218 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
HERBARIUM SPECIMENS FROM Mexico—Continued. 
' Veracruz: Jalapa, river banks, Pringle 7764; Smith 1892; in low ground among 
high- vegetation, Hitchcock 6682. Orizaba, Botteri 730, 731, 734. Mirador, 
Inebmann 630. Fortin, Kerber 363. Jovo, Liebmann 629. Zacuapan, moist 
open forests, Purpus 1997, 3771. Cérdoba, low ground, Hitchcock 6429. San- 
born, Orcutt 3062. 
8. Arundinella peruviana (Presl) Steud. Syn. Pl. Glum. 1: 115. 1854. 
Thysanachne peruviana Presl, Rel. Haenk. 1: 253. 1830. 
Type locality, ‘‘in montanis huanoccensibus Peruviae.”’ 
Range: Tropical America. 
HERBARIUM SPECIMENS FROM Mexico: 
Tamau.ipas: Victoria, Palmer 1714 in 1907. 
San Luis Potosi: Rascén, Palmer 652 in 1905. Tamasopo Canyon, rocky banks 
of streams, Pringle 3133. 
Jatisco: Guadalajara, Palmer 12 in 1886. Rfo Blanco, near water, Palmer 526 in 
1886. 
Veracruz: Jalapa, moist rich soil, Hitchcock 6618, Cérdoba, clay bank, Hitch- 
cock 6420; bank of cut, Hitchcock 6453; Bourgeau 1660, 2223. Panuco, Palmer 
367 in 1910. Mirador, Liebmann 621. Cabrestros,: Liebmann 634. Colipa, 
Iiebmann 625. Huitamalco and Tinzutlin, Liebmann 632. 
Oaxaca: San Pedro Nolasco, Galeotti 5873, 7863. 
26. LEPTOCORYPHIUM Nees, Agrost. Bras. 83. 1829. 
1. Leptocoryphium lanatum (H. B. K.) Nees, Agrost. Bras. 84. 1829. 
Paspalum lanatum H. B. K. Nov. Gen. & Sp. 1: 94. pl. 29. 1816. 
Type locality, ‘in regno Mexicano prope Venta del Cameron et Alto del Peregrino.”’ 
Ranae: Tropical America. 
HERBARIUM SPECIMENS FROM MExXIco: 
VeERAcRUZ: Zacuapan, Purpus 2451. Tejuco, Schiede. 
Oaxaca: San Juan Guichicovi, Nelson 2734. 
27. VALOTA Adans, Fam. Pl. 2: 495. 1763. 
KEY TO THE SPECIES. 
Blades not over 7 cm. long; spikelets densely silky-pubescent, the 
hairs not exceeding the spikelets.................2.......... 3. V. hitcheockii, 
Blades 10 to 25 cm. long; spikelets clothed with silky hairs much 
exceeding the spikelet. 
Pubescence white or nearly so, sometimes purplish............. 2. V. saccharata, 
Pubescence tawny or brown...............-2-..2200-ceeeeeeee 1. V. insularis. 
1. Valota insularis (L.) Chase, Proc. Biol. Soc. Washington 19: 188. 1906. 
Sour GRass, 
Andropogon insularis L. Syst. Nat. ed. 10. 2: 1304. 1759. 
Type locality, Jamaica. 
RanGeE: Tropics and subtropics of the western hemisphere, 
HERBARIUM SPECIMENS FROM MeExIco: 
Cutnuanua: Chihuahua, Palmer 207 in 1885. 
Srvavoa: Culiacén, Palmer 1553 in 1891. Villa Unidn, open field, Rose, Standley 
& Russell 13916. 
Duranao: Durango, in the mountains, Palmer 715 in 1896; rocky hill, Iron 
Mountain, Hitchcock 7631. 
Nuevo Leon: Monterey, edge of field, Hitchcock 5528. 
Tamau.ipas: Tampico, Palmer 151 in 1910. 
Tepric: Between Concepcién and Acaponeta, Rose 1900. 
San Luts Porosf: Las Candas, along railway, Hitchcock 5769. 
