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	title = {Assessing phylogenetic relationships in extant heterosporous ferns (Salviniales), with a focus on Pilularia and Salvinia},
	journal = {Botanical Journal of the Linnean Society},
	volume = {157},
	year = {2008},
	month = {11/2007},
	chapter = {673-685},
	author = {N.S. Nagalingum and M.D. Nowak and K.M. Pryer}
}
@article {356,
	title = {Chromosome study of the fern genus cyrtomium (dryopteridaceae)},
	journal = {Botanical Journal of the Linnean Society},
	volume = {150},
	year = {2006},
	month = {2006},
	pages = {228},
	type = {Journal Article},
	chapter = {221},
	doi = {doi:10.1111/j.1095-8339.2006.00462.x},
	author = {LU, J and CHENG, X and WU, D and LI, D}
}
