The exploration for grain legumes was conducted in collaboration with Vietnamese goverment from February 24 to March 23, 1994. The intinerary, route and locality of exploration are shown Table 1 and Fig. 1. We visited East-North area, Central-South Plateau area and Central-South Coast area to collect local varieties which are in danger of disappearing. We collected a total of 163 samples, which consists of 160 local varieties and 3 wild species. The number of each species is as follows, 41 samples of Glycine max, 43 samples of Vigna unguiculata, 40 samples of Vigna radiata, 6 samples of Vigna umbellata, 2 samples of Vigna glabrescens, 21 samples of Arachis hypogaea, 5 samples of Lablab purpureus, 2 samples of Phaseolus lunatus, 1 sample of Phaseolus vulgaris, 1 sample of Cajanus sajan and another legume. These legmues are cultivated mostly in rainy season and used in daily life for food and feed. The different characters of samples are exhibited in seed color, cotyledon color, seed size, number of seed, pod type and growing period
