Results 61 to 70 of about 920 (188)

Settling a family feud: a high‐level phylogenomic framework for the Gentianales based on 353 nuclear genes and partial plastomes

open access: yesAmerican Journal of Botany, Volume 108, Issue 7, Page 1143-1165, July 2021., 2021
Premise Comprising five families that vastly differ in species richness—ranging from Gelsemiaceae with 13 species to the Rubiaceae with 13,775 species—members of the Gentianales are often among the most species‐rich and abundant plants in tropical forests. Despite considerable phylogenetic work within particular families and genera, several alternative
Alexandre Antonelli   +15 more
wiley   +1 more source

SOBRE A ESTRUTURA FLORAL E COLÉTERES E SUA INFLUÊNCIA NA SISTEMÁTICA E EVOLUÇÃO EM ALGUMAS ESPÉCIES DE RUBIACEAE [PDF]

open access: yes, 2023
A literatura revela que as tribos Psychotrieae e Spermacoceae (Rubiaceae) têm problemas de delimitação de gêneros e espécies e sugere a necessidade de novos estudos, particularmente de natureza morfológica.
Ferreira dos Santos, Anderson   +3 more
core   +2 more sources

Studies in Otiophora Zucc. (Rubiaceae): 4. The taxonomic position of the genus

open access: yesBothalia: African Biodiversity & Conservation, 1983
An evaluation of the characters of Otiophora provides conclusive evidence that the genus should be excluded from the Anthospermeae, the tribe in which it has traditionally been placed.
Ch. Puff
doaj   +1 more source

Dos especies nuevas de Borreria (Rubiaceae), sinopsis y clave de las especies para Bahia, Brasil Two new species of Borreria (Rubiaceae), synopsis and key to distinguish the species from Bahia, Brazil

open access: yesActa Botânica Brasílica, 2011
El presente trabajo trata del estudio taxonómico del género Borreria (Rubiaceae) para el estado de Bahia, siendo registradas 29 especies. La mayor parte de estas especies habitan en los biomas del cerrado y la mata atlántica.
Elsa Leonor Cabral   +2 more
doaj   +1 more source

Staelia culcita (Rubiaceae), a new species from Minas Gerais, Brazil [PDF]

open access: yes, 2011
Background – The genus Staelia (Rubiaceae) remains imperfectly known. As part of the revision of the genus by the first author, a new species is here described and illustrated. Methods – Normal practices of herbarium taxonomy were used to study all the
Cabral, Elsa Leonor   +1 more
core   +2 more sources

Conflicting phylogenetic signals in genomic data of the coffee family (Rubiaceae)

open access: yesJournal of Systematics and Evolution, Volume 58, Issue 4, Page 440-460, July 2020., 2020
Abstract Reconstructions of phylogenetic relationships in the flowering plant family Rubiaceae have up until now relied heavily on single‐ or multi‐gene data, primarily from the plastid compartment. With the availability of cost‐ and time‐efficient techniques for generating complete genome sequences, the opportunity arises to resolve some of the ...
Niklas Wikström   +2 more
wiley   +1 more source

Iridoid glucosides from Pentas lanceolata (Forssk.) Deflers growing on the Island of Sardinia [PDF]

open access: yes, 2014
The ethanolic extract of Pentas lanceolata (Forssk.) Deflers was investigated from a phytochemical point of view and in particular on the monoterpenoid glucosides content.
Bianco, Armandodoriano   +3 more
core   +1 more source

Hedyotis hamiguitanensis (Rubiaceae: Spermacoceae), a new species from Mt. Hamiguitan, Davao Oriental, Philippines and its systematic position in Hedyotis

open access: yesWebbia, 2021
Hedyotis hamiguitanensis, from Mt. Hamiguitan, Davao Oriental, Philippines, is described, illustrated, and compared with two similar species, H. whiteheadii and H. schlechteri.
P. J. Santor   +4 more
semanticscholar   +1 more source

Estudios morfo-anatómicos de domacios foliares en Rubiáceas argentinas [PDF]

open access: yes, 2015
Este trabajo estudia los domacios foliares en Rubiáceas argentinas, los cuales son estructuras morfogenéticas frecuentes en el envés de las hojas de plantas leñosas, que permiten establecer relaciones mutualistas con ácaros u hormigas.
Gonzalez, Ana Maria   +2 more
core   +2 more sources

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