JANUARY 1 TO DECEMBER 31, 1955 309 



230279 to 230318— Continued 

 230279 to 230292 — Continued 



230*282. Col. No. 15858. Temescal, Oaxaca. In milpa clearing; a foot of dark 

 brown forest soil over laterite. Nov. 6, 1955. Small shoots from scattered 

 tubers; roots white to reddish. 



230283. Col. No. 15859. Arroyo Chuapa, 8 miles west of Tuxtepec, Oaxaca. 

 Milpa clearing. Nov. 7, 1955. New shoots from partially dug plants; roots 

 white to reddish. 



230284. Col. No. 15860. Fifteen to 22 miles west of Tuxtepec, Oaxaca. For- 

 rested limestone slope. Nov. 7, 1955. Plants small to large; new shoots from 

 cut stems in cleared land. 



230285. Col. No. 15861. Fifteen miles west of Tuxtepec, Oaxaca. Nov. 7, 

 1955. Vine climbing to 30 feet, 3 stems from the base; leaves large. 



230286. Col. No. 15864. 'Barbasco'. Seven miles south of Tierra Blanca, 

 Loma del Carmen, Veracruz. Forest patch in savanna. Nov. 8, 1955. Vine 

 large; root horizontal, white. 



230287. Col. No. 15869. 'Barbasco'. Fourteen miles south of Santiago 

 Tuxtla, Veracruz. Nov. 9, 1955. Low evergreen silva. Elevation 500 feet. 

 Vines coarse, climbing; roots tuberous, mostly white. 



230288. Col. No. 15871. One mile north of San Andres Tuxtla, Veracruz. 

 Nov. 9, 1955. 



230289. Col. No. 15872. Ten miles east of San Andres Tuxtla along road to 

 Puerto Mexico, Veracruz. Nov. 10, 1955. Vine large; roots white to reddish. 



230290. Col. No. 15873. Fourteen miles east of San Andres Tuxtla along road 

 to Puerto, Veracruz. Nov. 10, 1955. Vine large; stem to 1 inch in diameter; 

 root large, white to pink. 



230291. Col. No. 15874. 'Barbasco Blanco'. Fourteen miles east of San 

 Andres Tuxtla along road to Puerto Mexico, Veracruz. Nov. 10, 1955. Vines 

 large; shoots new; roots deeply descending, white. 



230292. Col. No. 15881. Two and one-half miles off highway to Veracruz 

 along road to Tezonapa and Palmar. Nov. 12, 1955. Cultivated; common 

 15 to 20 years ago in forest. 



230293 to 230298. Dioscorea floribunda Mart. & Gal. Yam. 



230293. Col. No. 15853. 'Barbasco Amarillo'. Four miles west of Las Tinajas 

 along road to Veracruz; soil sandy. Nov. 4, 1955. Plant infrequent; root 

 flesh yellow. 



230294. Col. No. 15875. Seven miles west of Veracruz along road to Jalapa. 

 Root flesh yellow; soil black clay. 



230295. Col. No. 15876. Three miles east of Plan del Rio along road to Jalapa, 

 Veracruz. Root flesh yellow; soil black clay. Nov. 11, 1955. 



230296. Col. No. 15877. Three miles east of Plan del Rio along road to Jalapa 

 from Veracruz. Black loamy soil. Nov. 11, 1955. 



230297. Col. No. 15880. San Jose de Abajo, 8 miles east of Cordoba, Veracruz. 

 Nov. 12, 1955. 



230298. Col. No. 15890. About 11 miles northwest of Tuxtla Gutierrez along 

 road to San Fernando. Nov. 17, 1955. Root flesh cream-colored. 



230299 to 230307. Dioscorea spiculiflora Hemsl. Yam. 



230299. Col. No. 15886. 'Barbasco de Villa Flores'. Twenty-five miles west of 

 Tuxtla Gutierrez along highway to Oaxaca, Chiapas. Low tropical forest. 

 Nov. 18, 1955. Root flesh white. 



230300. Col. No. 15887. 'Barbasco de Villa Flores'. Twenty-five miles west 

 of Tuxtla Gutierrez along highway to Oaxaca, Chiapas. Low tropical forest. 

 Nov. 19, 1955. 



