148 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Arizona: San Bernardino Ranch, Mearns 744. San Pedro River, Mearns 1120. Car- 

 rizo Mountains, Standley 7494. Winslow, Griffiths 5035. • Fort Verde, Mac- 

 Dougal 614. Opposite Black Point (California), Jepson in 1912. Prescott, 

 Hitchcock 13180. Benson, Griffiths 1993. Papago Reservation, Griffiths 1651. 

 Fairbank, Griffiths 1970. Tucson, Griffiths 1616. 



California: lone, Braunton 1241. Lake Tahoe, Hitchcock in 1901. Threerivere, 

 Jepson 4717. Rockwood, Parish 8340. Fort Yuma, Parish 8233. Imperial 

 Valley, Parish 8085; Wales 13. Kern County, Hilgard in 1895. Merced, Hitch- 

 cock 3212. Death Valley, Coville & Funston 242. 



Sonora: Colorado River, Palmer 950 and 951 in 1889. 



Chihuahua: Casas Grandes, Toivnsend & Barber 353. 



Durango: Torre6n, Hitchcock 7725. Durango, Hitchcock 7565, 7566; Palmer 252 in 

 1896. 



Coahuila: Saltillo, Palmer 380 in 1898; Hitchcock 5600, 5607, 5612. 



Zacatecas: Zacatecas, Hitchcock 7526. 



Aguascalientes: Aguascalientes, Hitchcock 7442, 7486. 



San Luis Potosi: San Luis Potosi, Hitchcock 5655. 



Jalisco: Orosco, Hitchcock 7385. Guadalajara, Hitchcock 7310, 7314; Palmer 430 in 

 1886. Colotlan, Rose 3606. 



Guanajuato: Acambaro, Hitchcock 6935. Irapuato, Hitchcock 7387, 7398, 7399, 

 7421. Guanajuato, Duges in 1897. 



Queretaro: Queretaro, Hitchcock 5820, 5835, 5850, 5851, 5867; Arsene 10264; Basile 

 36, 54. 



Michoacan: Morelia, Arsene in 1910. 



Mexico: Mexico, Bourgeau23Q, 680; Pringle 9585; Orcutt 4105; Hitchcock 5894. 



Puebla: Cholula, Nicolds in 1910. Tehuacan, Hitchcock 6061. 



Veracruz: Orizaba, Hitchcock 6326; Muller 2049. Pital, Liebmann 377. 



Oaxaca: Oaxaca, Hitchcock 6175, 6181. 



Mexico (Republic of): Without locality, Liebmann 386. 



Guatemala: Guatemala City, Hitchcock 9098. 



Costa Rica: San Jose, Jimenez 926; Cooper 5992; Tonduz 3016 ; Pittier 229. Cartago, 

 Cooper 144; Tonduz 10754. San Marcos, Tonduz 7530. Alajuelita, Tonduz 8825. 



Colombia: Palmira, Pittier 817. 

 #- Bolivia: Coripati, £angr 2108. 



Argentina: General Roca, Fischer 274. 



Echinochloa crusgalli crus-pavonis (H. B. K.) Hijchc. 



Oplismenus crus pavonis H. B. K. Nov. Gen. & Sp. 1 : 108. 1814). "Crescit in apricis 

 calidissimis Provinciae Cumanensis prope Bordones." The type, in the Paris 

 Herbarium, has awns mostly 5 to 10 mm. long. The specific name is written as two 

 words. 



Panicum sabulicolum Nees, Agrost. Bras. 258. 1829. "Habitat in arenosis Parae 

 (Sieber). Vidi in Herb. Willd.— In Monte Video, et in confinibus Regni Paraguayani 

 legit Sellow. (Herb. Reg. Berol.)." The Sieber specimen (the name in a slightly 

 different form) has been examined in the Willdenow Herbarium. The Sellow speci- 

 men has been examined at the Berlin Herbarium. This is the same form as Oplismenus 

 crus-pavonis. 



Panicum crus-pavonis Nees, Agrost. Bras. 259. 1829. Based on Oplismenus crus- 

 pavonis H. B. K. Nees describes a variety a with short awns as in Oplismenus crus- 

 pavonis, and a variety /3, with long awns. The type of the latter, from the Rio Negro, 

 has awns 15 to 20 mm. long. 



Echinochloa composita Presl; Nees, Agrost. Bras. 259. 1829, as synonym of Panicum 

 crus-pavonis. It was not published by Presl. The specimen, in the German Uni- 

 versity at Prague, was collected at Acapulco by Haenke. It is about the same form 



