68 FLOBA OF PHILADELPHIA. 



8. Eynchospora fusca (L.) E. & S. M. p. 185. Low grounds. Summer. 



Burlington — Quaker Bridge (C). Camden — Spring Garden (C). 

 Gloucester— Mickleton (C). Atlantic— Egg Harbor (He.). Ocean— 

 Manchester (C), Forked Eiver (He.). 



9. Eynchospora gracilenta A. Gray. M. p. 186. Pine-barren swamps. 



Summer. 

 Burlington— Quaker Bridge (C), Atsion (He.). Gloucester— Mickle- 

 ton (C). Atlantic — Egg Harbor (Li.). 

 New Castle— Kiamensi. 



10. Eynchospora cymosa Ell. M. p. 186. Low grounds. Summer. 



Bucks— Bristol (P.), Tullytown (Sa.)." Delaware— Spring House, Tin- 

 icum, A. H. Smith (Pu.) (B. Sin.). Lancaster— (P.). 



Camden— Griffith 's Swamp (C), Lindenwold (VP.). Gloucester— Near 

 Mickleton (He.). Monmouth— Woodbury Pond, Squan (C). Mercer— 

 Princeton, Hightstown (C). Hunterdon— Byram (0.). 



New Castle — Common. 



11. Eynchospora Torrbyana A. Gray. M. p. 186. Wet pine barrens. 



Summer. 

 Burlington— Quaker Bridge, Atsion (C). Atlantic — Pleasant Mills, 

 Main Eoad Station (C), Egg Harbor (He.) (Li.) (Wn.). 



10. CLADITJM P. Br. Twig-Eush. 

 1. Claditjm mariscoides (Muhl.) Torr. M. p. 186. Marshes. Summer. 

 Lancaster — (P.). 

 New Jersey — Prequent. 



11. SCLEEIA Berg. Nut-Etjsh. 



Spikelets in terminal, or terminal and lateral clusters; achene supported on 

 a hypogynium. 

 Achene smooth. 1. S. triglomerata. 



Achene reticulated or irregularly rugose. 



Culms erect or ascending; achene reticulated; leaves 2-3 mm. wide. 



i 2. S. reticularis. 



Culms spreading; achene irregularly rugose; leaves 4-8 mm. wide. 



3. S. Torreyana. 

 Achene papillose. 4. S. pauciflora. 



Spikelets interruptedly glomerate-spicate ; no hypogynium. 



5. S. verticillata. 



1. Scleria triglomerata Michx. M. p. 186. Meadows and thickets. Sum- 



mer. 

 Bucks— Noekamixon (Pr.). Delaware — Near Spring House, Tinicum, 

 Dr. Geo. Smith (Fu.). Chester— (P;). Lancaster^ (P.). 

 New Jersey— Frequent. 

 New Castle — Frequent. 



2. Scleria reticularis Michx. M. p. 188. Moist meadows. Summer. 



Delaware— Near Spring House, Tinicum, Dr. Geo. Smith (Fu.). Lan- 

 caster — Pleasant Grove (P.). 

 Atlantic— Main Eoad Station (C). Ocean— Manchester (C). 

 New Castle — Newark, not common. 



