50 CYPERACEAE 



14. Eleochaiis rostellata Torr. Beaked Spike-rush. (Man. p. 171; 

 I. F./. 595.) lu wet places, Vt. to B. C, Fla., Mex. and Q.sX.— Pennsyl- 

 vania : Crawford. 



7. FIMBRISTYLIS Vahl. 

 Style-branches or stigmas 2 : achenes lenticular. 



Spikelets peduncled and forming umbels, or solitary and sessile. 



I. F. laxa. 

 Spikelets several, sessile, forming a terminal head. 2. F. Vahlii. 



Style-branches or stigmas 3 : achenes 3-angled. 3. F. autumnalis. 



1. Fimbristylis laxa Vahl. Weak FimbrisTyi^is. (Man. p. 174 ; I. 

 F. f. 606.) In moist soil, Pa. to Fla., west to 111., Mo. and Tex. Also in 

 tropical Am. — Pennsylvania : Chester ; Phii,adei<phia ; Lancaster. 



2. Fimbristylis Vahlii (Lam.) Link. Vahl'S F1MBRISTYI.IS. (Man. 

 p. 174 ; I. F. /. 60/.) lu moist soil. Mo. to Tex., east to N. C. and Fla. 

 Also about the eastern cities. — Pennsylz'atiia : CHESTER ; PHII.ADEL- 

 PHiA ; Lancaster. 



3. Fimbristylis autmnnalis ( L. ) R. & S. Seender Fimbrist\t:,is. 

 (Man. p. 174 ; I. F. /. 608.) In moist soil, Me. to Mich., Fla. and La. 

 Also in tropical Am. — Pennsylvania : Chester ; Northampton ; Lan- 

 caster ; York ; Dauphin ; Erie ; Montour ; Huntingdon ; Erie. 



8. STENOPHYLLUS Raf. 



1. Stenophyllus capiUaris (L. ) Britton. Hair-like .^tenophyi,i.us. 

 (Man. p. 173 ; I. F. /. 6oj.) In dry or moist soil, throughout N. A., ex- 

 cept the extreme north. Also in tropical Am. — Pennsylvania : North- 

 ampton ; Delaware ; Lancaster ; Huntingdon ; Erie ; Mont- 

 gomery ; Philadelphi.\ ; York ; Chester. 



9. CLADIUM P. Br. 

 1. Cladium mariscoldes (Muhl.) Torr. Twig-rush. (Man. p. 1S6 ; 

 I. F. y. 66/.) In marshes, N. S. to Minn., Fla. and Iowa. — Pennsyl- 

 vania : Carbon ; Lancaster ; Erie ; Clinton. 



10. RYNCHOSPORA Vahl. 



Perianth-bristles downwardly barbed. 



Scales white or whitish : perianth-bristles 9-15. i. J?, alba. 

 Scales brown : perianth-bristles 6. 



Leaves with filiform blades : achenes oblong. 2. R. capillacea. 



Leaves with narrowly linear flat blades: achenes obovate. 3. R. glomerata. 



Perianth-bristles upwardly barbed. 4. R. cymosa. 



1. Rynchospora alba (L. ) Vahl. White Beaked-rush. (Man. p. 

 185 ; I. F. /. 651.) In bous, Newf. to Alaska, Fla., Ky., Minn, and Ore. 

 Also in Eu. and Asia. — Pennsylvania: Monroe; Lancaster; Craw- 

 ford ; Erie ; Montgomery ; Philadelphia ; Lackawann.\ ; Pike ; 

 Delaware. 



2. Rynchospora capillacea Torr. Capillary Beaked-rush. (Man. 

 p. 185 ; I. F./. 652.^ In bogs, Va. to Minn., N. J. and Pa. — Pennsyl- 

 vania : Lancaster ; Erie. 



