Morphological and molecular data confirm the transfer of homostylous species in the typically distylous genus Galianthe (Rubiaceae), and the description of the new species Galianthe vasquezii from Peru and Colombia

  title={Morphological and molecular data confirm the transfer of homostylous species in the typically distylous genus Galianthe (Rubiaceae), and the description of the new species Galianthe vasquezii from Peru and Colombia},
  author={Javier Elias Florent{\'i}n and Andrea Alejandra Caba{\~n}a Fader and Roberto Manuel Salas and Steven B. Janssens and Steven Dessein and Elsa Leonor Cabral},
Galianthe (Rubiaceae) is a neotropical genus comprising 50 species divided into two subgenera, Galianthe subgen. Galianthe, with 39 species and Galianthe subgen. Ebelia, with 11 species. The diagnostic features of the genus are: usually erect habit with xylopodium, distylous flowers arranged in lax thyrsoid inflorescences, bifid stigmas, 2-carpellate and longitudinally dehiscent fruits, with dehiscent valves or indehiscent mericarps, plump seeds or complanate with a wing-like strophiole, and… Expand
Neotropical Rubiaceae: Synthesis of Chromosome Data from Costa Rican Taxa, with Insights on the Systematics of the Family1
The present study includes the first chromosome counts reported for the tribes Cordiereae and Hillieae, as well as for 10 genera and 27 species, providing new aspects of Rubiaceae systematics. Expand
Hexasepalum nordestinum (Rubiaceae): A New Species from Two Disjoint and Fragmented Areas in Northeast Brazil, with a Key to the American Species of the Genus
Hexasepalum nordestinum is described, a new species from northeast Brazil, which occurs in extremely fragmented areas of Ceará and Piauí states and is assessed here as endangered. Expand
Galianthe holmneielsenii (Spermacoceae-Rubiaceae): A New Rheophilous Species from the Pacific Coast of Colombia and Ecuador
Abstract A new species of Galianthe from the west coast of Colombia and Ecuador that has fruits with indehiscent mericarps is described and illustrated. Galianthe holmneielsenii is most similar toExpand
Diversification of galianthe species (Rubiaceae) in the neotropical seasonally dry forests: A case study of a mainly subshrubby genus
This research presents a novel and scalable approach called “Smart grids” that allows for real-time analysis of the response of the Response of the immune system to drought. Expand


Synopsis of Hexasepalum (Rubiaceae), the Priority Name for Diodella and a New Species from Brazil
The descriptions of the Hexasepalum species are complemented with a key, geographical distributions, and illustrations of key morphological characters and line drawings are provided for species not illustrated before in literature. Expand
Carajasia (Rubiaceae), a new and endangered genus from Carajás mountain range, Pará, Brazil
A molecular phylogenetic study was carried out using ITS and ETS sequences to determine the phylogenetic position of the new genus within the Spermacoce clade, demonstrating that Carajasia is sister to Galianthe with moderate to high support and Schwendenera form a weakly supported clade with Schwendenersa. Expand
Phylogeny of the Herbaceous Tribe Spermacoceae (Rubiaceae) Based on Plastid DNA Data1
This study is the first to address phylogenetic relationships within Spermacoceae from a tribal perspective and provides a phylogenetic hypothesis with broad sampling across the major lineages of Spermcoceae that can be used to guide future species-level and generic studies. Expand
Molecular phylogeny and biogeography of Erithalis (Rubiaceae), an endemic of the Caribbean Basin
DNA sequences of chloroplast (trnF-trnL) and nuclear non-coding spacers (ITS and ETS) indicate that Erithalis is monophyletic, and analyses of the combined data revealed two weakly supported clades: one composed of E. fruticosa and E. nk;harrisii, and a sister clade of the remaining species. Expand
Phylogenetic utility of the external transcribed spacer (ETS) of 18S-26S rDNA: congruence of ETS and ITS trees of Calycadenia (Compositae).
The 3' region of the external transcribed spacer of 18S-26S nuclear ribosomal DNA was sequenced in 19 representatives of Calycadenia/Osmadenia and two outgroup species to assess its utility for phylogeny reconstruction compared to rDNA internal transcribing spacer (ITS) data to conclude that the ETS holds great promise for augmenting ITS data for phylogenetic studies of young lineages. Expand
Se define el genero Diodia L. y se lo diferencia de los generos afines Borreria G. Mey., Galianthe Griseb., y Spermacoce L. Como resultado del estudio se reconocen como pertenecientes a este generoExpand
Glossary of pollen and spore terminology
The glossary of pollen and spore terminology was first presented to the international palynological community as the final outcome of the Working Group on Palynological Terminology at the 8thExpand
Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics
The nuclear small-subunit rDNA sequences (16S-like) evolve rela­ tively slowly and are useful for studying distantly related organisms, whereas the mitochondrial rRNA genes evolve more rapidly and can be useful at the ordinal or family level. Expand
Assessing Congruence: Empirical Examples from Molecular Data
Although it is readily apparent that multiple data sets are needed for estimating phylogenetic relationships reliably, it is also recognized that different genes may, in fact, possess different branching histories (see Chapter 10). Expand
New combinations in Hexasepalum (Rubiaceae: Spermacoceae)
Ten new combinations in Hexasepalum (Rubiaceae: Spermacoceae) are here proposed, for species formerly in Diodella..