OBI
OBI171467 David J. Keil; Melissa Luckow 15529 1981-09-13
Mexico, Oaxaca, 0.8 mi SE of turnoff to Mitla on Mex RTE 190; 2.6 mi NW of Matatlan
OBI
OBI171468 David J. Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher and Dennis Wood 16719 1983-00-00
Mexico, Baja California Sur, 2 mi N of Micro-ontas El Cardon, ca. 38 mi N of La Paz along hwy 1, 330m
OBI
OBI171446 David J. Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher and Dennis Wood 16802 1983-00-00
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin
OBI
OBI171983 David J. Keil; Melissa Luckow 15376-1 1981-09-06
Mexico, Guerrero, 0.7 mi E of Colonia Benito Juarez on Hwy 51; 12.9 mi W of turnoff to Arcelia. At giant head carved from volcanic rock., 427m
OBI
OBI171093 W. A. Weber; L. A. Charette 11842 1962-10-06
Mexico, Michoacan, MICHOACAN: Pine-oak forest, summit of grade, between Chilchota and Zacapu on MEX Hwy 15., 19.833982 -101.977872, 2134m
OBI
OBI174399 Amy stix; Mary Bueno 243 1960-02-02
Mexico, Campeche, 3 miles east of Rio San Pedro, Campeche, enroute to Carmen
OBI
OBI169874 Amy Stix; Mary Bueno 249 1960-02-06
Mexico, Oaxaca, Southwest of Xandoni, Oaxica. Near Laguna superior
OBI
Amy Stix; Mary Bueno 263 1960-01-10
Mexico, Veracruz, Near Laguna Mandinga Grande, Veracruz
OBI
OBI180095 Amy Stix; Maru Bueno 273 1960-02-04
Mexico, Veracruz, Near Coatzacoalcos, Veracruz
OBI
OBI162980 David Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher,Dennis Wood. 16818 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin.
OBI
OBI179187 J. Valdes Reyna; I. Ramirez VR-2823 2001-05-10
Mexico, Coahuila, Carr. a Torreon libre, a 2 Km. al Oeste del ejido la Rosa, 42 Km de saltillo, 1330m
OBI
OBI174138 Dr. Edward Palmer 1272 1891-00-00
Mexico, Colima
OBI
OBI171436 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16013 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin.
OBI
OBI171393 Rangel Villalobos 418 1993-10-15
Mexico, Sinaloa, Santiago de los Caballeros, 600m
OBI
OBI171391 D.J. Keil; Melissa Luckow; David Luckow 13615 1979-09-11
Mexico, Sonora, WNW of Esqueda in foothills of Sierra de los Ajos; ca 21 mi along dirt road trending west from jctn w/ highway 2.7 mi N of Esqueda, 1524m
OBI
OBI171094 D. Ugent; R. Flores C. 2104 1962-09-16
Mexico, Michoacán, 6.4 km NE of Patzcuaro on the road to Zurumutaro
OBI
OBI171455 David Keil; Melissa Luckow; David Luckow 13287 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes, 12 mi SW of Colonia Juarez, 1646m
OBI
OBI171449 David Keil; Melissa Luckow; David Luckow 13207 1979-09-02
Mexico, Chihuahua, 8 miles S of Las Palomas, 1280m
OBI
OBI171448 A.C. Sanders; M.A. Dimmitt, G. Montgomery, et al. 3566 1983-03-09
Mexico, Sonora, Caborca, N end of the Sierra El Viejo in the large canyon containing the Mina Santa Cruz, 25 mi SW of Caborca, 30.36667 -112.36667, 518m
OBI
OBI171266 M.C. Johnston; T.L. Wendt; F. Chiang; D. Riskind 11985 1973-07-31
Mexico, Coahuila, Canon de Centinela just S and SW of Pico de Centinela, Sierra del Jardin, 29.083333 -102.783333, 1600 - 2225m
OBI
OBI171462 David Keil; Melissa Luckow; David Luckow 13248 1979-09-03
Mexico, Chihuahua, 7 miles NE of Janos at top of mountain with radio tower., 1707m
OBI
OBI171960 D.J. Keil; Melissa Luckow; David Luckow 13617 1979-09-11
Mexico, Sonora, WNW of Esqueda in foothills of Sierra de los Ajos; ca 21 mi along dirt road trending west from jctn w/ highway 2.7 mi N of Esqueda, 1524m
OBI
OBI156064 Melissa Luckow; David Luckow; David Keil 13203 1979-09-02
Mexico, Chihuahua, 8 miles S of Las Palomas, 1280m
OBI
OBI171961 David Keil; Melissa Luckow 15498 1981-09-12
Mexico, Oaxaca, Mex Rte 190, 8.3 mi SE jctn with Rte 125; 14.5 mi NW of Tamazulipan, 1951m
OBI
OBI171624 D.J. Keil; Melissa Luckow; David Luckow 13576 1979-09-11
Mexico, Sonora, Fronteras, WNW of Esqueda in foothills of Sierra de los Ajos; c. 13.5 miles along dirt road trending W from jct. w/ hwy 2.7 miles north of Esqueda, 30.76389 -109.80833, 1357m
OBI
OBI162077 David Keil; Melissa Luckow, David Luckow 13310 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. Ca 3 miles E of fork in road leading to Colonia Garcia and Colonia Pacheco en route from Colonia Juarez., 2012m
OBI
OBI156063 David Keil; Melissa Luckow 15552 1981-09-14
Mexico, Oaxaca, 2.3 mi NE of Tehuantepec on Rte 190; 6.9 mi SE of Juchitan de Zaragoza, 91m
OBI
OBI156062 David Keil; Lyle A. McGill 8153 1971-08-24
Mexico, Coahuila, S end of Valle de Acatita, 3.2 mi S of Rancho los Charcos (Charco de Risa)
OBI
OBI171622 Manuel de J. Sepulveda S 1110 1999-10-05
Mexico, Nayarit, municipio de Santiago, 2 km. al Norte de Vado del Cora, 21.755556 -105.016667
OBI
OBI162017 Melissa Luckow 3046 1986-01-17
Mexico, Veracruz: Mpio Naolinco: 10.6 mi N of turnoff at 140 on road to Misantla; 2.9 mi S of Naolinco, 1530m
OBI
OBI171928 David Keil; Melissa Luckow 15493 1981-09-12
Mexico, Oaxaca, Rte 190, 3.3 mi SE jctn with Rte 125 to Tehuacan, 1646m
OBI
OBI171929 David Keil; Melissa Luckow 15457 1981-09-10
Mexico, Morelos, 0.4 mi from jctn of roads to Cuatla and Chinomeca on road to San Rafael; 11.4 mi N of Tlaltizapan, 1067m
OBI
OBI171905 David Keil; et al. 16808 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi south of Microondas Las Barcitas and east along dirt rd. c. 1.5 miles toward Rancho San Agustin
OBI
OBI171911 D.J. Keil; M. Luckow, David Luckow 13577 1979-09-11
Mexico, Sonora, Fronteras, WNW of Esqueda in foothills of Sierra de los Ajos; c. 13.5 miles along dirt road trending W from jct. w/ hwy 2.7 miles north of Esqueda, 30.76389 -109.80833, 1357m
OBI
OBI171910 David Keil; Melissa Luckow 15557 1981-09-14
Mexico, Oaxaca, 11.4 mi NE of Juchitan de Zaragoza on Mex Rte 190; 21.3 mi W of Niltepec
OBI
OBI171904 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16681 1983-01-09
Mexico, Baja California Sur, 6 mi E of San Carlos, 12m
OBI
OBI171906 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16872-1 1983-01-13
Mexico, Sonora, 7 miles E of jctn w/Mexico rte 15 along Masiaca-Alamos rd., 61m
OBI
OBI171936 David Keil; Melissa Luckow 15138 1981-08-27
Mexico, Colima, at the bridge of the Rio Armeria, 4 mi NW of jcn of Hwys 200 and 110. 2 mi SE of Armeria, 122m
OBI
OBI171922 D.J. Keil; Melissa Luckow; David Luckow 13616 1979-09-11
Mexico, Sonora, WNW of Esqueda in foothills of Sierra de los Ajos; ca 21 mi along dirt road trending west from jctn w/ highway 2.7 mi N of Esqueda, 1524m
OBI
OBI171909 David Keil; Melissa Luckow 15492b 1981-09-12
Mexico, Oaxaca, Rte 190, 3.3 mi SE jctn with Rte 125 to Tehuacan, 1646m
OBI
OBI171935 David Keil; Melissa Luckow 15325 1981-09-04
Mexico, Guerrero, 2.5 mi N of Zumpango del rio on Rte 95; 20.9 mi S of Rio Mezcala., 1036m
OBI
OBI171897 Edward Palmer 1543 1891-00-00
Mexico, Culiacan
OBI
OBI171934 David Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher, and Dennis Wood 16609 1983-01-05
Mexico, Sonora, N of Guayamas at N end of Bahia San Carlos, N of Marina del Rey., 0 - 100m
OBI
OBI171930 David Keil; Melissa Luckow 15335-1 1981-09-04
Mexico, Guerrero, 2.1 mi. N of Rio Mezcala on Rte. 95;24.5 mi. S of turnoff to Huitzuco, 610m
OBI
OBI156009 David Keil; Lyle A. McGill 8190 1971-08-24
Mexico, Durango, E of Mapimi on Mexico 30, 1.2 mi W of jctn w/Mexico 49, N of Bermuejillo
OBI
Muhlenbergia quadridentata (Kunth) Trin.
OBI171688 Stephen D. Koch; I. Sanchez V 7918 1979-04-06
Mexico, México, Mpio. de Tlalmanalco. Vertiente occidental del Volcan Ixtaccihuatl, 9 km. al Sureste de San Rafael, por una brecha maderera., 3125m
OBI
OBI171893 David Keil; Melissa Luckow 15067 1981-08-24
Mexico, Nayarit, 3 mi NW of Tierra Generosa on Hwy 15. 12 mi SE of Rio Acaponeta, 91m
OBI
OBI171892 David Keil; Melissa Luckow; David Luckow 13204 1979-09-02
Mexico, Chihuahua, 8 miles S of Las Palomas, 1280m
OBI
OBI171931 David Keil; Melissa Luckow 15333-1 1981-09-04
Mexico, Guerrero, 4.4 mi S of Rio Mezcala on Rte 95; 19 mi N of Zumpango del Rio, 579m
OBI
OBI171925 David Keil; Melissa Luckow; David Luckow 13235 1979-09-03
Mexico, Chihuahua, 7 miles NE of Janos at top of mountain with radio tower., 1707m
OBI
OBI171933 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16877 1983-01-13
Mexico, Sonora, 7 miles east of jct. w/ Mexico Rte 15 along Masiaca-Alamos rd., 26.77056 -109.19361, 61m
OBI
OBI171927 David Keil; Melissa Luckow 15251 1981-08-31
Mexico, Michoacán, Mugica, 8 miles south of Cuatro Caminos on Route 37, 2.4 miles north of El Cipirio, 18.87944 -102.12694, 274m
OBI
OBI162998 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16806 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin.
OBI
OBI171891 David Keil; Melissa Luckow; David Luckow 13267 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. 12 miles SW of Colonia Juarez on broad outwash plain at Eastern base of mountaisns., 1646m
OBI
OBI171969 M.C. Johnston; F. Chiang; T.L. Wendt; J. Henrickson 12114 1973-08-08
Mexico, Coahuila, South part of Sierra de los Organos: approach 9.5 km E. of Puerto del Gallo, then by foot south into large canyon., 26.725 -103.03333, 1200 - 2100m
OBI
OBI171953 David Keil; Melissa Luckow, David Luckow 13275 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. 12 miles SW of Colonial Juarez on broad outwash plain at eastern base of mountains., 1646m
OBI
OBI171984 David Keil; Melissow Luckow 15332-1 1981-09-04
Mexico, Guerrero, 4.4 mi S of Rio Mezcala on Rte 95; 19 mi N of Zumpango del Rio, 579m
OBI
OBI171979 D.J. Keil; et al. 13575 1979-09-11
Mexico, Sonora, Fronteras, WNW of Esqueda in foothills of Sierra de los Ajos; c. 13.5 miles along dirt road trending W from jct. w/ hwy 2.7 miles north of Esqueda, 30.76389 -109.80833, 1357m
OBI
OBI177156 David Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher, Dennis Wood 16846 1983-01-13
Mexico, Sinaloa, Ahome, along highway between Topolobambo and Los Mochis, 9 miles from junction Hwy 15 (jctn near stadium); agricultural area, 25.69944 -109.03361, 4m
OBI
OBI177142 D. Ugent; V. Ugent; R. Flores C. 1890 1962-09-11
Mexico, Michoacán, about 16 km WSW of Morelia, km 329 on Highway 15 (Morelia to Quiroga), Cerro del Aquila; north side of road; at base of adobe wall along the roadside, 2000m
OBI
OBI177009 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16721 1983-01-09
Mexico, Baja California Sur, La Paz, 2 mi N of micro-ontas El Cardon, ca. 38 mi N of La Paz along Hwy 1, 24.1436827 -110.8042021
OBI
OBI177141 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16801 1983-01-11
Mexico, Baja California Sur, SE of San Bartolo at Playa Hermosa beach near Los Barriles, 23.67111 -109.7
OBI
OBI177155 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16872-2 1983-01-13
Mexico, Sonora, 7 miles E of jctn w/ Mexico Rte 15 along Masiaca - Alamos rd., 61m
OBI
OBI177145 David Keil; Melissa Luckow 15551 1981-09-14
Mexico, Oaxaca, 2.3 mi NE of Tehuantepec on Rte 190; 6.9 mi SE of Juchitan de Zaragoza, 91m
OBI
OBI177146 David Keil; Melissa Luckow; David Luckow 13312 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. Ca. 3 miles E of fork in road leading to Colonia Garcia and Colonia Juarez., 2012m
OBI
OBI156392 David Keil; Melissa Luckow 15429-2 1981-09-09
Mexico, México, 3.6 mi NE of Tejupilco on Rte 134., 1402m
OBI
OBI156386 David Keil; Lyle A. McGill 8168 1971-08-24
Mexico, Coahuila, S end of Valle de Acatita, 10.3 mi S of Rancho los Charcos (Charco de Risa); 7.8 mi N of jctn with Coahuila Rte 2
OBI
OBI156387 David Keil; Melissa Luckow, David Luckow 13274 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. 12 miles SW of Colonial Juarez on broad outwash plain at eastern base of mountains., 1646m
OBI
OBI156227 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16805 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1. mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin
OBI
OBI177160 David Keil; Judith M. Canne 8645 1971-09-07
Mexico, Sonora, 3.5 mi SE of jctn with Sonora Rte 19, 2 mi NW of Vicam on Mexico Federal Rte 15; SE of Guaymas
OBI
OBI156394 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16827 1983-01-12
Mexico, Baja California Sur, La Paz, SW of San Bartolo along road to microwave towers, 23.69083 -109.90778, 366 - 457m
OBI
OBI177010 K.C. Nixon; C.P. Cowan 888 1977-12-16
Mexico, Baja California, Ensenada, 11 mi E of El Parador on Mexico Hwy 1 to Bahia de Los Angeles., 30.3061204 -115.809525
OBI
OBI156446 E. Yale Dawson 21590 1960-04-19
Mexico, Baja California, Bahia San Quintin
OBI
OBI156445 B.L. Burch 1969-09-21
Mexico, Sonora, Upper end of Choya Bay at estuary mouth.
OBI
OBI180543 Louis C. Wheeler 9118 1966-11-12
Mexico, Baja California, Isla Angel de la Guarda, southeast corner.
OBI
OBI180783 David Keil; Judith M. Canne 9047 1971-09-17
Mexico, Michoacán, 7.8 mi N of RR station at Zamora on raod from Ocotlan
OBI
OBI180768 David Keil; Melissa Luckow, David Luckow 13403 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas Grandes in Sierra Madre Occidental. Ca. 1 mile S of Colonia Garcia along road to Colonia Llano Largo., 2134m
OBI
OBI180780 Armando Ramos Guillen 948 1999-10-08
Mexico, Nayarit, Compostela, 2 km al Este de La Cumbre de Huicicila, 21.335 -104.993056
OBI
OBI180578 Rafael Corral Diaz 843 1983-10-14
Mexico, Durango, Mpio. de Santiago Papasquairo, 2.5 km al Oeste de La Soledad, 11 km NW Santiago Papasquiaro, 25.083333 -105.533333, 1900 - 2100m
OBI
OBI180785 Reid Moran 27591 1979-06-03
Mexico, Baja California, shore of large vernal pond 3.5 km E o f El Rodeo, 7 km N of Cabo Colonet, 31.02083 -116.29167, 80m
OBI
OBI177779 David Keil; Melissa Luckow 15635-1 1981-09-19
Mexico, Jalisco, 10.1 mi W of Magdelena on Mex Rte 15; 17.2 mi E of Jalisco-Nayarit border, 1311m
OBI
OBI177817 R.D. Worthington 8961 1982-08-21
Mexico, Durango, Canatlan, Along Hwy 45 north of Durango, 5.6 road miles north of the junction with Hwy 39, 24.5 -104.66667, 1835m
OBI
OBI180532 David Keil; Tom Daniel; Mark Mohlenbrock; Mary Butterwick; Peg Gallagher; Dennis Wood 16720 1983-01-09
Mexico, Baja California Sur, La Paz, 2 mi N of micro-ontas El Cardon, ca. 38 mi N of La Paz along Hwy 1, 24.1436827 -110.8042021, 330m
OBI
OBI177780 David Keil; Judith M. Canne 8697 1971-09-09
Mexico, Sonora, 3.1 mi E of Arroyo Cachujaqui on dirt road from Alamos to Milpillas
OBI
OBI180525 David Keil; Tom Daniel, Mark Mohlenbrock, Mary Butterwick, Peg Gallagher, Dennis Wood. 16817 1983-01-11
Mexico, Baja California Sur, NE of Las Cuevas; 1.1 mi S of Microontas Las Barcitas and E along dirt rd ca 1.5 mi toward Rancho San Agustin.
OBI
OBI180478 R.D. Worthington 8955 1982-08-21
Mexico, Durango, Canatlan, along Hwy 45 north of Durango, 3.5 road miles south of the junction of Hwys 45 and 39 [=23?], 24.5 -104.666667, 1829m
OBI
OBI180097 David Keil; Melissa Luckow 15133 1981-08-27
Mexico, Colima, beach 3 mi SE of turnoff to Cuyutlan
OBI
OBI180528 A.C. Sanders 6315 1986-03-24
Mexico, Baja California, Ensenada, Along the road to Ejido Eréndira in the Valley of the Rio San Isidro, 8 miles west of Hwy 1, west of San Vicente, 31.32083 -116.32361, 152m
OBI
OBI180098 David Keil; T.F. Daniel, Mark Mohlenbrock, M.L. Butterwick, Peg Gallagher, Dennis Wood 16795 1983-01-11
Mexico, Baja California Sur, SE of San Bartolo at Playa Hermosa beach near Los Barriles, 23.67111 -109.7
OBI
OBI180499 L.R. Landrum; T. Nash; J. Poelt; B. Ryan 5432 1987-02-22
Mexico, Sonora, 24 miles E of Ures on road to Moctezuma
OBI
OBI180560 David Keil; Melissa Luckow, David Luckow 13314 1979-09-04
Mexico, Chihuahua, SW of Nuevo Casas grandes in Sierra Madre Occidental. Ca. 3 miles E of fork in road leading to Colonia Garcia and Colonia Pacheco en route from Colonia Juarez., 2012m
OBI
OBI180161 Louis C. Wheeler 9116 1966-11-12
Mexico, Baja California, Isla Angel de la Guarda, southeast corner.
OBI
OBI174201 Amy Stix; Mary Bueno 263 1960-01-10
Mexico, Veracruz, Near Laguna Mandinga Grande, Veracruz
OBI
OBI174162 R.D. Worthington 8755 1982-08-17
Mexico, Durango, E side of the city of Durango approx. 4 km E of the central district, 24.04417 -104.58333, 1890m
OBI
OBI174139 Elinor Lehto; D.J. Pinkava, B. Parfitt, T. Reeves L22083 1977-08-03
Mexico, Veracruz, 2 mi W. Fortin on the "free" Hwy to Orizaba. Bottom of deep canyon near Rio San Antonio, 0.2-0.7 mi N. Hwy & bridge., 18.9 -97, 762m
OBI
OBI174070 A. C. Sanders; M. Dimmitt, G. Montgomery, et al. 3553 1983-03-08
Mexico, Sonora, Caborca, North end of the Sierra El Viejo in the large canyon containing the Mina Santa Cruz, 25 mi. SW of Caborca. (Near 112° 22'W, 30° 22'N.), 30.36667 -112.36667, 671m
OBI
OBI174100 Ing. Marco Antonio Pérez Lara 239 1992-12-02
Mexico, Yucatán, Yucatán, Mpio. Temozón, 1 km al NW de Yokdzonot Presentado.
OBI
OBI174101 S.N. Stephenson 1968-11-00
Mexico, Sinaloa, 50 km northeast of Mazatlan, 500m
OBI
OBI169189 M.C. Johnston; T.L. Wendt; F. Chiang C. 11706 1973-07-05
Mexico, Coahuila, Mina El Aguirre¤o, north side of Sierra de la Paila.; 26.08333 -101.6, 26.08333 -101.6, 1700 - 2200m
OBI
OBI174093 C. Cowan 2655 1979-11-15
Mexico, Tabasco, Campo experimenta de Policultivo, campo del C.S.A.T. antes de llegar a la Técnica Chinampas