338 PRACTICAL BOTANY. 



9. Fuirena, Rottbcell. Umbrella-Grass. Species : 



Fidrena squarrosa, Mx. 



10. Psilocari/a, Torr. Bald-Rush. Species: 



Psilocarya sclrpoides, Torr. 



11. Dlc7irome)ia^V\AQ\i. Species: 



DXchromena leucocephala^ Mx. 



12. Ceratoschcenus, Nees. Horned Rush. Species 2. 



13. Rhynehospora^ Vahl. Beak-Rush. Species 10. 



14. Cladium^ P. Browne. Twig-Rush. Species : 



Cladiuni inariscoides^ Torr. 



15. Scleria^ L. Nut-Rush. Species 5. 

 IG. Carex, Sedge. Species 132. 



ORDER CXXXIV. 



GEAMINE^, OR GRASSES. 



Tribe I. Poacece, R. Br. 



1. Xeer5205,Solander. False Rice. White Grass. Species^. 



2. Zizaiiia^ Gron. Water- or Indian-Rice. Species 2. 

 • 3. Alopecurus^ L. Fox-tail Grass. Species 3. 



4. Phleum^ L! Cat's-tail Grass. Species 2. 



5. Fe7/a, Adans, Beauv. Rush-Grass. Species 3. 



6. Spo7'olobtiSj R. Br. Drop-seed Grass. Species 5. 



7. Agrostis^ L. Bent-Grass. Sj^ecies 6. 



8. Poli/2)ogo7ij Desf. Beard-Grass. Species : 



Poly2^ogon Monsp>eliensis, Desf. 



9. Cinna^ L. Wood Reed-Grass. Species : 



Cinna arundinacea^ L. F«r. pendula. Gray. 



10. Muhlenhergia^ Schreb. Species 7. 



11. Prachgelgtrto7i, ^eavLV. Species: 



B. ciristatum^ Beauv. {Muhlenhergia aristata^ Pers.) 



12. Calamagrostis^ Adans. Reed Bent-Grass. 



(§ Calamcigrostis, § Calamovilfa, and § Aminophila.) 



Species 7. 



13. Oryzopsis^ Mx. Mountain Rice. Species 3. 



14. /Sif^pa, L. Feather-Grass. Species 3. 



15. Aristida, Jj. Triple- awned Grass. Species 1. 



