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.

CCDB → Angiosperms → Compositae → Erigeron → Erigeron tracyi Greene

6 chromosome counts in Erigeron tracyi Greene:

Show Statistics    
Export to CSV
Species statistics All fields
   
Export Fasta Counts
Median Minimum Max Distribution

		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Erigeron divergens var. cinereus A. Gray	Erigeron tracyi Greene		27(1)	Asteracea	Montgomery ＆ Y. 1960 Canad. J. Bot. (= Botany)
		Erigeron tracyi Greene	Erigeron tracyi Greene	27(2)		Asteracea	Ward 1983 Phytologia
		Erigeron divergens var. cinereus A. Gray	Erigeron tracyi Greene	27I(1)		Asteracea	Solbrig et al. 1969 Amer. J. Bot.
		Erigeron colomexicanus A. Nelson	Erigeron tracyi Greene	27		IPCN online	Ward, D. E. 1983. In: IOPB chromosome number reports LXXX. Taxon 32: 510–511.
		Erigeron divergens var. cinereus A. Gray	Erigeron tracyi Greene	18II		IPCN online	Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
		Erigeron divergens var. cinereus A. Gray	Erigeron tracyi Greene	27I		IPCN online	Keil, D. J. & D. J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. Amer. J. Bot. 63: 1393–1403.