354 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Pappophorum vaginatum Buckl. Prel. Rep. Geol. Agr. Surv. Tex. App. 1. 1866. 
Pappophorum apertum Munro; Scribn. Bull. Torrey Club 9: 148. 1882. 
Type locality, ‘‘Western Texas.” 
RANGE: Southwestern United States and northern Mexico. 
HERBARIUM SPECIMENS FROM MEXICO: 
Sonora: Guaymas, Palmer 350 in 1887. 
Duranco: Tlahualilo, barren hills, Pzttier 479. 
CoaHuILa: Saltillo, garden, Palmer 256 in 1898; in cemeteries, Palmer 377 in 1898; 
dry ground, river bottom, Hitchcock 5635; dry ground in irrigation ditch, 
Hitchcock 5611. Parras, Palmer 1360 in 1880. Monclova, Palmer 1362 in 
1880. 
Nuevo Leon: Monterey, dry calcareous banks, Pringle 1973. 
3. Pappophorum laguroideum Schrad. in Schult. Mant. 2: 342. 1824. 
Type locality, ‘‘In India oecidentali.” 
Ranae: West Indies and southern Mexico to South America. 
HERBARIUM SPECIMENS FROM MEXICO: 
Oaxaca: Quiotepec ad Rfo Grande, Liebmann 670. Tomellin Canyon, Pringle 
4814; Tomellin, rocky bank near river, Hitchcock 6197. 
100. COTTEA Kunth, Rév. Gram. 1: 84. 1829. 
1. Cottea pappophoroides Kunth, Rév. Gram. 1: 84, 1829. 
Type locality, ‘‘ Peruvia.”’ 
RanGeE: Southwestern United States to South America. 
HERBARIUM SPECIMENS FROM MEXICO: 
Sonora: Guaymas, Palmer 339 in 1887. 
Curmuanva: Chihuahua, rocky hills, Pringle 420. Southwestern Chihuahua, 
Palmer 162 in 1885. 
Duraneo: Torredn, rocky hill, Hitchcock 7543. 
San Luis Potosi: Sierra de Guascama, Purpus 5419. 
Jauisco: Bolafios, Rose 2914. 
Oaxaca: Tomellin, rocky cliff, Hitchcock 6201. 
101. SCLEROPOGON Phil. Anal. Univ. Chile 36: 205. 1870. 
1. Scleropogon brevifolius Phil. Anal. Univ. Chile 36: 206. 1870. 
Type locality, ‘‘Mendoza.”’ 
RANGE: Southwestern United States to Argentina and Chile. 
HERBARIUM SPECIMENS FROM MExXIco: 
Curmuanua: Plains, Pringle 484. Santa Eulalia Plains, Wilkinson in 1885. 
Colonia Diaz, Nelson 6440. Candelaria, Stearns 254. 
CoanuiLa: Parras, Purpus 5005. Saltillo, Palmer 280 in 1898. Chojo Grande, 
Palmer 340 in 1904. 
Zacatecas: Hacienda de Cedros, Lloyd 169. 
San Luts Potosi: San Luis Potosi, Parry & Palmer 925 and 949 in 1878; Schaffner 
135, 162. 
Hinauco: Telles, Orcutt 4148. 
PuEBLA: San Marcos, railway embankment, Hitchcock 6508, Chalchicomula, 
dry ground along railway, forming close sod, Hitchcock 6270. 
102. MONANTHOCHLOE Engelm. Trans. Acad. St. Louis 1: 436. 1859. 
1. Monanthochloé littoralis Engelm. Trans. Acad. St. Louis. 1: 436. 1859. 
Type locality, Texas. 
RanGE: Coasts of tropical and subtropical seas of the Western Hemisphere. 
