CCDBAngiospermsCompositaeMachaerantheraMachaeranthera gracilis (Nutt.) Shinners

7 chromosome counts in Machaeranthera gracilis (Nutt.) Shinners:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2   IPCN online Powell, A. M. & S. A. Powell. 1978. Chromosome Numbers in Asteraceae. Madroño 25(3): 160–169.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners   1II+1 IPCN online Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II   IPCN online Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2   IPCN online Ward, D. E. & R. W. Spellenberg. 1986. Chromosome counts of angiosperms of western North America. Phytologia 61: 119–125.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II+1I   IPCN online Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II   IPCN online Semple, J. C., C. Xiang, J. Zhang, M. Horsburgh & R. Cook. 2001. Chromosme number determinations in Fam. Compositae, tribe Astereae. VI. Western North American taxa and comments on generic treatments of North American asters. Rhodora 103: 202–218.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2   IPCN online Weedin, J. F. & A. M. Powell. 1978. In IOPB chromosome number reports LX. Taxon 27: 223–231.