@article {4059,
	title = {Recognition of the genus Thaumatophyllum Schott - formerly Philodendron subg. Meconostigma (Araceae) - based on molecular and morphological evidence},
	year = {2018},
	abstract = {<p>Philodendron subgenus Meconostigma has been a well-circumscribed group since 1829. Members of this group are easily distinguished by diagnostic morphological characters as well as by a distinct ecology and geographical distribution. Based on molecular, morphological and cytological evidence, we propose the recognition of P. subg. Meconostigma as a distinct genus, Thaumatophyllum Schott. We also present the necessary new combinations, an emended key and some nomenclatural and taxonomic corrections regarding 21 names of Thaumatophyllum.</p>
},
	keywords = {chromosomes, molecular phylogeny, morphology, nomenclature, Philodendron, Thaumatophyllum},
	doi = {doi: 10.3897/phytokeys.98.25044 },
	author = {Sakuragui, C.M. and Calazans, L.S.B. and Loss-Oliveira, L. and Morais, E.B. and Benko-Iseppon, A.M. and Vasconcelos, S. and Schrago, C.G. and Mayo, S.J.}
}
@article {4051,
	title = {Molecular phylogeny of the genus Philodendron (Araceae): delimitation and infrageneric classification },
	year = {2008},
	abstract = {<p>The genus Philodendron (Araceae) is a large neotropical group whose classification remains unclear. Previous classifications are based on morphological characters, mainly from the inflorescence, flower and leaf shape. The classification by Krause, with few modifications, is still the most commonly used system. To examine phylogenetic relationships in the genus, two ribosomal DNA nuclear markers, internal transcribed spacer (ITS) and external transcribed spacer (ETS), and the chloroplast intron rpl16, were sequenced and analysed for more than 80 species of Philodendron and its close relative Homalomena. According to the resulting phylogeny, the genus Homalomena may be paraphyletic to the genus Philodendron. The inclusion of the American Homalomena species within the genus Philodendron might resolve this taxonomic problem. All three subgenera of Philodendron were revealed as monophyletic. Below the subgeneric level, the groups obtained in our phylogeny globally correspond to sections recognized in previous classifications. Among the morphological characters used by previous taxonomists to build their classifications, and which we optimized onto one of the most parsimonious trees, most characters were found to be homoplasious. However, leaf shape, characteristics of the sterile zone on the spadix and venation patterns are useful for delimiting subgenera and sections within the genus.</p>
},
	keywords = {external transcribed spacer (ETS), Homalomena, internal transcribed spacer (ITS), morphology, rpl16 intron},
	author = {Gauthier, M.-P.L. and Barab{\'e}, D. and Bruneau, A.}
}
@article {1246,
	title = {Leaf midrib outline as a diagnostic character for taxonomy in Anthurium section Urospadix subsection Flavescentiviridia (Araceae)},
	journal = {Hoehnea},
	volume = {(36)2},
	year = {2009},
	month = {08/2009},
	pages = {277-269},
	abstract = {The external morphology of the midrib of the leaf lamina is used as a diagnostic character for the taxonomy of species of Anthurium subsection Flavescentiviridia (section Urospadix) (Araceae). Our aims in this study are: characterize using morphological analysis the variation of the outline of the midrib along the leaf lamina using 22 of the 35 species of the subsection; evaluate the potential of this variation as a diagnostic tool for taxonomy. For each species, the leaf lamina was divided into three pieces of identical length. The median point of each region was transversely sectioned and its outline drawn with the aid of a camera lucida and microscope. Five distinct types of outlines were classifi ed using current terminology. Considering the diffi culty of diagnosing many of the species, this character could be useful for the taxonomy of this subsection.},
	keywords = {leaf, monocots, morphology, species diagnosis},
	author = {Mantovani, Andr{\'e} and Pereira, Tha{\'{\i}s Estefani and Coelho, Marcus Nadruz}
}
