GRIFFITHS—THE GRAMA GRASSES. 875 
HERBARIUM SPECIMENS, 
Arizona: Jones 540, Bowie. Lemmon 4639, 4637, and 4640, 8. E. Arizona; 3175. 
Sulphur Spring Valley. MacDougal 616, Beaver Creek. Toumey 26, Prescott, 
Griffiths 1865, Dragoon Mountains; 1948, Pearce; 1809, Rincon Mountains; 3375 
and 3371, Santa Rita Mountains. Griffiths & Thornber 26 and 222, Santa Rita 
Mountains. Hitchcock 3700, Patagonia; 3732, Benson. 
Cotorapo: Williams 2117, Colorado Springs. Rydberg 2360, Meadow Park. Hitch- 
cock 2270, Ouray. 
Froriwa: Simpson (December, 1891). Garber (November, 1878). Combs & Baker 
1105, Orange County. Baker 33, Orange County. 
Intrnors: Patterson 590, Oquawka. Wilcox 58, on Mississippi River; 41, Aurora; 
63, Manito. Gleason 1003, Havana. 
Iowa: Ball 116, Ames. 
Kansas: Smyth 78, Greensburg. Shear 147 and 702, Osborne. Norton 908, Riley 
County. Thompson 125, Syracuse. 
Missourt: Bush 389a, Atchison County. 
Nespraska: Rydberg 1552, near Mullen. Morris 434a. Williams 3008, Weeping Water. 
Clements 2738, Pishelville. Elmer 133, Crete. 
New Mexico: Wooton 419 and 1098, Organ Mountains, Vasey 101, Organ Mountains. 
Metcalfe 754, Bear Mountains. Plank 19, Socorro. Greene 403, Silver City, 
Hitchcock 3790, Organ Mountains. Standley 4977, San Miguel County. Fendler 
951 of 1847. 
South Dakota: Thornber 242, Sioux Falls. Rydberg 1135, Hot Springs. 
Texas: Riggs 66, Marshall. Lindheimer 731 (Fasc. IV). Jermy 781, Gillespie 
County. Nealley 353 and 93, Santa Ana, Letterman, San Antonio (1882). Buck- 
ley (1881). Heller 1878, Kerry ille. Reverchon 4216 and 1153, Dallas; 4, Comanche 
Peak; 4089, Wood County. ~ Bailey 740, Guadalupe Mountains; 393, Chisas Moun- 
tains. Tracy 8205, Dallas; 8221, Colorado; 8213, Weatherford; 8214, Big Springs; 
8205, Fort Worth. Ball 994 and 893, Chillicothe. 
Mexico: Conzatti 2013, State of Oaxaca. Schaffner 1018, San Luis Potosf; 158, Valley 
of Mexico. Pringle 409, Chihuahua; 11215, Tula. Wilkinson 347, Santa Eulalia 
Mountains. Brandegee 25, Cape Region, Lower California; 11, Sierra de Laguna, 
Lower California, Palmer 405, Saltillo; 807, Durango. Parry & Palmer 943, San 
Luis Potosf. Nelson 6246, Pacheco, Chihuahua. Rose 1904 and 3293, Territory 
of Tepic; 2588, State of Jalisco. 
7. Bouteloua gracilis (H. B. K.) Lag. 
Actinochioa ciliata Willd.; Beauv. Ess. Agrost. 41. 1812. (See Chondrosium cilia- 
tum.) 
Chondrosium ciliatum Willd.; Beauv. Ess. Agrost, 158. 1812. Beauvois lists this 
name in the index, basing it upon the above manuscript name of Willdenow, In 
Beauvois’s personal copy of his Essai,¢ he has written in the index in his own hand 
that this is C. gracile H. B. K. 
Chondrosium gracile H. B. K. Nov. Gen. & Sp. 1: 176. pl. 58. 1816. The cited plate 
and description, together with a specimen in Willdenow’s herbarium, ‘‘ex herb. Hum- 
boldt ex herb. Kunth” leave no doubt in my mind that this is what in this country 
we have long called B. oligostachya. Itis true that Kunth figures a single-spiked plant, 
which is the uncommon form. It is rather curious that Humboldt and Bonpland did 
not collect the more common form, but not nearly so curious as it would have been if 
they had not collected this widely distributed species at all. Kunth also figures a 
single- spiked | form 0 of B. hirsuta, though this is the less common form of that species. 
@ This copy is now in the library of the U. S. Department of Agriculture. 
