Results 81 to 90 of about 5,803 (221)

Cantua dendritica (Polemoniaceae), a New Species from Peru, and Two New Cantua Names [PDF]

open access: yes, 2008
Cantua dendritica is described as new. This species is apparently restricted to the region around Paucartambo, Department of Cusco, Peru. Related to, and frequently identified as, Cantua flexuosa, this new species differs in its glandular calyx, highly ...
Porter, J. Mark, Prather, L. Alan
core   +3 more sources

Taxonomic insights into Indian Rotala (Lythraceae) species with verticillate phyllotaxy

open access: yesNordic Journal of Botany, Volume 2026, Issue 5, May 2026.
In an effort to resolve taxonomic complexities among Indian Rotala species with verticillate phyllotaxy, this study provides an identification key, revised nomenclature, updated morphological descriptions including SEM studies of seed coat surfaces, detailed photoplates, and notes on phenology, ecology, and distribution.
Arikrishnan Parthiban   +2 more
wiley   +1 more source

MICROMORPHOLOGY, ANATOMY AND ULTRASTRUCTURE OF NECTARIES IN TWO TYPES OF FLOWERS OFCitrus limonCV. ‘PONDEROSA’

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2016
Trees of the genus Citrus can bloom all year round and are an abundant source of nectar for honey bees. Nectar production largely depends on nectary structure.
Agata Konarska   +1 more
doaj  

Uncovering the Arabidopsis thaliana nectary transcriptome: investigation of differential gene expression in floral nectariferous tissues

open access: yesBMC Plant Biology, 2009
Background Many flowering plants attract pollinators by offering a reward of floral nectar. Remarkably, the molecular events involved in the development of nectaries, the organs that produce nectar, as well as the synthesis and secretion of nectar itself,
Xu Wayne W, Kram Brian W, Carter Clay J
doaj   +1 more source

Sugar provisioning increases parasitoid numbers in agroecosystems but may not reduce pest densities: A meta‐analysis

open access: yesJournal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our findings demonstrate that providing sugar sources reliably supports parasitoid populations and parasitism rate but does not systematically translate into improved pest suppression or yield gains. These results suggest that, for economic and practical reasons, sugar inputs at the edge of cultivated fields should be favoured.
Martin Luquet   +3 more
wiley   +1 more source

Comparison of features of the epidermis and the size of the floral nectary in four species of the genus Cotoneaster Med.

open access: yesActa Agrobotanica, 2012
The investigations involved four species of the Cotoneaster genus: C. divaricatus, C. horizontalis, C. lucidus, C. praecox, which are commonly grown for decorative purposes.
Mirosława Chwil   +1 more
doaj   +1 more source

Diversity and evolution of a trait mediating ant-plant interactions: insights from extrafloral nectaries in Senna (Leguminosae) [PDF]

open access: yes, 2017
Background and Aims Plants display a wide range of traits that allow them to use animals for vital tasks. To attract and reward aggressive ants that protect developing leaves and flowers from consumers, many plants bear extrafloral nectaries (EFNs). EFNs
Bronstein, Judith L.   +4 more
core  

Osmophores and floral fragrance in Anacardium humile and Mangifera indica (Anacardiaceae): an overlooked secretory structure in Sapindales [PDF]

open access: yes, 2018
Background and aims: Flowers of Anacardiaceae and other Sapindales typically produce nectar, but scent, often associated with a reward for pollinators, has surprisingly been mentioned only rarely for members of the family and order.
Bachelier, Julien B.   +5 more
core   +1 more source

Nectary Specification in Petunia and Arabidopsis [PDF]

open access: yesThe Plant Cell, 2018
Studies of flower development have lots of information about petals, carpels, and stamens, but let’s not forget the birds and the bees—and the flies and moths—and what draws pollinators to insect-pollinated flowers, including flower color, shape, and rewards that provide energy. For example,
openaire   +2 more sources

Structure of floral nectaries, nectar production and sugar composition in nectar of 7 species of Vicia L. Fabaceae

open access: yesActa Agrobotanica, 2013
Nectaries of investigated species of Vicia were ranked into 3 morphological types: automorphic (V. sepium L.), transitoric (V. angustifolia L., V. sativa L., V. villosa Roth, V. cracca L.) and flat, epimorphic (V. hirsuta (L.) S. F.
Małgorzata Stpiczyńska, Jacek Pielecki
doaj   +1 more source

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