gg FLORA OF PHILADELPHIA. 



14. Scirptjs microcarpus Presl. M.. p. 179. Swamps and wet woods. 



Summer. ' 



Bitcfcs^Penn Valley (Fr.). > .,;, . 



15. Scirpus polyphyllus Vahl. M. p. 180. Swamps. Summer. 



: Butiks— Near Sellersville (Ft.). < Delaware— Valley of Darby Creek (B. 

 Sm.). Chester— (P.). Lancaster— (P.). Berks— Hamburg (Ke.). Dau- 

 phin— (P.). ■ i ■• ' 



Hunterdon— Rosemont, Lambertville (O). ; c , -, ,,., - ;> 



New Castle— Common. 



16. SciRPtrg CTPERiNUS,(Jj.)i;Kuntli., ; M. p. 180., , Swamps., Summer. 



7.. ERIOPHORUM L. Co^t'on-g^ass. , 



Achene obovoid, obtuse; spikelets umbellate. ,,;, 1. E.^polysjaehyon. 



Achene linear-oblong, acute; spikelets capitate or some of them peduncled. 



Leaves channeled 'or Srsided'; bristles 4^6 times ' sis 1'ong as the scale;' 



bright white.'- ' ' • '• 2..E. gracile.K 



Leav.es flat; bristles 3 times as long as the scale, brown (rarely white)., 

 '"."'' ; '' '"' '3. E.'Virginicum. ' 



1. .Eriophorum polystachyon L. M. p. 1821. Bogs. Summer. 



New Castle — Thompsons, not common. . 



2. Eriophorum gracile Koch. M. p. 182. Bogs. jSumme.r. ,, , 



Bucks— Quakertown, Mart. (B. C), Nockam.i^on, (Cr,.). (He.), Rock 

 Hill (Fr.). Delaware— Rhoads' Swamp, Marple (Fu.) (B- Sm.). Ches- 

 ter — (P.)., I/ehigh — Salsburg (Kr.). Northampton— (P.). 



Gloucester — Miekleton (He.). Ocean — Tuckerton (Sts.) (Te.). 



New Castle— Delaware Junction, Townsend, Commons. 



3. Eriophorum .Virginicum L. M. p. ;182. Bogs. Summer. 



8. FUIRENA Rottb. ' Umbrella-grass. 

 1. Fuirenasquarrosa Michx. M.. p. 182. . Wet meadows and marshes near 



the coast. Summer. 

 \a. Ftiirena. squarrosa hispida (Ell.) ; Chapm. M. p. 182. Sandy, wet 

 places. , Summer. 

 Camden— Ballast and Petty 's Island (C.)> Cape May~ Cape May (Cr.) 

 (Li.), Beesley's Point (He.), Anglesea (Li.)., Atl(mtic— May 's Landing 

 (C). Ocean— Toms River (C.), Forked River (He.) (Wn.). Monmouth 

 —Long Branch (Fu.),, Ocean Beach, Ocean Grove, Spring Lake (C). 



9; RYNCHOSPORA Vahl. 



Style entire or 2-toothed, persistent as a lbng-exserted beak. 



" ' ! 1. -R. comiculata. 



Style deeply 2-cleft, only its base persistent as a tubercle. 



Bristles minute or wanting. ,2.B. pallida. 



Bristles downwardly barbed or rarely smooth. 



Scales white or nearly so; bristles 9-15. 3. B. alba. 



• • Scales brown; bristles 6. 



Leaves filiform; achene oblong. 4., if. capillacea. 



Leaves narrowly linear, flat; achene obovate. 



Bristles equalling the achene ; tubercle' one-half as long or 

 less. • •" 5. b. KMeskernii. 



Bristles reaching or exceeding ■ the end of the tubercle, 

 which is as long as the achene. 



