flowered, (the exterior generally abortive;) exterior glume 
lanceolate, glabrous, cartilaginous, closing very nearly the cavity, perforated 
near the base? the interior membranaceous; corolla of both florets two- 
valved, lanceolate, membranaceous, the exterior larger, bearing only the 
rudiment of a germ and style, the interior with the rudiments of three sta- 
mens; germ ovate, glabrous. Style thick. Stigmas very long, feathered. 
Seed ovate, glabrous. 
This species has been to me very rare. I have only seen it growing on a 
sandy knowl on the margin of the Ogeechee River. 
Flowers May — July. 
2. Monostachyon. Willd. 
T. spica solitaria, 
terminal^ superne mas- 
cula, interne foeminea. 
Spike solitary, ter- 
minal, florets sterile 
near the summit, fer- 
tile at the base. 
Sp. pi. 4. p. 202. Pursh, 2. p. 88. Nutt. 1. p. 85. 
Root perennial. Stem three to five feet high, sometimes branching, 
somewhat compressed, glabrous. Leaves one to three feet long, one inch 
wide, finely serrulate, somewhat scabrous, contracted and a little hairy at 
base, the sheath shorter than the internode. Spike terminal, solitary, the 
base obliquely articulated, bearing the fertile florets distichously; the summit 
somewhat triquetrous, bearing the sterile florets on two angles, the back flex- 
uous. The structure of the flower very similar to that of the preceding- 
species. 
Grows abundantly on some of the sea-islands (Paris Island) along the 
margin of the salt-water. 
Flowers August — October. 
3. Cylindricum. Mich. 
T. spica solitaria, 
cylindrica, hermaphro- 
dita; spiculis contiguis 
in articulos secedenti- 
bus. 
Mich. 2. p. 60. Sp. pi. 4. p. 202. 
Spike solitary, cylin- 
drical, hermaphrodite; 
separating into short 
joints. 
Pursh, 1. p. 88. 
