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CCDB → Angiosperms → Compositae → Ageratum → Ageratum houstonianum Mill.

36 chromosome counts in Ageratum houstonianum Mill.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IAPT/IOPB	IAPT/IOPB Chromosome Data 6
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20, 40	flora of NW Europe	http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=4153
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10(1)		Asteracea	Turner et al. 1962 Rhodora
!		Ageratum mexicanum Sims	Ageratum houstonianum Mill.	10(1)		Asteracea	Mathew & M. 1988 Glimpses Plant Res.
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10		IPCN65	Mehra et al. 1965
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10	20	IPCN online	Mathew, P. M. & A. Mathew. 1983. Studies on the south Indian Compositae V. Cytotaxonomic consideration of the tribes Vernonieae and Eupatorieae. Cytologia 48: 679–690.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IPCN online	George, S., V. Mathew & P. M. Mathew. 1989. Cytology of a few south Indian Eupatorieae (Compositae). Glimpses Cytogenet. India 2: 293–298.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10	20	IPCN online	Mathew, A. & P. M. Mathew. 1988. Cytological studies on the south Indian Compositae. Glimpses Pl. Res. 8: 1–177.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IPCN online	Morton, J. K. 1993. Chromosome numbers and polyploidy in the flora of Cameroon Mountain. Opera Bot. 121: 159–172.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	20		IPCN online	Razaq, Z. A., A. A. Vahidy & S. I. Ali. 1994. Chromosome numbers in Compositae from Pakistan. Ann. Missouri Bot. Gard. 81: 800–808.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10	20	IPCN online	Nazeer, M. A., G. V. Subramanyam, K. J. Madusoodanan & D. Ohri. 1981. Cytology of triploid hybrid of Ageratum Linn. Curr. Sci. 50: 97–98.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IPCN online	Sharma, A. K. & J. S. Dhakre. 1981. In Chromosome number reports LXXIII. Taxon 30: 854.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		40	IPCN online	SHUKUR, A., K. N. NARAYAN & C. SHANTAMMA. 1977. In IOPB chromosome number reports LV. Taxon 26: 107–109.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	20,10		IPCN online	King, R. M., D. W. Kyhos, A. M. Powell, P. H. Raven & H. Robinson. 1976 [1977]. Chromosome numbers in Compositae. XIII. Eupatorieae. Ann. Missouri Bot. Gard. 63(4): 862–888.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IPCN online	Probatova. 2006. Chromosome numbers of plants of the Primorsky Territory, the Amur River basin and Magadan region. Bot. Žhurn. (Moscow & Leningrad) 91(3): 491–509.
		Ageratum mexicanum Sims	Ageratum houstonianum Mill.	10		IPCN online	Mathew, P. M. & A. Mathew. 1983. Studies on the south Indian Compositae V. Cytotaxonomic consideration of the tribes Vernonieae and Eupatorieae. Cytologia 48: 679–690.
		Ageratum mexicanum Sims	Ageratum houstonianum Mill.		20	IPCN online	George, S., V. Mathew & P. M. Mathew. 1989. Cytology of a few south Indian Eupatorieae (Compositae). Glimpses Cytogenet. India 2: 293–298.
		Ageratum mexicanum Sims	Ageratum houstonianum Mill.	10		IPCN online	Mathew, A. & P. M. Mathew. 1988. Cytological studies on the south Indian Compositae. Glimpses Pl. Res. 8: 1–177.
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10		IPCN67-71	HSU, C.-c. 1967. Preliminary chromosome studies on the vascular plants of Taiwan (I). Taiwania No. 13: 117-130.
!		Ageratum houstonianum Mill	Ageratum houstonianum Mill.		c.40, 40	IPCN67-71	TORRES, A.M., & A.H. LIOGIER. 1970. Chromosome numbers of Dominican Compositae. Brittonia 22: 240-245.
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10		IPCN67-71	HSU, c.-c. 1970. Preliminary chromosome studies on the vascular plants of Taiwan (III) The aster family, Compositae. Taiwania 15: 17-29.
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	IPCN67-71	MIYAGI, C. 1971. Chromosome numbers in sperrnatophytes from Okinawa Islands (1). Biol. Mag. Okinawa 8: 14-23.
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Kumar, 1987	Cooper, D.C. & Mahony, K.L. 1935; Delay, C. 1947 ; Morrison, J.W. & Raj- hathy, T. 1960a ; Turner, B.L., Powell, M. & King, R.M. 1962 ; Mehra, P.N. et al. 1965; Hsu, C.-C. 1967, 1970; Dey, D & Sharma, A.K. 1968 ; Miyagi, C. 1971
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		40	Kumar, 1987	Shukur, A. et al. 1977
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		40, c.40	Kumar, 1987	Torres, A.M. & Liogier, A.H. 1970
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		30	Kumar, 1987	Nazeer, M.A. et al. 1981
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20,40	eFlora
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Fedorov, 1974	Cooper D., Mahony 1935
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Fedorov, 1974	Delay 1947
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Fedorov, 1974	Morrison J., Rajhathy 1960a
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Fedorov, 1974	Turner et al. 1962
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Fedorov, 1974	Mehra P. l\". et al. 1965
!		Ageratum mexicanum Sims	Ageratum houstonianum Mill.		20	Fedorov, 1974	Langlet 1925
!		Ageratum mexicanum Sims	Ageratum houstonianum Mill.		20	Fedorov, 1974	RaxnAae (T. 1927)
!		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.		20	Darlington, 1955	Cooper & M. 1935
		Ageratum houstonianum Mill.	Ageratum houstonianum Mill.	10		Cave1962	Turner et al. 1962