HITCHCOCK REVISIONS OF NORTH AMERICAN GRASSES. 147 



Connecticut: Salisbury, Bissellm 1906. 

 New Jersey: Califon, Fisher in 1901. 

 Illinois: Catlin, Lansing 3507. 

 Michigan: Cass County, Darlington in 1917. 

 District of Columbia: Ball in 1900. 

 North Carolina: West Raleigh, Coit 1294. 

 Alabama: Tuskegee, Hitchcock in 1904. 

 Texas: Eastern Texas, Piper in 1910. 



Echinochloa crusgalli zelayensis (H. B. K.) Hitchc. 



Oplisrnenus zelayensis H. B. K. Nov. Gen. & Sp. 1: 108. 181,6.' "Creseit in alta 

 planitie montana regni Mexicani, prope Zelaya, Queretaro et Patzcuaro, in hunridis." 

 The specimerj from Patzcuaro is in the Paris Herbarium. This is the form, common 

 in Mexico and southwestern United States, in 

 which the panicle is erect and simple, the racemes 

 short and appressed, and the spike! ets nearly 

 awnless. 



Echinochloa zelayensis Schult. Mant. 2: 269. 

 1824. Based on Oplisrnenus zelayensis H. B. K. 



Panicum zelayense Steud. Nom. Bot. ed. 2. 

 2: 265. 1841. Based on Oplisrnenus zelayensis 

 H. B. K. 



Panicum crus-pici Willd.; Doell in Mart. Fl. 

 Bras. 2 2 : 143. 1877. A herbarium name men- 

 tioned as a form of Panicum crusgalli. There are 

 two sheets so named in the Willdenow Herbarium, 

 one with short-awned and one with long-awned 

 spikelets. The former is the specimen referred 

 to by Doell. 



Echinochloa crusgalli zelayensis Hitchc. U. S. 

 Dept. Agr. Bull. 772 : 238. 1920. 



DESCRIPTION. 



Differs from E. crusgalli mitis in having mostly 

 simple, more or less appressed racemes, the spike- 

 lets less strongly hispid, not papillose, usually 

 green. 



DISTRIBUTION. 



Fig. 33. — Echinochloa crusgalli zelayensis. 

 From Mearns 744, Mexico. 



Moist, often alkaline places, Oklahoma to Oregon, 



south through Mexico to Colombia and Argentina. 



Texas: El Paso, Chase 5888; Havard in 1882; 



Hitchcock 13329, 13330. Big Spring, Tracy 8291. Houston, Hall 836. Hock- 

 ley, Thurow in 1898. Cypress, Thurow in 1898. Bastrop, Plank 38. Richmond, 

 Plank 9. Chillicothe, Ball 973. Seguin, Plank 98. Eagle Pass, Havard 82. 



Oklahoma: Without locality, Stevens 1178. 



Oregon: Southeastern Oregon, Griffiths & Morris 893. Portland, Sheldon 10929. 



Colorado: Golden, Shear 753, 2502. 



Utah: Ogden, Hitchcock 10879. Salt Lake City, Jones in 1879. Green River, Tracy 

 in 1887. 



New Mexico: Mesilla, Hitchcock 3828. Cloudcroft, Hitchcock 13298. Carlsbad, 

 Hitchcock 13492. Grant County, Blumer 132. Pecos, Standley 5016. Ojo 

 Caliente, Wooton 2968. Las Cruces, Wooton 1072; Hitchcock in 1903. Albuquer- 

 que, Jones 4125. Farmington, Standley 7030. Cimarron Canyon, Griffiths 5552. 

 Cedar Hill, Standley 7936. Without locality, Wright 2088. 



