HITCHCOCK—MEXICAN GRASSES. 993 
HERBARIUM SPECIMENS—Continued. 
Duranao: Durango, crevices of rocks on hillsides, Palmer 881 in 1896; in bunches 
in crevices near top of hill, Palmer 882 in 1896; mountains, Palmer 528 in 
1896; crevices of rocks on hillside, Palmer 725 in 1896; dry ground, Hitch- 
cock 7572. ; 
CoaHuILA: Saltillo, sandy ground near river, Hitchcock 5624; Palmer 393 in 
1898. Sierra de Parras, Purpus 5007. ‘ 
ZacaTEcas: Hacienda de Cedros, plains, Lloyd 204 in 1908. Zacatecas, in gulch 
in dry sterile hills, Hitchcock 7509; along dry river bed, Hitchcock 7533. 
Plateado, Rose 2786. , 
AGUASCALIENTES: Aguascalientes, sterile rocky hill, Hitchcock 7459, Rose & 
Painter 7730. 
San Luis Porosf: C4rdenas, railway cut, Hitchcock 5726. San Luis Potosf, 
Parry & Palmer 930 in 1878. Sierra de Guascama, Purpus 5429. 
Jauisco: Guadalajara, Palmer 457 and 482 in 1886; on roof of hotel, Hitchcock: 
7260. 
QUERETARO: Querétaro, rocky hill among cacti, Hitchcock 5848; Rose & Rose 
11188. Between San Juan del Rfo and Cadereyta, Rose, Painter & Rose 
9680. 
Hipateo: Ixmiquilpan, Rose, Painter & Rose 8992. El Salto, railroad banks, 
Pringle 11744. Pachuca, rocky slopes, Purpus 1627; Orcutt 3915. 
Micuoacdn: Morelia, Arséne in 1909. 
México: Valley of Mexico, Bourgeau 218. Federal District, Pringle 9563; on top 
of stone wall, Hitchcock 5871; Ross 53; Rose, Painter & Rose 8494. Without 
locality, Schumann 1745. 
Puesia: Tehuacdén, old field, Hitchcock 6038; among cacti, Hitchcock 6078. San 
Luis Tultitlanapa, Purpus 3590. 
Oaxaca: Oaxaca, cleft in rocky cliff, Hitchcock 6159. 
11. Muhlenbergia nebulosa Scribn.; Beal, Grasses N. Amer. 2: 247. 1896. 
Type locality, ‘‘Mexico, wet places, hills near Guadalajara,’’ the type specimen 
collected by Pringle (no. 2366). 
RanGE: Pacific slope of Mexico. 
HERBARIUM SPECIMENS. 
Trpic: Tepic, moist spot in canyon, Palmer 1933 in 1892. 
Jauisco: Guadalajara, wet places, hills, Pringle 2366. Rio Blanco, wet soil, 
Pringle 11753. 
Cotma: Alzada, Oreutt 4629. 
12. Muhlenbergia implicata (H. B. K.) Kunth, Rév. Gram. 1: 63. 1829. 
Podosaemum implicatum H. B. K. Nov. Gen. & Sp. 1: 127. 1816. 
Type locality, ‘‘in humidis, uliginosis Andium Mexicanorum prope lacum Cuiseo 
et Puerto de Andaracuas. ” 
Rance: Northern Mexico in the mountains to South America. 
HERBARIUM SPECIMENS FROM MEXICO: 
CurauAHuA: Potrero Mountains, rocky banks of streams, Pringle 818. 
Duranao: Durango, rocky hill, Iron Mountain, Hitchcock 7639; mountain side, 
Palmer 769 in 1896; rich moist shaded ground among agaves, Palmer 718 in 
1896; shady side of arroyo, Palmer 830 in 1896. 
Jauisco: Zapotlén, hills, Hitchcock 7179, 7251. Guadalajara, prairie near San 
Pedro, Hitchcock 7289. 
Micnoac&kn: Morelia, Arséne in 1909. 
México: Toluca, Holway 3138. Salto de Agua, Purpus 1622. Federal District, 
lava fields, Pringle 9057; Orcutt 4307; Rose & Painter 6820; Bourgeau 1557. 
Pues: Cholula, Deam in 1899. Puebla, Nicolas in 1910. 
VERACRUZ: Consoquitla, Liebmann 640. Orizaba, Botteri 679; Miiller 2102. 
Oaxaca: Monte Alb4n, thin soil of limestone ledges, Pringle 4950. 
