Results 51 to 60 of about 1,531 (191)
Phylogeography of a Tertiary relict plant, Meconopsis cambrica (Papaveraceae), implies the existence of northern refugia for a temperate herb [PDF]
, 2011 The perennial herb Meconopsis cambrica, a western European endemic, is the only European species of the otherwise Himalayan genus Meconopsis and has been interpreted as a Tertiary relict species.
Kadereit, Joachim W. +2 more
core +3 more sources
Steric Constraints as a Global Regulation of Growing Leaf Shape [PDF]
, 2009 Shape is one of the important characteristics for the structures observed in living organisms. Whereas biologists have proposed models where the shape is controlled on a molecular level [1], physicists, following Turing [2] and d'Arcy Thomson [3], have ...
Couturier, Etienne +2 more
core +5 more sources
Explosive Radiation of Malpighiales Supports a Mid-Cretaceous Origin of Modern Tropical Rain Forests [PDF]
, 2005 Fossil data have been interpreted as indicating that Late Cretaceous tropical forests were open and dry adapted and that modern closed-canopy rain forest did not originate until after the Cretaceous-Tertiary (K/T) boundary.
Davis, Charles +4 more
core +1 more source
BMC Genomics, 2020 Background Chrysosplenium L. (Saxifragaceae) is a genus of plants widely distributed in Northern Hemisphere and usually found in moist, shaded valleys and mountain slopes.
Zhihua Wu +6 more
doaj +1 more source
INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]
, 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
The Plant Genome, Volume 19, Issue 1, March 2026.Abstract Oxalis oulophora, a diploid species closely related to the octoploid Andean tuber crop oca (Oxalis tuberosa), was selected for whole‐genome sequencing to aid in understanding the origins of polyploidy and domestication in oca and its relatives (crop wild relatives).
Dilrini Vanrooyen, Eve Emshwiller
wiley +1 more source
Temperature and the evolution of flower color: A review
American 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
Molecules, 2017 Accurate taxonomic identification of plant materials in herbal medicines is important for product quality control. The genus Paeonia (Saxifragales) is the source of the herbal preparations Paeoniae Radix (Paeoniae Radix Alba and Paeoniae Radix Rubra) and
Wook Jin Kim +3 more
doaj +1 more source
Progress and problems in the assessment of flower morphology in higher-level systematics [PDF]
, 2018 Floral features used for characterization of higher-level angiosperm taxa (families, orders, and above) are assessed following a comparison of earlier (precladistic/premolecular) and current classifications.
Endress, Peter, Matthews, Merran
core
A Complete Generic Phylogeny of Malpighiaceae Inferred from Nucleotide Sequence Data and Morphology [PDF]
, 2010 Premise of the study: The Malpighiaceae include ∼1300 tropical flowering plant species in which generic definitions and intergeneric relationships have long been problematic.
Anderson, William R. +1 more
core +2 more sources