There are 6 pages with 55 entries

Results
 Family  Genus  Specific epithet  Ploidy level  Chromosome number  Bs range  Complete citation reference
Pinaceae Picea obovata 2,00 24 1-3 Pravdin, L. F., Abaturov, G. A., & Shershukova, O. P. (1976). Karyological analysis of European and Siberian spruce and their hybrids in the USSR. Silvae Genetica, 25, 89–95.
Pinaceae Picea sitchensis 2,00 24 1-3 Moir, R. B., & Fox, D. P. (1976). Supernumerary chromosomes and growth rate in Picea sitchensis (Bong.) Carr. Silvae Genetica, 25, 139–141
Pinaceae Picea engelmannii 2,00 24 Bs Teoh, S. B., & Rees, H. (1977). B Chromosomes in White Spruce. Proceedings of the Royal Society B: Biological Sciences, 198(1133), 325–344.
Pinaceae Picea sitchensis 2,00 24 Bs Teoh, S. B., & Rees, H. (1977). B Chromosomes in White Spruce. Proceedings of the Royal Society B: Biological Sciences, 198(1133), 325–344.
Pinaceae Picea glauca 2,00 24 1-5 Teoh, S. B., & Rees, H. (1977). B Chromosomes in White Spruce. Proceedings of the Royal Society B: Biological Sciences, 198(1133), 325–344.
Pinaceae Picea sitchensis 2,00 24 1-5 Moir, R. B., & Fox, D. P. (1977). Supernumerary chromosome distribution in provenances of Picea sitchensis (Bong.) Carr. Silvae Genetica, 26, 26–33
Pinaceae Picea glauca 2,00 24 Bs Moir, R. B., & Fox, D. P. (1977). Supernumerary chromosome distribution in provenances of Picea sitchensis (Bong.) Carr. Silvae Genetica, 26, 26–33
Pinaceae Picea sitchensis 2,00 24 1-5 Kean, V. M., Fox, D. P., & Faulkner, R. (1982). The accumulation mechanism of the supernumerary (B-) chromosome in Picea sitchensis (Bong.) Carr. and the effect of this chromosome on male and female flowering. Silvae Genetica, 31,
Pinaceae Pinus sylvestris 2,00 24 1 Muratova, E. N., & Kruklis, M. V. (1988). Chromosome numbers of gymnospermous plants.
Pinaceae Picea ajanensis 2,00 24 1-2 Goldblatt, P., & Johnson, D. E. (2006). Index to plant chromosome : numbers 2001-2003. St. Louis,Missouri (U.S.A.): Missouri Botanical Garden.

B-chrom database 2017