PLANTS OF RHODE ISLAND. 47 



Order 100. XYRIDACE^. 

 X Y R I S , L. Yellow-Eyed Grass. 



1. flexuosa, Willd. 



2. Caroliniana, Walt. 



Order 101. ERIOCAULONACE^. 

 ERIOCAULON, L. Pipewort. 

 septangulare, With. 



Order 102. CYPERACE^. 

 CYPERUS, L. Galingale. 



1. flavescens, L. 



2. diandrus, Ton-. 



3. Nuttallii, Torr. 



4. inflexus, Muhi. 



5. dentatus, Ton-. 



6. phymatodes, Mulil. 



7. strigosus, L. 



8. Michauxianus, Scliultze. Block Island, Olney ; Quidnes- 



sett. Bennett. 



9. Grayii, Ton-. 



10. filiculmis, Yahl. 



DULICHIUM, Richard, 

 spathaceum, Pers. 



F U I R E N A , PiOttboell. Umbrella Grass. 

 squarrosa, Michx. Benedict Pond, 



var. pumila. Worden's Pond, Bennett. 



HEMICARPHA, Nees. 

 subsquarrosa, Xees. Long Pond, Providence. 



ELEOCHARIS, R. Br. Spike-Rush. 



1. Robbinsii, Cakes. 



2. equisetoides, Torr. Cumberland, Olney ; Cranston. 



3. tuberciilosa, R. Br. 



4. obtusa, Schultze. 



5. olivacea, Torr. Providence, E. Greenwich. 



6. palustris, R. Br. 



7. rostellata, Torr. Quidnessett, Field's Point. 



8. tenuis, Schultze. 



9. melanocarpa, Torr. 

 10. acicularis, R. Br. 



11- pygmaea, Torr. Seekonk River, &c. 



SCIRPUS, L. 

 1. planifolius, Muhl. 



