Carex. CYPERACE^. 399 



G2. Carex Pennsylvanica, Lam. Pennsylvanian Sedge. 



Sterile spike solitary, mostly pedunculate ; fertile spikes 1 - 3, ovoid, few-flowered, nearly 

 sessile, approximate ; perigynium ovoid-globose, densely pubescent, with a short beak which 

 is slightly 2-toothcd at the apex, about the length of the ovate mucronate or acuminate scale. 

 — Lam. enc. 3. /;. 388; Gray, Gram, cj- Cyp. ■part 2. no. 162 ; Torr. Gyp. p. 410. C. 

 marginata, Muhl. in Willd. sp. 4. j). 261, and gram. p. 237 ; Schk. Car. t. Lll. /. 143 ; 

 Schwein. ^ Torr. Car. I. c. p. 322 ; Dew. Car. l.c.W.p. 163 ; Kunth, enum. 2. /;. 443. 



var. Muhlcnhergii : sterile spike sessile ; perigynium more ovoid, the beak longer and 

 more distinctly 2-tootlied at the summit. — Gray, I. c. no. 162 ; Torr. Cyp. I. c. C. varia, 

 Muhl. in Willd. sp. 4. p. 259 ; Schk. I. c. t. Uuu./. 167 ; Muhl. gram. p. 236 ; Ell. sk. 2. 

 p. 541 ; Schivein. <J- Torr. I. c. p. 329 ; Dew. I. c. p. 162 ; Kunth, I. c. 



Culms 6-15 inches high, triquetrous, rough above, slender, growing in tufts. Leaves 

 about a line and a half wide, somewhat glaucous. Sterile spike 6-8 lines long, usually on a 

 short peduncle ; the scales oblong, obtuse or somewhat acute, brownish red margined with 

 white. Fertile spikes commonly 2, 4 - 8-flowered ; the lowest one sometimes pedunculate. 

 Scale often a little longer than the perigynium, brownish red with a pale margin. Perigynium 

 roughly pubescent, about a line and a half long, very tbin and membranaceous, somewhat 

 triangular from the three prominent ribs ; the beak often a little oblique. Achenium globose- 

 triangular, obtuse. Style articulated. 



Dry woods and hillsides : common. Fl. April. Fr. May. Very near C. pilulifera of 

 Europe. I have never been able to find sufficient characters for distinguishing C. Penn- 

 sylvanica from C. varia. To the latter, Dr. Boott ( who retains both species ) joins C. 

 Emmonsii ^ collecta of Dewey, and C. Nova-Anglice of Schweinitz. 



63. Carex Nov^-Angli^, Schwein. New-England Sedge. 



Sterile spike on a short peduncle ; fertile spikes 2-3, nearly sessile, ovoid, few-flowered, 

 approximate ; perigynium oblong-ovoid, somewhat triquetrous, attenuate at the base, beaked, 

 minutely pubescent, rather longer than the ovate mucronate scale ; culm filiform, nearly 

 decumbent. — Schwein. anal. tab. I. c. ; Dew. Car. I. c. 9. p. 64. t. 2. /. 7 ; Schwein. ^ 

 Torr. Car. I. c. p. 328 ; Kunth, enum. 2. p. 408. C. collecta, Dew. I. c. 11. p. 314. t. 7. 

 /. 44? 



Culm 6-8 inches high, very slender, leafy below. Leaves about a line wide, smoothish. 

 Staminate spike about one third of an inch long ; the scales reddish brown, oblong, rather 

 obtuse. Fertile spikes mostly 2 ; the lower one on a short peduncle, 4 - 5-flowered. Fertile 

 scale about two thirds the length of the perigynium, brownish purple, with a green keel. 

 Perigynium rather more than a line long, attenuate at the base into a short stipe, somewhat 

 triangular, green ; the beak a httle obhque, and slightly 2-tootlied at the apex. Achenium 

 closely invested with the very thin perigynium, ovoid, obtusely triangular. Style articulated 

 at the base. 



Mount Marcy, Essex county, on the Adirondack river {Dr. Knieskern). Fl. June July. 



