1892.] NEAV YORK ACADEMY OF SCIENCES. 81 



*** Spikes very numerous in terminal, large, comijound umbels. 



29. Scirpiis sylvaticus, L. 



Scirptts sylvaticus, L. Sp. PL, 51 (1753). 



Scirpits brunneus, Torr., Ann. Lye, iii, 326 (1836), not Muhl. ? 



In swamps. Massachusetts (Cooley) ; northern New Jersey 

 (Austin, Apgar, Best, Britton); New York; Pennsylvania: Toby- 

 hanna, Pocono Mts., and banks of Octorara Creek, Lancaster Co. 

 (Porter); Monroe, Bucks Co. (J. A. Ruth); Gap, and near Smith- 

 ville, Lancaster Co. (Small). Delaware: Centreville (Commons). 

 West Virginia: White Sulphur Springs (Britton). North Caro- 

 lina: near Hickory, Catawba Co. (Heller and Small, 274). 



30. Scirpiis inicrocarpus, Presl. 



Scirpus microcarpus, Presl. , Rel. Hsenk., i, 195 (1830). 

 Scirpus lenticularis, Torr., Ann. Lye. N. Y., iii, 328 (1836). 

 *S. sylvaticus, var. digynus, BcBckL, Linnsea, xxxvi, 727 (1870). 



In swamps. Nova Scotia and Quebec, through British America 

 to Alaska; south to New Hampshire: near base of Mt. Washington 

 (Morong) ; New York: Buffalo (Clinton); banks of the Mohawk, 

 near Schenectady (Wibbe); Lyon's Falls, Black River (Haberer). 

 Minnesota; Nevada: Reno (Tracy, 230, F.) ; and rather common 

 in California and Oregon. 



31. Scirpus atrovirens, Muhl. 



Scirpus atrovirens, Muhl., Gram., 43 (1817). 



S. sylvaticus, var. atrovirens, Bceckl., Linnsea, xxxvi, 495 (1870). 



In swamps. Nova Scotia to Manitoba; south to Georgia and 

 Louisiana. 



Var. pallidllS, Britton. 

 S. atrovirens, -vnr. pallidus, Britton, Trans. N. Y. Acad. Sci., ix, 13 (1889). 



Nebraska: Little Blue River, S. Platte (H. Engelmann); Hitch- 

 cock .Co., and Broken Bone, Custer Co. (Webber). Minnesota: 

 Hennepin Co. (Sandberg). Kansas: Mitchell Co. (M. A. Carle- 

 ton). Indian Territory (Paln)er, 358). Colorado: Canon City 

 (Brandegee). Oregon: Multomah Co. (T. Howell); Medicine 

 Hat, Saskatchewan River (J. M. Macoun). 



32. Scirpus divaricatus. Ell. 



Scirpus divaricatus. Ell., Bot. S. C, i, 88, t. 2, f. 4 (1816). 

 Scirptis lineaius, Muhl., Gram., 45 (1817), fide Torrey, not Michx. 

 Scirpus amhigaus, Sclmlt., Mant., ii, 85 (1824). 



In swamps. Florida and South Carolina to Louisiana; Ken- 

 tucky (Short in Herb. Kew, fide Clarke). 



