Results 71 to 80 of about 1,473 (140)

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez   +7 more
wiley   +1 more source

Trimerous magnoliid flowers with a unique set of floral and pollen traits from the Late Cretaceous of Southern Bohemia (Czech Republic)

open access: yesNew Phytologist, Volume 251, Issue 4, Page 2266-2283, August 2026.
Morphospace position and phylogenetic placements of Trimeriantha monopolyada. Summary Floral structure is a key aspect of angiosperm diversity. Recent research revealed that significant floral disparity was already present in the Cretaceous. However, our understanding of early floral diversity remains limited, as it is directly dependent on the fossil ...
Xieting Wu   +7 more
wiley   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1223-1237, July 2026.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger   +4 more
wiley   +1 more source

Morfo-anatomia da flor de Ocotea puberula (Rich.) Nees (Lauraceae)

open access: yesActa Scientiarum: Biological Sciences, 2008
A flor de Ocotea puberula (Rich.) Nees foi estudada morfo-anatomicamente de plantas de floresta secundária de Maringá, Paraná, Brasil, uma região crítica com menos de 1% de cobertura vegetal.
Luiz Antonio Souza   +1 more
doaj   +1 more source

A Pilot Clinical Study of a Biomimetic Suction Patch for Improving Wrinkles, Elasticity, Hydration, and Pigmentation via Enhanced Topical Delivery

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 7, July 2026.
ABSTRACT Background Suction‐based bioinspired patches have emerged as noninvasive platforms for enhancing topical delivery; however, clinical validation of their multidimensional skin benefits remains limited. Aims This pilot study evaluated the clinical efficacy of a biomimetic suction‐type microstructured patch combined with a cosmetic ampule for ...
Seunghoon Choi   +9 more
wiley   +1 more source

Sertula Florae Colombiae, XII

open access: yesCaldasia, 1971
La Tribu Blakeae es, entre las Melastomatáceas americanas, el grupo de más facil reconocimiento. Se caracteriza por flores axilares cada una provista de dos pares de brácteas desusadas, y secundariamente por las flores casi siempre 6-meras con anteras ...
Uribe Uribe Lorenzo
doaj  

Digitised herbarium specimen data reveal a climate change‐related trend to an earlier, shorter Canadian Arctic flowering season, and phylogenetic signal in Arctic flowering times

open access: yesNew Phytologist, Volume 251, Issue 2, Page 696-706, July 2026.
Summary The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved.
Zoe A. Panchen   +3 more
wiley   +1 more source

Haplodiploid androgenetic breeding in oat: genotypic variation in anther size and microspore development stage Melhoramento por haplodiploidização androgenética: variação genotípica no tamanho das anteras e no estágio de desenvolvimento dos micrósporos em aveia

open access: yesScientia Agricola, 2009
Oat (Avena spp.) is poorly responsive to the haplodiploidization process, which leads to the production of homozygous lines in one step, increasing breeding efficiency.
Taniela De Cesaro   +7 more
doaj   +1 more source

Validation of AURA‐W: An AI‐Driven 3D Imaging System Metrics for Objective Wrinkle Assessment After Botulinum Toxin Treatment

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 6, June 2026.
ABSTRACT Background Most clinical assessments of botulinum toxin rely on subjective observation, limiting reproducibility. The Aura 3D Imaging System combines high‐resolution photogrammetry imaging with AI analysis to provide standardized wrinkle measurements.
Fabrizio Vignoli   +4 more
wiley   +1 more source

Antera: the challenges of entrepreneurial capital management

open access: yes, 2016
This case describes the challenges faced by a Private Equity and Venture Capital (PE&VC) manager, whose growth is driven by the increasing demand for seed capital in Brazil. It also addresses the consequent changes and adjustments that the domestic market requires from such investment model that, in spite of already having been validated ...
Campani, Carlos Heitor   +4 more
openaire   +1 more source

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