20 



On moist muddy rocks along the Guadalupe at Kerrville, altitude 

 1600 feet. Growing in round tufts, usually prostrate, but some of the 

 larger plants ascending. Quite variable in size, the stems ranging from 

 two to six or seven inches in length. 



June 13 (1851). 



DICHROMENA Michx. Fl. Bor. Am. i : 37 (1803). 



Dichromena colorata (L.) A. S. Hitchcock, 4th Kept. Mo. Bot. 

 Gard. 141 (1893). 



Schoemis coloratus L. Sp. PL 43 (1753). 

 Scirpus cephalotes Walt. Fl. Car. 71 (1788). 

 Dichromena leucocephala Michx. Fl. Bor. Am. i : 37 (1803). 

 Dichromena cephalotes Britton, Bull. Torr. Club. 15 : 100 (1888). 

 In stiff moist ground on the banks of the Guadalupe at Kerrville, 

 growing in patches, altitude 1600 feet. 



June 19 (1886). 

 Dichromena nivea Boeckl. 



Dichromena Reverchoni S. H. Wright. 



Growing in thick tufts in wet places on the left bank of the Gaudalupe, 

 at Kerrville, altitude 1600 feet. Abundant at this one station, but not 

 observed elsewhere. Lack of time has prevented the obtaining of the 

 proper citations for this species. 

 May 23 (1778). 



FUIRENA Rottb. Descr. et Ic. 70, /. 19, f. 3 (1773). 



Fuirena simplex Vahl. Enum. 2 : 384 (1806). 



Fuirena squarrosa Torr. Ann. Lye. N. Y. 2: 252 (1828), not 



Michx. 

 Fuirena squarrosa var. aristatula Torr. Ann. Lye. N. Y. 3 : 291 



(1836). 



In wet gravel on the left bank of the Guadalupe, at Kerrville. Plants 

 tall and stout, growing in clumps; altitude 1600 feet. 

 July 2 (1937). 



CLADIUM P. Br. Civ. and Nat. Hist. Jam. 114 (1756). 



Cladium effusum Torr. Ann. Lye. N. Y. 3: 374 (1836). 



In wet ground on both banks of the Guadalupe at Kerrville, but not 

 abundant; altitude 1600 feet. 



June 20 (1892). 



