Results 141 to 150 of about 598 (174)
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Borreria kelleri (Spermacoceae, Rubiaceae), a new species from Argentina and Paraguay

Nordic Journal of Botany, 2022
Borreria kelleri (Spermacoceae, Rubiaceae), is described as a new species from northeastern Argentina and Paraguay. The new species is morphologically similar to B. quadrifaria due to the presence of densely and notable hairs in the angles of the stems and pantoporate ...
L. M. Miguel   +4 more
semanticscholar   +3 more sources

Notes on Galianthe (Spermacoceae, Rubiaceae) in the Bolivian flora

Brittonia, 2005
Four new species ofGalianthe (G. boliviana, G. chiquitosana, G. sudyungesis, andG. kempffiana) for Bolivia are described and illustrated.Galianthe kempffiana is also known from Brazil.Galianthe laxa andG. bisepala are reported for the first time for Bolivia.
Elsa L Cabral
exaly   +2 more sources

The phylogenetic utility of chloroplast and nuclear DNA markers and the phylogeny of the Rubiaceae tribe Spermacoceae

Molecular Phylogenetics and Evolution, 2008
The phylogenetic utility of chloroplast (atpB-rbcL, petD, rps16, trnL-F) and nuclear (ETS, ITS) DNA regions was investigated for the tribe Spermacoceae of the coffee family (Rubiaceae). ITS was, despite often raised cautions of its utility at higher taxonomic levels, shown to provide the highest number of parsimony informative characters, in ...
Inge Groeninckx   +2 more
exaly   +3 more sources

Molecular‐based phylogenetic placement and revision of Micrasepalum ( Spermacoceae‐Rubiaceae )

Taxon, 2021
Fil: Janssens, Steven.
Mariela Nuñez Florentín   +4 more
semanticscholar   +3 more sources

Dentella cylindrica sp. nov. (Rubiaceae: Tribe Spermacoceae) from Andaman and Nicobar Islands, India

Indian Journal of Forestry, 2020
Dentella cylindrica M.C. Naik and L.J. Singh from Andaman and Nicobar Islands, India is described and illustrated as a new species. An illustration, images, and a key to the species of Dentella in India is provided.
Mudavath Chennakesavulu Naik   +2 more
exaly   +2 more sources

Arcytophyllum leymebambense (Rubiaceae: Spermacoceae), a new species with an isolated phylogenetic position and distinct morphology from northern Peru [PDF]

open access: yesPlant Ecology and Evolution
Background and aims – The newly described species Arcytophyllum leymebambense sp. nov. (Rubiaceae) from the Amazonas department of northern Peru represents an isolated lineage within the monophyletic genus Arcytophyllum .
D. Montesinos-Tubée   +3 more
semanticscholar   +4 more sources

Involucrella lithophila (Rubiaceae: Spermacoceae): A new species from Guangxi, China

Phytotaxa, 2020
Involucrella lithophila from the limestone area of Guangxi, China, is described and illustrated here. It is most similar to Hedyotis kurzii and Involucrella chereevensis in having tetragonal stems, slender pedicels and loculicidally dehiscent capsules ...
Ming Yuan, Rui-jiang Wang
semanticscholar   +2 more sources

Uncovering hidden diversity: Oldenlandia bahiana, a neglected new species endemic to Brazil (Spermacoceae, Rubiaceae), revealed by integrative approach [PDF]

open access: yesPlant Ecology and Evolution
Background and aims – Oldenlandia is a taxonomically complex and polyphyletic genus with approximately 160 pantropical species distributed across more than ten clades.
Mariela Nuñez-Florentin   +2 more
semanticscholar   +4 more sources

Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China

Phytotaxa, 2020
A new species, Dimetia brevipetiolata R. J. Wang, from Guangxi Zhuang Autonomous Region, China, is described and photographed. Morphologically, it is similar to D. scandens and D.
Ying Zhang   +2 more
semanticscholar   +2 more sources

Studies in the tribe Spermacoceae (Rubiaceae-Rubioideae): the circumscriptions of Amphiasma and Pentanopsis and the affinities of Phylohydrax

Plant Systematics and Evolution, 2004
Phylogenetic analysis of rbcL cpDNA sequences for 34 members of the tribe Spermacoceae s. lat. indicates that the African genera Amphiasma, Conostomium, Manostachya, Pentanopsis and Phylohydrax form a strongly supported clade, characterised by basal placentation and heterostyly.
Birgitta Bremer, Bremer B
exaly   +2 more sources

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