8 



This species belongs to the subgenus ArthrolophlK and is related to the group contain- 

 ing Andropogoii Hchmanvi Hack., but differs from this and other related species 

 in its swollen upper sheaths, much larger sessile spikelets, stouter and longer 

 less pubescent racemes, which at first sight bear some resemblance to those of 

 A. j)rovinciali,'< Lam. 

 Andropogon saccliaroides Svvartz, Prodr. Veg. Ind. Occ. 26 (1788). 

 Saltillo, State of Coahuila, 4 E. Palmer, April. 1898; 810 E. Palmer, September, 189S; 



near Casas Grandes, State of Chihuahua, 6342 E. W. Nelson, August 30, 1899. 

 Andropog-on saccliaroides barbinodis (Lag.) Hack, in DC. Monog. Phan. 6: 494 



(1889). {A)idropo(j<jii harhliiodes Lag. Gen. et Sp. 3 (1816) . ) 

 Near Plateado, State of Zacatecas, 2758 J. N. Rose, September 3, 1897. 

 Andropogon saccliaroides leucopogon (Nees) Hack, in DC. Monog. Phan. 6:496 



(1889). {Aitdwpogonleucopogonl<ieei^,Lmn?e?i,19: 694: (1845).) 

 Durango, State of Durango, 538 E. Palmer, August, 1896. 

 Andropogon saccharoides perforatus (Trin.) Hack, in DC. Monog. Phan. 6: 496 



(1889) . {Andropogon perforatus Trin. in Fourn. Mex. PI. 2: 59 (1881 ) . ) 

 Santiago Papasquiaro, State of Durango, 469 E. Palmer, August, 1896. 

 Andropogon saccharoides torreyanus (Steud.) Hack, in DC. Monog. Phan. 6: 



495 (1889). {Andropogon torreymms Steud. Norn. ed. 2, 1: 98 (1840).) 

 Jalapa, State of Vera Cruz, 1623 C. L. Smith, 1894; Durango, State of Durango, 250 



E. Palmer, June, 1896. 

 Andropogon tener Kunth, Rev. Gram. 2: 565 (1835). 

 Sienga, State of Durango, 858 E. Palmer, November, 1896. 

 Anthephora elegans Schreb. Beschr. Gras. 2: 105. i, 44 (1772-1779). 

 Colima, State of Colima, 146 E. Palmer, 1897. 

 Hilaria cenchroides H. B. K. Nov. Gen. et Sp. PI. 1 : 117 (1815). 

 Durango, State of Durango, 379, 540 E. Palmer, July, 1896; Huejuquilla, State of 

 Jalisco, 2542 J. N. Rose, August 25, 1897, growing on the banks of water ditches 

 in alkali bottoms. 

 Hilaria mutica Benth. Journ. Linn. Soc. 19: 62 (1881). 

 Torreon, State of Coahuila, 506 Jl Palmer, October, 1898. 

 iEgopogon geminiflorus H. B. K. Nov. Gen. et Sp. PI. 4: 133, t. 4S (1820). 

 Sierra de San Felipe, State of Oaxaca, 914, 1816 C. L. Smith, 1894; near Plateado, 

 State of Zacatecas, 2791 J. N. Rose, September 4, 1897; Sierre Madre Momitains, 

 10 miles north of Pachico, State of Chihuahua, 6294 E. W. Nelson, August 25, 1899. 

 Nazia aliena (Spreng. ) Scribn. U. S. Dept. Agr. Div. Agros. Bui. 17: 28, fig. S24 



(1899) . {Lappago nlieua Spreng. Neue Entd. 3: 15 (1822). ) 

 Durango, State of Durango, 763 E. Palmer, October, 1896; Saltillo, State of Coahuila, 



396 E. Palmer, September, 1898, in cemeteries and waste places. 

 Arundinella auletica Rupr. Bui. Acad. Brux. 9: 242 (1842). 

 Jalai)a, State of Vera Cruz, 1892 C. L. Smith, 1894. 



* Paspalum candidum Kunth, Mem. Mus. Par. 2: 68 (1803) . (See Kew Index.) 

 Barranca of Texola, near Jalapa, State of Vera Cruz, altitude 1,100 m., 7884 C. G. 



Pringle, April 30, 1899. 

 Paspalum conjugatum Berg. Act. Helv. 7: 129. t. tS' (1772). 

 Colima, 16 E. Palmer, July, 1897, in low, wet bottom lands. 

 Paspalum distichum L. Amoen. Acad. 5: 391 (1760). 



Durango, State of Durango, 192 E. Palmer, June, 1896; Saltillo, State of Coahuila, 

 259, 391 E. Palmer, 1898. This grass, commonly called "sacate de grama," is 

 found about ponds and water courses, cows and liorses being very fond of it. 

 It is used medicinally as a blood purifier, a hot tea being made which is taken 

 internally. 

 Paspalum inops Vasey, Contr. U. S. Nat. Herb. 1: 281 (1893). 

 Near Plateado, State of Zacatecas, 2781 J. N. Rose, SeptemlH'i- ;'.. 1897. 



