Papaloapan.--Lat. 18 11'; long. 96 06'; elev. 25 m. A small village on the Rio Papaloapan in northern Oaxaca; low evergreen forest and savanna [11].

Princesa, La.--Lat. 16 56'; long. 95 02'; elev. 150 m. A ranch on the northern slopes of the isthmus, 6 kilometers by road north of Matias Romero; poorly developed rainforest [34].

Quiengola, Cerro de.--Lat. 16 24'; long. 95 22'; elev. 900 m. (crest). A hill 15 kilometers west-northwest of Tehuantepec; dense scrub forest on slopes and scattered pines on top [55].

Salazar.--Lat. 16 25'; long. 95 20'; elev. 45 m. A ranch on the Rio Tehuantepec, northwest of Tehuantepec; dense scrub forest [52].

Salina Cruz.--Lat. 16 10'; long. 95 12'; sea level. A port on the Golfo de Tehuantepec; open arid scrub forest [70].

Collections were made in the vicinity of the town and in the open scrub forest 2.4 kilometers north at an elevation of 20 meters.

San Antonio.--Lat. 16 15'; long. 95 22'; elev. 40 m. A ranch about 25 kilometers west-southwest of Tehuantepec; arid scrub forest [68].

San Pablo.--Lat. 16 24'; long. 95 18'; elev. 40 m. A ranch on the Rio Tehuantepec, northwest of Tehuantepec; dense scrub forest [56]. Cerro San Pablo probably is the hill north of this ranch; this is shown on some maps as Cerro de los Amates.

San Pedro, Cerro de.--Lat. 16 18'; long. 95 28'; elev.

about 1100 m. (crest). A ridge about 24 kilometers west of Tehuantepec and east of Cerro Arenal; scrub forest on slopes and pine-oak forest on top [65].

Santa Efigenia.--Lat. 16 25'; long. 94 13'; elev. 500 m. A ranch on the southern slopes of the Sierra Madre de Chiapas, 8 kilometers north-northwest of Tapanatepec; scrub forest.

Former home of Francis Sumichrast [53].

Santa Lucia.--Lat. 16 18'; long. 95 28'; elev. 800 m. A place name for a former ranch on the east slopes of Cerro Arenal; scrub forest [63].

Santa Maria Chimalapa.--Lat. 16 55'; long. 94 42'; elev.

296 m. A village on the Rio de los Milagros, a tributary to the Rio Coatzacoalcos; rainforest [35].

Santiago Chivela.--Lat. 16 42'; long. 94 53'; elev. 200 m.

A village on the Trans-isthmian Highway, 13.4 kilometers by road south of Matias Romero; dry, gra.s.sy plains and scattered clumps of scrubby trees and palms [41].

Collections were made in the vicinity of the village and at a rocky stream, 11 kilometers south on the Trans-isthmian Highway at an elevation of 230 m.

Santo Domingo (Petapa).--Lat. 16 50'; long. 95 08'; elev.

225 m. A village about 13 kilometers west-southwest of Matias Romero; semi-arid scrub forest [37].

Sarabia.--Lat. 17 04'; long. 95 02'; elev. 100 m. A village 25 kilometers north of Matias Romero on the Trans-isthmian Highway; rainforest [32]. Collections were made in the vicinity of the village and in the rainforest along the Rio Sarabia, 5 kilometers north of the village at an elevation of 80 meters.

Tapanatepec.--Lat. 16 32'; long. 94 12'; elev. 90 m. A town on the Pan-American Highway on the lower slopes of the Sierra Madre de Chiapas; dense scrub forest [58].

Tehuantepec.--Lat. 16 20'; long. 95 14'; elev. 35 m. A large town on the Plains of Tehuantepec; scrub forest [61].

Collections were made in the vicinity of the town and in the dense scrub forest 8.6 kilometers west at an elevation of 85 meters and 14 kilometers west at an elevation of 120 meters.

Tenango.--Lat. 16 16'; long. 95 30'; elev. 1100 m. A town in the mountains about 40 kilometers west-southwest of Tehuantepec; scrub forest [67].

Tequisistlan.--Lat. 16 24'; long. 95 37'; elev. 190 m. A village in the valley of the Rio Tequisistlan, a tributary to the Rio Tehuantepec; dense scrub forest [54]. Most collections were made about one kilometer north of the village where the Pan-American Highway crosses the Rio Tequisistlan.

Tolosita.--Lat. 17 12'; long. 95 03'; elev. 80 m. A village on the Rio Tortuguero near the Trans-isthmian Highway; rainforest [30].

Tres Cruces.--Lat. 16 26'; long. 95 51'; elev. 750 m. A ranch near the Pan-American Highway, 70 kilometers by road west-northwest of Tehuantepec; dense scrub forest [49].

Tuxtepec--Lat. 18 06'; long. 96 05'; elev. 80 m. A town on the Rio Papaloapan in northern Oaxaca; low evergreen forest [12].

Ubero.--Lat. 17 18'; long. 95 00'; elev. 80 m. A lumber camp and railroad station, 8.5 kilometers south of the Rio Jaltepec on the Trans-isthmian Highway; rainforest [28].

Union Hidalgo.--Lat. 16 27'; long. 94 48'; elev. 7 m. A village on the railroad, 20 kilometers east-northeast of Juchitan; open scrub forest [48].

Ventosa, La.--Lat. 16 30'; long. 94 51'; elev. 25 m. A village at the junction of the Pan-American and Trans-isthmian highways; open scrub forest [46].

Zanatepec.--Lat. 16 28'; long. 94 22'; elev. 80 m. A village on the Pan-American Highway at the eastern edge of the Plains of Tehuantepec; dense scrub forest [47]. Most collections were made in the scrub forest 5 to 8 kilometers west-northwest of the village.

Zarzamora.--Lat. 16 21'; long. 95 48'; elev. 800 m. A ranch between La Reforma (16 kilometers west of Tequisistlan) and Santa Maria Ecatepec; scrub forest with oaks on higher ridges [59].

_Veracruz_

Acayucan.--Lat. 17 57'; long. 94 55'; elev. 160 m. A large town on the Trans-isthmian Highway; rainforest [21].

Collections were made in the vicinity of the town, but princ.i.p.ally at Rancho Las Hojitas, 7 kilometers northwest of town at an elevation of 150 meters.

Alvarado.--Lat. 18 47'; long. 95 47'; sea level. A fishing village at the mouth of the Rio Papaloapan; coastal dunes and marshes [1]. Most collections were made 1-3 kilometers southeast of the village in marshes on the leeward side of the coastal dunes.

Amat.i.tlan.--Lat. 18 26'; long. 95 45'; elev. 4 m. A village on the bank of the Rio Papaloapan; savanna and sugar plantations [6].

Aquilera.--Lat. 17 48'; long. 95 01'; elev. 150 m. A village 21 kilometers southwest of Acayucan on the Trans-isthmian Highway; rainforest [22].

Ayentes.--Lat. 18 10'; long. 94 26'; elev. 2 m. A railroad station on the east bank of the Rio Coatzacoalcos, across the river from the city of Coatzacoalcos; scrub forest and marshes [17].

Berta.--Lat. 18 07'; long. 94 27'; elev. 5 m. A ranch just south of Coatzacoalcos; scrub and low evergreen forest [15].

Chacaltianguis.--Lat. 18 18'; long. 95 52'; elev. 5 m. A village on the Rio Papaloapan; savanna [8].

Ciudad Aleman.--Lat. 18 13'; long. 96 07'; elev. 30 m. A new government town, headquarters of the Comision del Papaloapan; scrub and low evergreen forest [10].

Coatzacoalcos (formerly Puerto Mexico).--Lat. 18 10'; long.

94 27'; elev. 2 m. A seaport at the mouth of the Rio Coatzacoalcos; scrub on coastal dunes; marshes and low evergreen forest inland [16]. Most collections are from the forest-savanna ecotone, 8 kilometers southwest of town.

Cosamaloapan.--Lat. 18 22'; long. 95 50'; elev. 4 m. An agricultural town on the Rio Papaloapan; savanna and sugar plantations [7].

Cosoleacaque.--Lat. 17 59'; long. 94 38'; elev. 55 m. A village 8 kilometers by road west of Minat.i.tlan; savanna [19].

Cuatotolapam.--Lat. 18 08'; long. 95 16'; elev. 13 m. A village on the Trans-isthmian Railroad; savanna and low evergreen forest along streams [13].

Hueyapan.--Lat. 18 08'; long. 19 09'; elev. 85 m. A town 32 kilometers by road northwest of Acayucan; savanna and low evergreen forest [14]. Collections were made in the vicinity of the town and from forest 10 kilometers southeast of town at an elevation of 135 meters.

Jesus Carranza (formerly Santa Lucrecia).--Lat. 17 27'; long. 95 02'; elev. 80 m. A town and railroad junction in the middle of the isthmus; rainforest [26]. Most of Dalquest's specimens came from varying distances from Jesus Carranza along the Rio Coatzacoalcos and its tributaries.

Minat.i.tlan.--Lat. 17 58'; long. 94 32'; elev. 15 m. An oil refinery center on the Rio Coatzacoalcos; savanna [20].

Naranjo.--Lat. 17 35'; long. 95 07'; elev. 100 m. A village on the Trans-isthmian Highway, 45 kilometers south of Acayucan; rainforest and palm forest [24].

Novillero.--Lat. 18 16'; long. 95 59'; elev. 10 m. A village on the Rio Papaloapan; scrub forest and gra.s.sland [9].