We are currently maintaining only the following group of tetraploids .   Whereas we formerly stocked many more lines, the rapid deterioration, low seed yields, and lack of demand required that we prune them to a smaller group of more frequently used lines .   Additional autotetraploids appear in the wild species stock list (TGC 48) and below under Latin American Cultivars . 2 - 095 cv . San Marzano 2 - 483 cv . Red Cherry LA 0793 a, c, d, l, r, y 0794 ag, t v 2335 L . pimpinellifolium 2336 r in L . pimpinellifolium 2337 cv . Stokesdale 2338 cv . Break O'Day 2339 cv . Pearson 2340 L . pimpinellifolium 2341 L . pimpinellifolium 2342 cv . Danmark 2343 cv . Waltham Fog 3131 cv . UC82B 3255 cv . Ailsa Craig VI .   Trisomics (31) The following series includes various kinds of extra chromosomes . Since the extras are transmitted irregularly, each stock necessarily consists of a majority of diploids, the remainder aneuploid . Primary trisomics yield primaries, rarely tetrasomics .   Telotrisomics yield telos and an occasional rare tetratelosomic . Secondary, tertiary, and compensating trisomics transmit other trisomic types as expected .   Because transmission is irregular and reproduction of stocks requires much labor, our stocks are limited .   In requesting our aneuploids, correspondents should keep these points in mind . To assist in the identification of primary trisomics at the seedling stage, the key features of each have been summarized by Rick (TGC 37:60 - 61, 1987) .   Additional 2n+1 stocks are listed below under Monosomic Alien Additions . Primary:  10 Triplo - 1  06 Triplo - 2  08 Triplo - 3  02 Triplo - 4  04 Triplo - 5  12 Triplo - 6  07 Triplo - 7  03 Triplo - 8  05 Triplo - 9  01 Triplo - 10  40 Triplo - 11  09 Triplo - 12