@article {226,
	title = {Studies on chromosome numbers and spore size in Brazilian Iso{\"e}tes},
	journal = {American Fern Journal},
	volume = {105},
	number = {3},
	year = {2015},
	pages = {226-237},
	abstract = {The lycophyte genus Iso{\"e}tes L. is nearly cosmopolitan, with approximately 350 species, 23 of which occur in Brazil. The lack of adequate distinguishing morphological characters in the leaves and stems, as well as the frequent cases of hybridization and polyploidy, makes the identification of species very difficult. Usually the spores provide the best characters for distinguishing species within Iso{\"e}tes, but these can vary in size because of polyploidy and hybridization. In this work we studied the variation in size of both mega- and microspores, and the relationship between size and ploidy level. We also present the first chromosome counts for seven species that are endemic to Brazil: I. goebelii (2n  =  33), I. martii (2n  =  44), I. maxima (2n  =  22), I. organensis (2n  =  66), I. ramboi (2n  =  44) I. smithii (2n  =  44), and I. spannagelii (2n  =  22). Our results suggest a correlation between ploidy level and spore size can be useful for the establishment of a preliminary hypothesis on polyploidy and hybridization among Brazilian Iso{\"e}tes.},
	author = {Pereira, J.B. and Mittelbach, M. and Labiak, P.H.}
}
@article {17,
	title = {Isoetes mourabaptistae, a new species from Southern Brazil},
	journal = {American Fern Journal},
	volume = {102},
	year = {2012},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2012///},
	pages = {174 - 180},
	abstract = {Isoetes mourabaptistae, a new species from southern Brazil, is described, illustrated, and compared to the most similar species. This new species is apparently restricted to southern Brazil, and is characterized by cristate to irregularly reticulate megaspores and microechinate microspores. It is an aquatic plant, occurring among submersed rocks along rivers, at about 9001100 m in elevation. {\textcopyright} 2012, American Fern Society.},
	keywords = {aquatic plants, diversity, Isoetaceae, lycophytes, taxonomy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868016532\&partnerID=40\&md5=d3bc8e1e27c5d582b331a37819fb1514},
	author = {Pereira, J.B. and Windisch, P.G. and Lorscheitter, M.L. and Labiak, P.H.}
}
