The taxonomy of the genus Crocus is extremely complicated due to the lack of clear distinctive characters, the wide range of habitats and the heterogeneity of the morphological traits and cytological data.
Moreover they show that there are several problems at the infraspecific level. Genetic dissimilarities between the known subspecies revealed that most of the subspecies must be ranked as species.
This gens is very interest for médecine... So, it need to review this litterature for the problemes in taxonomy & see more attentive the chemical data too.
I believe there should be much broader taxonomic groups
The genus Crocus L. belongs to the large family Iridaceae and is a systematically problematic genus. In the Old World, about 100 species are known (Harpke et al., 2013, Erol, et al. 2014). Although molecular studies have been increasingly used to examine the phylogeny of living organisms, they have only recently been applied to the genus Crocus (Petersen et al., 2008). DNA markers have been used to characterize germplasm collections, inform breeding programs, and facilitate genetic diversity studies and taxonomic analysis. The utilized methods include interretrotransposon amplified polymorphism (IRAP) (AlaviKia et al., 2008), random amplified polymorphic DNA (RAPD) (Grilli Caiola et al., 2004; Beiki et al., 2010; Rubio-Moraga et al., 2010), amplified fragment length polymorphism (AFLP) (Zubor et al., 2004; Erol et al., 2011; Nazzal et al., 2011), intersimple sequence repeat (ISSR) (Rubio-Moraga et al., 2010), and simple sequence repeat (SSR) (Rubio-Moraga et al., 2010; Nemati et al., 2012) analyses. Among these molecular markers, AFLPs were found to show high levels of polymorphism per primer pair and yield high resolution and reproducibility (Meudt and Clarke, 2007). For more information follow article of (Erol et al. 2014):
http://journals.tubitak.gov.tr/biology/issues/biy-14-38-1/biy-38-1-6-1305-14.pdf
http://flora.org.il/en/plants/CRODAM/
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=108403
http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200028148
http://www.floraiberica.es/eng/PHP/cientificos_.php?gen=Crocus
http://luirig.altervista.org/flora/taxa/floranam.php?genere=Crocus
Article Phylogeny, karyotype evolution and taxonomy of Crocus ser. V...
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