The Sedges of Nebraska 1 1 



S. campestris Britton. Perennial. In and around shallow 

 water. Alliance, Box Butte Co.; Lincoln (Uni.) ; Alliance; 

 Kennedy, on Lone Tree Lake; Lincoln (Bates). 

 a. S. campestris longi-spicatus nov. var. We have in the 

 \]m. Seminar collection one sheet collected by P. J. O'Gara 

 at Laurel, Cedar Co., with simple spikes of a soft silvery 

 gray, heavily streaked with red, spikelets five, 2.5-3.8 cm. 

 long; achenes as in campestris. The plant was cut below 

 the two upper leaves, but what we have is normal. I 

 would not like to name a new species from our incom- 

 plete plant, but this is so striking a likeness to campestris 

 that I venture this varietal name tentatively. I intend to 

 visit the O'Gara homestead this season and collect, if 

 possible. 

 S. fluviatilis (Torr.) Gray. Perennial. In ponds and 

 marshes. Kennedy ; Merriman ; St. Paul ; Columbus ; Grand 

 Island; Scotia (Bates) ; Newark (Dr. Hapeman) ; Lincoln; 

 St. James, Cedar Co. ; Whitman, Grant Co. ; Newark (Uni.). 

 S. atrovirens Muhl. Perennial. In low ground, swales but 

 not marshes. Weeping Water, Cass Co. ; Nemaha, Nemaha 

 Co.; Beatrice, Gage Co. (Bates) ; Minden (Dr. Hapeman) ; 

 Lincoln ; Minden ; Talmadge, Otoe Co. ; 2 sheets by J. P. 

 Sprecher, probably near Columbus (Uni.). 

 S. pallidus (Britton) Fernald. Similar. A fairly good spe- 

 cies. Broken Bow ; St. James, Cedar Co. ; Hitchcock Co. ; 

 Thedford; Dismal River, Hooker Co.; Crawford, Dawes 

 Co. ; Nebraska City, Otoe Co. ; Kiowa Valley, Scotts Bluff 

 Co.; Wahoo, Saunders Co. (Uni.) ; Valentine; Loup City, 

 Sherman Co.; St. Paul, Howard Co. (Bates). 



It has been interesting to see how this species and variety 

 (so-called up to the latest manual) are distributed in Ne- 

 braska. vS". atrovirens alone is represented in the southeastern 

 corner of the state, crops out in the middle third of Kear- 

 ney Co. — two distinct collections — and gives way to pallidus 

 in the northeastern part of Cedar Co., and in all the western 

 two thirds except Kearney Co. I have seen it in many 



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