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CCDB → Angiosperms → Compositae → Erigeron → Erigeron philadelphicus L.

21 chromosome counts in Erigeron philadelphicus L.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Erigeron philadelphicus subsp. philadelphicus	Erigeron philadelphicus L.		18(1)	Asteracea	Morton, J. K. 1988 Canad. J. Bot. (= Botany)
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9(1)	-1	Asteracea	Gervais & C. 1985 Naturaliste Canadien
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9II(1)		Asteracea	Taylor & B. 1966 Canad. J. Bot. (= Botany)
!		Erigeron philadelphicus var. philadelphicus	Erigeron philadelphicus L.		18(1)	Asteracea	Morton, J. K. 1988 Canad. J. Bot. (= Botany)
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9		IPCN65	Bostick 1965
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	IPCN online	Love, A. & H. E. Connor. 1982. Relationships and taxonomy of New Zealand wheat grasses. New Zealand J. Bot. 20: 169–186.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	IPCN online	Love, A. & D. Love. 1982. In: A Löve (ed.), IOPB chromosome number reports LXXV. Taxon 31(2): 344–360.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	IPCN online	Chinnappa, C. C. & J. G. Chmielewski. 1987. Documented plant chromosome numbers 1987: 1. Miscellaneous counts from western North America. Sida 12: 409–417.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9II		IPCN online	Nesom, G. L. 1978. Chromosome numbers in Erigeron and Conyza (Compositae). Sida 7: 375–381.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		9	IPCN online	Nesom, G. L. 1978. Chromosome numbers in Erigeron and Conyza (Compositae). Sida 7: 375–381.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9		IPCN online	Mulligan, G. A. 1984. Chromosome numbers of some plants native and naturalized in Canada. Naturaliste Canad. 111: 447–449.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	IPCN online	Hill, L. M. 1989. IOPB chromosome data 1. Int. Organ. Pl. Biosyst. Newslett. (Zurich) 13: 17–19.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9	18	IPCN online	Morton, J. K. 1981. Chromosome numbers in Compositae from Canada and the U.S.A. Bot. J. Linn. Soc. 82: 357–368.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	IPCN online	Semple, J. C. 1980. In Chromosome number reports LXVII. Taxon 29: 357–358.
!		Erigeron philadelphicus var. philadelphicus	Erigeron philadelphicus L.		18	IPCN online	Morton, J. K. 1988. Variation in Erigeron philadelphicus (Compositae). Canad. J. Bot. 66(2): 298–302.
		Erigeron philadelphicus subsp. philadelphicus	Erigeron philadelphicus L.		18	IPCN online	Morton, J. K. 1988. Variation in Erigeron philadelphicus (Compositae). Canad. J. Bot. 66(2): 298–302.
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9		IPCN66	Taylor & Brockman 1966
		Erigeron philadelphicus L.	Erigeron philadelphicus L.	9		IPCN67-71	SOLBRIG, Q.T., L.C. ANDERSON, D.W. KYHOS, & P.H. RAVEN. 1969. Chromosome numbers in Compositae. VIII: Astereae III. Amer. J. Bot. 56: 348-353.
		Erigeron philadelphicus var. philadelphicus	Erigeron philadelphicus L.		18	eFlora
		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	Cave1957	Mulligan
!		Erigeron philadelphicus L.	Erigeron philadelphicus L.		18	Cave1959	Huziwara 1958