Stephan Andersson (2006). "On the phylogeny of the genus Calceolaria (Calceolariaceae) as inferred from ITS and plastid matK sequences". Taxon. 55 (1): 125–137. doi:10.2307/25065534. JSTOR25065534.
jstor.org
Stephan Andersson (2006). "On the phylogeny of the genus Calceolaria (Calceolariaceae) as inferred from ITS and plastid matK sequences". Taxon. 55 (1): 125–137. doi:10.2307/25065534. JSTOR25065534.