7G TRANSACTIONS OF THE [fEB. 22, 



Hall and Harbour's No. 583 is mixed, for Mr. Clarke inforn)S me 

 that that number in Herb. De Candolle is S. csespitosus. 



4. Scirpiis csespitosus, L. 



Scirpns ccespitosus, L., Sp. PL, 48 (1753). 

 Eleocharis ccespitosa, Nees, Liniisea, ix, 294 (1835). 



Greenland and Labrador to Alaska and British Columbia; south 

 to the mountains of New England, and on the higher southern 

 Alleg'henies ; western New York, Illinois, Michigan, Minnesota, 

 and in the Rocky Mts. south to Colorado (Hall and Harbour, 583, 

 in Herb. D. C, fide C. B. Clarke). A form with greatly elongated 

 stems from Cape Breton Island (Macoun). Also in Europe and 

 Asia. 



f f Spikes 1 or 2, subtended by an involucral bract or leaf. 



5. Scirpus Clintoni, A. Gray. 



Scii-pus Clintoni, A. Gray, Am. .Jaurn. Sci. (II), xxxviii, 290 (1864). 

 S. jilanifolhis, var. brevifoUus, Torr., Ann. Lye, iii, 442 (1836), not S. brevifolius, 

 Roxb. 



St. Patrick, New Brunswick (Vroom); western New York 

 (Clinton); Lansing:, Mich. (L. H. Bailey); Hubbardston, Mich. 

 (C. F. Wheeler). Also Broad River, N. C. (Rugel, in Herb. Kew, 

 fide Clarke). 



6. Scirpus planifoliiis, Mubl. 



Scirpns planifolius, Muhl., Gram., 32 (1817). 

 Isolepis planifolla, Spreng., Neue Ent., iii, 10 (1822). 

 Eleocharis planifolia, Nees, Linnaea, ix, 294(1835). 



Dry woodlands, Rhode Island to Delaware, west to western New 

 York and Pennsylvania. Also in western Missouri (B. F. Bush, 

 fide S. Watson). 



7. Scirpns subteriuinalis, Torr. 



Scirpus suhterminalis, Torr., Fl. N. U. S., i, 47 (1824). 



In ponds and streams. New Brunswick to the Canadian Rocky 

 Mountains, Washington, and Oregon, south to New Jersey, Penn- 

 sylvania, and Michigan. 



8. subLerminalis, var. terrestris, Paine, Cat. PI. Oneida Co., 96 

 (1865), is theemersed state of the species. Litchfield, N. Y. (Paine);. 

 Hidden Lake, Herkimer Co., N. Y. (Clinton). 



8. Scirpus cernuus, Vahl. 



Scirpus cernuus, Vabl, Enum., ii, 285 (1806). 



Scirpus riparius, Spreng., Syst., i, 208 (1825). 



Scirpus pijgmcEus, A. Gray, Proc. Amer. Acad., vii, 392 (1868). 



Isolepis leptocaulis, Torr., Bot. Whipple Exp., 97 (1857). 



Isolepis pi/gmcea, Kuntb, Enum., ii, 191 (1837). 



Isolepis pi/gmcea, var. Californicu, Torr., Bot. Wilkes Exp., 476 (1874). 



In wet places, British Columbia, Oregon, and California. Also 

 in South America and in Europe and Australia. 



