201 



Specimens examined : Stone Mountain, Georgia (G. McCarthy, 1888, Na- 

 tional Herbarium); San Diego Countv, California i C. K. Grout, April, 1870, 

 National Herbarium); Dunson County, Montana (John Lieberg, 1883, Herbarium 

 of the University of Minnesota I; Scottville, Texas L. C. Johnson, May 14, 1SS6, Na- 

 tional Herbarium); Ellis, Kansas (Sandberg Collection, June 17, 1888, Herbarium 

 of the University of Minnesota!, Providence, Rhode Island (J. F. Collins, July 

 8, 1892, National Herbarium); Knoxville, Tennessee (Aiton Collection, July, 

 Herbarium of the University of Minnesota); Cranston, Rhode Island (J. F. C, 

 July 7, 1892, National Herbarium); Fayetteville, Arkansas (F. L. Harvey, Her- 

 barium of the University of Minnesota); Colbert's Station, Indian Territory (C. S. 

 Sheldon, June 20, 1891, National Herbarium); Suffolk, Virginia (P. aristata, A. 

 A. Heller, June, 1893, National Herbarium); Indian Territory (Dr. Palmer, 

 1868, 251, National Herbarium); DeKalb County, Georgia (P. aristata, J. K. 

 Small, July 28, 1893, altitude 1,100 feet. National Herbarium); Converse, Mis- 

 souri (C. R. B., July, 1877, Herbarium of Purdue University); Vigo County, In- 

 diana (W. S. B., June 10, 1888, Herbarium of DePauw University i; Northwest 

 Arkansas (Harvey, 1881, National Herbarium); NicoUett's Northwestern Expe- 

 dition (P. aristata, C. A. Geyer, June 6. 1839, 275, National Herbarium); New 

 Mexico (E. A. Merus, April 20, 1892, 126, National Herbarium); Eastern Texas 

 (Elihu Hall, April 20, 1872, 399, National Herbarium); Dakota (Sandberg Col- 

 lection, Herbarium of the University of Minnesota); Texas (P. Patagonica, var. 

 spinulosa, Steele, July, 1881, National Herbarium); Oklahoma (M. A. Carleton. 

 July, 1891, 182, National Herbarium); Wilmington, North Carolina (F. V. 

 Coville, June 28, 1890, 191, National Herbarium), Suffolk, Virginia (A. A. Hel- 

 ler, June 8, 1893, Herbarium of J. M. Coulter); Camp Lowell, Arizona (C. G. 

 Pringle, April 9, 1881, Herbarium of J. M. Coulter); Hockley, Texas (W. F. 

 Thurrow, 1890, Herbarium of J. M. Coulter); Indian Territory (G. D. Butler, 

 June 14, 1877, Herbarium of J. M. Coulter); Converse, Missouri (C. R. B., July 

 14, 1877, Herbarium of J. M. Coulter). 



Var. nuda Gray. — leaves linear, margins entire, scape slender, slightly hairy ; 

 sepals obtuse, scarious, with a thick center, hairy ; bracts very short, acute. 



Specimens examined : California (M. E. Jones, March 27, 1882, National 

 Herbarium i. 



Var. lanatifolia C. and F. — 112j mm. to 137^ mm. high; leaves linear, 

 acute or obtuse, very densely woolly, five or seven veined, margins entire ; spike 

 25 mm. to 75 mm. long, cylindrical, densely flowered; scape 100 mm. to 225 

 mm. long, densely hairy ; sepals obtuse, scarious, with a thick center, woolly ; 



