{# load django_bootstrap5#%} CCDB server
Prof. Itay Mayrose Lab - Plant Evolution, bioinformatics, & comparative genomics


   CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.


CCDBAngiospermsCompositaeGrindeliaGrindelia squarrosa (Pursh) Dunal

50 chromosome counts in Grindelia squarrosa (Pursh) Dunal:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6(1)   Asteracea Turner & E. 1960 Texas J. Sci.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6(1)   Asteracea Solbrig et al. 1964 Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 1.90III+4.96II+2.44I(1) 18(1) Asteracea Dunford 1970b Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 4II+1IV(1)   Asteracea Dunford 1986 Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Powell et al. 2010 Phytologia
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(2)   Asteracea Dunford 1970a Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6(1)   Asteracea Powell & C. 1970 Ann. Missouri Bot. Gard.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Semple 1985 Rhodora
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 4I+1IVI(1)   Asteracea Dunford 1970a Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Semple 1985 Rhodora
  Grindelia squarrosa var. squarrosa Grindelia squarrosa (Pursh) Dunal 6II(4)   Asteracea Freeman & B. 1988 Sida (= J. Bot. Res. Inst. Texas)
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 4II+1IV(1)   Asteracea Dunford 1970a Amer. J. Bot.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 12(1)   Asteracea Schaack & W. 1983 Taxon
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 1.90III+4.96II+2.44I(1) 18(1) Asteracea Dunford 1970b Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Dunford 1986 Amer. J. Bot.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Semple et al. 2001 Rhodora
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 1.57II+4.43II+4.00I(1) 18(1) Asteracea Dunford 1970b Amer. J. Bot.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6(1)   Asteracea Solbrig et al. 1964 Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II(1)   Asteracea Dunford 1986 Amer. J. Bot.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 1.57II+4.43II+4.00I(1) 18(1) Asteracea Dunford 1970b Amer. J. Bot.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 12(1) 24(1) Asteracea Whitaker & S. 1935 Bull. Torrey Bot. Club (= J. Torrey Bot. Soc.)
  Grindelia aphanactis Rydb. Grindelia squarrosa (Pursh) Dunal 12   IPCN online Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686.
  Grindelia squarrosa var. serrulata (Rydb.) Steyerm. Grindelia squarrosa (Pursh) Dunal   12 IPCN online Turner, B. L. & Z. Zhao. 1992. Documented chromosome numbers 1992: 2. Miscellaneous U.S.A. and Mexican species, mostly Asteraceae. Sida 15: 147–150.
  Grindelia squarrosa var. serrulata (Rydb.) Steyerm. Grindelia squarrosa (Pursh) Dunal 6II   IPCN online Lane, M. A. & J. Li. 1993. Documented chromosome numbers 1993: 1. Chromosome number reports in Compositae with emphasis on tribe Astereae of the southwestern United States and Mexico. Sida 15: 539–546.
  Grindelia squarrosa var. serrulata (Rydb.) Steyerm. Grindelia squarrosa (Pursh) Dunal 6   IPCN online Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 12   IPCN online Love, A. & H. E. Connor. 1982. Relationships and taxonomy of New Zealand wheat grasses. New Zealand J. Bot. 20: 169–186.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II   IPCN online Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6   IPCN online Dunford, M. 1986. Chromosome relationships of diploid species of Grindelia (Compositae) from Colorado, New Mexico and adjacent areas. Amer. J. Bot. 73: 297–303.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6   IPCN online Schaack, C. G. 1983. In IOPB chromosome number reports LXXX. Taxon 32: 509.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 IPCN online Volkova, S. A. & E. V. Boyko. 1986. Chromosome numbers in some species of Asteraceae from the southern part of the Soviet far east. Bot. Zhurn. 71: 1693.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 IPCN online Lavrenko, A. N. & N. P. Serditov. 1991. Chromosome numbers in some plant species from the south-west of the Komi ASSR. Bot. Žhurn. (Moscow & Leningrad) 76: 769–771.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 IPCN online Parfitt, B. D. 1981. ln Chromosome number reports LXXI. Taxon 30: 515–516.
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6II   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.
!   Grindelia squarrosa var. nuda (A. Wood) A. Gray Grindelia squarrosa (Pursh) Dunal 6II   IPCN online Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
  Grindelia squarrosa var. squarrosa Grindelia squarrosa (Pursh) Dunal 6II   IPCN online Freeman, C. C. & R. E. Brooks. 1988. Documented plant chromosome numbers 1988: 1. Chromosome counts for North American plants -- I. Sida 13: 241–250.
  Grindelia aphanactis Rydb. Grindelia squarrosa (Pursh) Dunal 12   IPCN67-71 DUNFORD, M.P. 1970. Triploid and tetraploid hybrids from diploid X tetraploid crosses in Grindelia (Compositael. Amer. J. Bot. 57: 856-860.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   24 IPCN67-71 CHOUKSANOVA, N.A., L.I. SVESHNIKOVA, & T.V. ALEXANDROVA. 1968. Data on karyology of the family Compositae Giseke. Citologija 10: 198-206.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal 6   IPCN67-71 POWELL, A.M. & s. SIKES. 1970. Chromosome numbers of some chihuahuan desert Compositae. Southw. Naturalist 15: 175-186.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 IPCN67-71 DUNFORD, M.P. 1971. Chromosome characteristics of Texas species of Grindelia (Compositael and some interspecific hybrids. southw. Naturalist 16: 131-142.
!   Grindelia squarrosa var. nuda (A. Wood) A. Gray Grindelia squarrosa (Pursh) Dunal 12 24 IPCN67-71 WHITAKER, T.W . & J.A. STEYERMARK. 1935. Cytological aspects of Grindelia species. Bull. Torrey Bot. Club 62: 69-73.
  Grindelia aphanactis Rydb. Grindelia squarrosa (Pursh) Dunal   24 IPCN73-74 KOVANDA, M. 1972. Somatic chromosome numbers for some Asteraceae. Rhodora 74: 102-116.
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 eFlora  
  Grindelia aphanactis Rydb. Grindelia squarrosa (Pursh) Dunal   24 Fedorov, 1974 Raven et al. 1960
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 Fedorov, 1974 Howe 1926
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 Fedorov, 1974 Raven et al. 1960
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 Fedorov, 1974 Turner, Ellison 1960
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 Fedorov, 1974 Solbrig et al. 1964
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   24 Fedorov, 1974 Whitaker, Steyermark ' 1935 k
!   Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   24 Fedorov, 1974 UyKcaHoBa u ;t~p. 1968a
  Grindelia squarrosa (Pursh) Dunal Grindelia squarrosa (Pursh) Dunal   12 IAPT/IOPB IAPT/IOPB Chromosome Data 22