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The Annals of Botany Office is based at the University of Oxford.
Close Encounters
Floral polymorphism and environmental heterogeneity Polymorphism in flower colour may be maintained either by pollinator preferences or by environmental fluctuations. Tang and Huan examine gynoecium colour
Growth & Development
Floral synorganisation without fusion in Geranium Flowers of Geranium robertianum (Geraniaceae) are salverform with five separate accesses for pollinators to the nectar. Endress shows that each
Cells, Genes & Molecules
Stem lignification and resulting reduced digestibility of forage grasses is thought to be associated with the transition of apices to the reproductive stage. Seppänen et al.
Cells, Genes & Molecules
Microarray-analysis for components of salinity-stress tolerance Thiourea has been demonstrated to impart salinity-stress tolerance to seedlings of mustard, Brassica juncea. Srivastava et al.
Taxonomy & Evolution
Nickel hyperaccumulation and systematics of Alysseae Nickel (Ni) hyperaccumulation is a rare form of physiological specialization shared by a small number of angiosperms growing on ultramafic
Ecosystems
Pollen viability in Mediterranean orchids Evaluation of pollen viability has generally been confined to a relatively low number of species. Bellusci et al. study five related
Cells, Genes & Molecules
Genetic relationships between sympatric and allopatric Casearia Casearia sylvestris var. sylvestris inhabits humid, dense forests, while var. lingua is restricted to xeric habitats, yet despite differences
Cells, Genes & Molecules
Tetrad shape and aperture pattern ontogeny in pollen Patterns of male cytokinesis are suspected to play a role in the diversity of aperture patterns found in
Taxonomy & Evolution
Evolution of mycoheterotrophy from mixotrophic ancestors Nutritional changes associated with the evolution of achlorophyllous, mycoheterotrophic plants have not been inferred within a robust phylogenetic framework. Motomura
Growth & Development
Evolution of long scapes in Drosera Conventional wisdom is that long scapes in insectivorous plants have evolved to provide spatial separation between flowers and traps, preventing
Taxonomy & Evolution
Mixed mating and colonization potential of a fern Environmental change leads to increasing selection pressure on the capacity of plants to colonize new areas. Wubs et
Ecosystems
Plant resource-use strategies and phenotypic plasticity In subalpine grasslands, where a large diversity of habitats can occur over short distances, differing resource-use strategies will