550 HITCHCOCK: MEXICAN GRASS 



Ixophorus unisetus is cultivated in Costa Rica as a forage grass 

 under the name of Honduras grass (Zacate de Honduras). 



The synonymy of the species and a Hst of the specimens in 

 the National Herbarium follow: 



Ixophorus unisetus (Presl) Schlecht. 



Urochloa uniseta Presl, Rel. Haenk. i: 319. 1830. 



Panicum unisetum, Trin. Mem. Acad. St. Petersb. VI. Sci, 

 Nat. i: 217. 1834. 



Ixophorus unisetus Schlecht., Linnaea 31: 421. 1862. 



Ixophorus schiedeanus Schlecht. Linnaea 31: 421. 1862. 



Setaria schiedeana Fourn., Hemsl. Biol. Centr. Amer. Bot. 

 3: 505. 1885. 



Setaria uniseta Fourn., Hemsl. Biol. Centr. Amer. Bot. 3: 506. 

 1885. 



Setaria cirrhosa Fourn., Mex. PI. 2: 43. 1886. 



Panicum palmeriYasey, Contr. U. S. Nat. Herb, i: 281. 1893 



Panicum pringlei Vasey, Contr. U. S. Nat. Herb, i: 363 



1895- 

 Panicum schiedeanum Trin., Beal, Grasses N. Amer. 2: 119 



1886. 



Ixophorus pringlei Scribn., U. S. Dept. Agr. Div. Agrost 

 Bull. 4: 6. pi. 2. 1897. 



Ixophorus pringlei minor Scribn. U. S. Dept. Agr. Div. Agrost 

 Bull. 4: 7. 1897. 



Panicum cirrhosum Scribn. & Merr., U. S. Dept. Agr. Div 

 Agrost. Bull. 21: 40. 1900. 



DISTRIBUTION 



San Luis Potosi: Rascon, Pur pus 5425. 



Tepic: Acaponeta, Rose 14253. 



Jalisco: Tequila, Palmer 372 in 1886. Valley of the Rio 

 Grande de Santiago, Pringle 2423. Near Guadalajara, Pringle 

 2047. 



Morelos: Trimenta, Orcutt 4407. Valley of Cuantla, Pringle 

 8493. Cuernavaca, Hitchcock 6821, 6841. 



Colima: Cohma, Palmer 141 in 1897, 1256 in 1891. Alzada, 

 Hitchcock 7070, 7091. Jala, Hitchcock 7007. 



Guerrero: Iguala, Hitchcock 6695. Balsas, Hitchcock 6805. 



