Molecular Phylogenetics and Historical Biogeography of Subtribe Ecliptinae (Asteraceae, Heliantheae).

We present a molecular phylogeny for the subtribe Ecliptinae (Asteraceae, Heliantheae) based on three plastid (, , and ) and two nuclear (nrITS and nrETS) markers. The results of the phylogenetic reconstruction were utilised as a topological constraint for a subsequent divergence dating analysis and ancestral range reconstructions. We sampled 41 species and 40 genera (72%) of Ecliptinae and two species of (as outgroups) to elucidate the generic relationships between the genera of this subtribe.

A new classification system and taxonomic synopsis for Malpighiaceae (Malpighiales, Rosids) based on molecular phylogenetics, morphology, palynology, and chemistry.

Malpighiaceae has undergone unprecedented changes in its traditional classification in the past two decades due to several phylogenetic studies shedding light on the non-monophyly of all subfamilies and most tribes and genera. Even though morphological characters were used to reconstruct the last molecular generic phylogeny of Malpighiaceae, a new classification system has never been proposed for this family. Based on a comprehensive review of the last twenty years of published studies for this family, we propose a new classification system and provide a taxonomic synopsis for Malpighiaceae based on molecular phylogenetics, morphology, palynology, and chemistry as a baseline for the systematics, conservation, and taxonomy of this family worldwide.

, a new species of Malpighiaceae with verticillate leaves from savannas grasslands of central Brazil.

A new species of belonging to the Parabanisteria informal group is described for the savannas grasslands of the Serra do Tombador Natural Reserve, municipality of Cavalcante, State of Goiás, Brazil. is easily distinguished from the remaining Brazilian species of the Parabanisteria informal group due to its stems unbranched, leaves associated with the inflorescence verticillate, blades linear to very narrowly oblong, strongly conduplicate, ascending to upright, and sparsely sericeous to glabrous at age. We present a complete morphological description for the new species, photographic plates, comments on its distribution, ecology, and taxonomy, besides an identification key to the species of from the Parabanisteria group from the State of Goiás, Brazil.

Revisiting the taxonomy of the Neotropical Haemodoraceae (Commelinales).

Based on extensive herbarium, field, botanical illustration, and molecular phylogenetic research, five genera and eight species are recognised for the Neotropical Haemodoraceae. New taxa include Hopper et al., M.

Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of L.

A total evidence phylogeny for Pontederiaceae is herein presented based on new morphological and previously published molecular data. Our results led us to re-circumscribe to include , and the polyphyletic . We provide the needed ten new combinations and 16 typifications, arrange a total of 25 accepted species (six representing re-established names) in 5 new subgenera.

Erratum: Wandering throughout South America: Taxonomic revision of Tradescantia subg. Austrotradescantia (D.R.Hunt) M.Pell. (Commelinaceae).

[This corrects the article DOI: 10.3897/phytokeys.101.

Wandering throughout South America: Taxonomic revision of Tradescantia subg. Austrotradescantia (D.R.Hunt) M.Pell. (Commelinaceae).

I present the first taxonomic revision for T. subg. Austrotradescantia, based on extensive field, cultivation and herbaria studies.

Morphological phylogeny of L. (Commelinaceae) sheds light on a new infrageneric classification for the genus and novelties on the systematics of subtribe Tradescantiinae.

Throughout the years, three infrageneric classifications were proposed for along with several informal groups and species complexes. The current infrageneric classification accepts 12 sections - with T. sect.

Recircumscription and taxonomic revision of , with comments on the systematics of subtribe Dichorisandrinae (Commelinaceae).

A new circumscription and a total of six microendemic species, four of them new to science, are herein presented for , based on field and herbaria studies, and cultivated material. We provide an identification key to the species and a distribution map, description, comments, conservation assessment, and illustration for each species. Also, we present an emended key to the genera of subtribe Dichorisandrinae, and comments on the morphology and systematics of the subtribe.

Two peculiar new species of Ruiz & Pavón (Pontederiaceae) from Brazil, with notes on inflorescence architecture in the family.

Two new and peculiar species of are herein described. is unique in the genus due to its glomerulate, many-flowered inflorescences, in which the flowers are restricted to the base and apex of the cincinni. It also possesses the biggest flowers in the Ruiz & Pavón species complex, with glabrous perianth lobes, medial filament, and style.

Novelties in Brazilian L. (Commelinaceae).

We present a new record to the Brazilian territory (i.e. ), the rediscovery of a species exclusively known from the cultivated type collection (i.