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PLANTS OF RHODE ISLAND. 47 
ORDER 100. XYRIDACEA. 
XYRIS, L. YeELLow-ErYep Grass. 
flexuosa, Willd. 
Caroliniana, Walt. 
ORDER 101. ERIOCAULONACE 2. 
EHERIOCAULON, L. Prreworr. 
septangulare, With. 
ORDER 102. CYPHRACEHA. 
CYPERUS, L. Gatineate. 
flavescens, L. 
diandrus, Torr. 
Nuttallii, Torr. 
inflexus, Muhl. 
dentatus, Torr. 
phymatodes, Muhl. 
strigosus, L. 
Michauxianus, Schultze. Block Island, Olney ; Quidnes- 
sett, Bennett. 
Grayii, Torr. 
filiculmis, Vahl. 
DULICHIUM, Richard. 
spathaceum, Pers. 
FUIRENA, Rottboell. Umpretua Grass. 
squarrosa, Michx. Benedict Pond. 
var. pumila. Worden’s Pond, Bennett. 
HEMICARPHA, Nees. 
subsquarrosa, Nees. Long Pond, Providence. 
ELEOCHARIS, R.Br. Sprke-Rusu. 
Robbinsii, Oakes. 
equisetoides, Torr. Cumberland, Olney ; Cranston. 
tuberculosa, R. Br. 
obtusa, Schultze. 
olivacea, Torr. Providence, E. Greenwich. 
palustris, R. Br. 
rostellata, Torr. Quidnessett, Field’s Point, 
tenuis, Schultze. 
melanocarpa, Torr. 
acicularis, R. Br. 
pygmea, Torr. Seekonk River, &c. 
SCIRPUS, L. 
planifolius, Muhl. 
