Results 31 to 40 of about 6,037 (213)

Floristic composition and phytophysiognomies of Cerrado disjunct remnants in Campos Gerais, PR, Brazil - Southern boundary of the biome [PDF]

open access: yes
O cerrado possui seu limite austral de ocorrência nos Campos Gerais do Paraná onde, na forma de pequenos fragmentos disjuntos, tem grande afinidade com as formações savânicas de São Paulo e do Planalto Central do Brasil.
MORO, Rosemeri Segecin   +2 more
core   +1 more source

Alternative Approaches and Plant‐Based Remedies for Livestock Health Management Among the Batswana of Southern Africa: A Review

open access: yesChemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT Due to limited access to, and the high cost of conventional veterinary services, Batswana communities often rely on ethnoveterinary practices for livestock health management. This review provides an in‐depth analysis on the ethnoveterinary uses, biological properties and safety assessment of plants utilised in livestock husbandry. A systematic
Tswelelopele G. Mpolokeng   +7 more
wiley   +1 more source

INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]

open access: yes, 2016
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core   +1 more source

A First Quantification of Plant Endemism in the Manica Highlands (Zimbabwe–Mozambique) and the Significance of Open Habitats

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We present here the first quantitative assessment of plant endemics from the Manica Highlands (Zimbabwe‐Mozambique), totalling 216 taxa, representing over 9% of the estimated total flora. A major finding is that 173 (80%) endemic taxa are principally or entirely confined to open montane habitats such as grassland, bare rock, crags and scrub or dwarf ...
Jonathan Timberlake, Vincent Ralph Clark
wiley   +1 more source

Bioensaios de atividade alelopática dos esteroides espinasterol, espinasterona e glicopiranosil espinasterol. [PDF]

open access: yes, 2015
Três esteroides (espinasterol, espinasterona e glicopiranosil espinasterol) foram isolados do caule de Moutabea guianensis, planta de origem amazônica.
ARRUDA, M. S. P.   +5 more
core  

Contribution to the knowledge of the flora of Murščak (near Čakovec) [PDF]

open access: yes, 2009
Tijekom vegetacijske sezone 2007. i 2008. godine istraživana je flora Murščaka pokraj Čakovca. Zabilježeno je 300 svojti vaskularnih biljaka. Analizom flornih elemenata utvrđeno je 14 glavnih skupina flornih elemenata: euroazijski (36%), široko ...
Podvezanec, Monika
core  

DNA Barcoding of Polygalaceae

open access: yesErzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
Polygalaceae is a large family with a cosmopolitan distribution, comprising ca. 1,200 species in 27 genera. However, similar to many plant groups, the identification of Polygalaceae species mostly depends on floral and fruit characteristics; therefore, DNA barcoding could easily warrant the corect identification of sterile material.
openaire   +2 more sources

Pollen of the restinga vegetation of Algodoal/Maiandeua, Pará, Brazil. III. Polygalaceae and Polygonaceae [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2010
This study deals on pollen morphology of Polygalaceae and Polygonaceae in the Algodoal/Maiandeua island (coast of ParáState, Brazil), represented, respectively, by the species Polygala adenophora DC., P. monticola Kunth, P. spectabilis DC.,P.
Flávia Cristina Araújo Lucas   +3 more
doaj  

O gênero Monnina (Polygalaceae) na Região Sul do Brasil The genus Monnina (Polygalaceae) in Southern Brazil

open access: yesActa Botânica Brasílica, 2009
O trabalho trata do estudo taxonômico do gênero Monnina na Região Sul do Brasil. A metodologia apresentou uma revisão bibliográfica e de herbários nacionais e internacionais, coletas nos Estados do Paraná, Santa Catarina e Rio Grande do Sul, bem como ...
Raquel Lüdtke   +2 more
doaj   +1 more source

Temperature and the evolution of flower color: A review

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Flower colors brighten our natural world. How and why have they evolved? How might ongoing global warming alter their evolutionary trajectories? In this review, I examine the influence of ambient temperature on the evolution of flower color.
Elizabeth P. Lacey
wiley   +1 more source

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