Results 51 to 60 of about 466 (149)

A survey of generic names in Rubiaceae (Gentianales) with notes on context and patterns in naming

open access: yesTAXON, Volume 74, Issue 5, Page 1153-1171, October 2025.
Abstract Rubiaceae is one of the most diverse angiosperm families and consequently is the topic of much systematic research. Plenty of literature exists on the familial, tribal, and species level; however, a comprehensive overview of the names at the generic level is lacking. The aim of this study is to present a survey of all names and designations at
Brecht Verstraete   +2 more
wiley   +1 more source

Morphology and systematic value of orbicules : a preliminary survey of Spermacoce clade (Spermacoceae-Rubiaceae) [PDF]

open access: yes, 2021
Las orbículas son unas pequeñas estructuras de es- poropolenina que se encuentran en el interior de la antera en varios grupos de plantas. Rubiaceae re- sulta en una de las familias más estudiadas en este aspecto, sin embargo, existe poca ...
Núñez Florentín, Mariela   +1 more
core  

Pollen morphology of some species of Spermacoceae s.s. (Rubiaceae) of the Atlantic Forest, Rio de Janeiro, Brazil

open access: yesActa Botânica Brasílica
This work aimed to morphologically characterize 22 species of Spermacoceae s.s found in the Atlantic Forest in the state of Rio de Janeiro with the purpose of improving palynological knowledge of the studied species.
Vania Gonçalves-Esteves   +4 more
doaj   +1 more source

Biphyly of the genus Wendlandia and establishment of a new tribe Clavistigmateae and a new genus Clavistigma of Rubiaceae from Asia

open access: yesBiological Diversity, Volume 1, Issue 2, Page 58-74, June 2024.
Evidence of molecular and morphological data recovered the biphyly of Wendlandia and supports the establishment of a new genus, Clavistigma, and a new tribe, Clavistigmateae to accommodate the morphologically unique and phylogenetically isolated Wendlandia pendula.
Tieyao Tu   +14 more
wiley   +1 more source

Análisis panbiogeográfico del género Galianthe subgénero Ebelia (Rubiaceae)

open access: yesRodriguésia
Resumen Galianthe (Rubiaceae: Spermacoceae) es un género con los subgéneros Galianthe y Ebelia, éste último comprende 11 especies neotropicales, con centro de diversidad se encuentra en Brasil.
Javier E. Florentin   +2 more
doaj   +1 more source

Efficacy of Control of Glyphosate-Tolerant Species of the Rubiaceae Family Through Double-Knockdown Applications [PDF]

open access: yesPlanta Daninha, 2020
: Spermacoce latifolia, S. verticillata, and Richardia brasiliensis (family Rubiaceae, tribe Spermacoceae) are glyphosate-tolerant weeds in the soybean producing areas of Brazil. The weed shifts to glyphosate-tolerant weeds across soybean-producing areas
A. KALSING   +5 more
doaj   +1 more source

Phylogeny and classification of the coffee family (Rubiaceae, Gentianales): Overview and outlook

open access: yesTAXON, Volume 73, Issue 3, Page 673-717, June 2024.
Abstract The use of molecular data in phylogenetic reconstruction during more than three decades has greatly improved our understanding of the macroevolutionary history of the coffee family (Rubiaceae) and has provided a solid basis for improvement of its classification. Based on the results of 130 studies, among them most recent phylogenomic works, we
Sylvain G. Razafimandimbison   +1 more
wiley   +1 more source

Two new species of Psyllocarpus (Spermacoceae, Rubiaceae) from the state of Minas Gerais, southeastern Brazil

open access: yesEuropean Journal of Taxonomy, 2022
Two new species of Psyllocarpus sect. Psyllocarpus, P. itakangapyra Sobrado, J.A.M.Carmo & R.M.Salas sp. nov. and P. vianae Sobrado, J.A.M.Carmo & R.M.Salas sp.
Sandra V. Sobrado   +3 more
doaj   +1 more source

A new herbaceous genus endemic to Madagascar: **Phialiphora** (Spermacoceae, Rubiaceae)

open access: yes, 2010
: Phialiphora Groeninckx is described as a new herbaceous genus of Rubiaceae, endemic to NW Madagascar. The genus belongs to the predominantly herbaceous tribe Spermacoceae, and comprises two species: P. bevazahensis Groeninckx and P.
Davis, Aaron   +6 more
core   +1 more source

, a new monotypic genus in the Spermacoceae (Rubiaceae), endemic to the campo rupestre of Minas Gerais, southeastern Brazil

open access: yes, 2022
Spermacoceae is the largest predominantly herbaceous lineage in the Rubiaceae, and regarded as one of its most taxonomically complex and controversial tribe, especially regarding generic delimitation. Molecular phylogenies have established the concept of
Reginato, Marcelo   +11 more
core   +1 more source

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