annals-of-botany
Cracking the omega code: hydraulic architecture of the cycad leaf axis
The ancient order Cycadales (“cycads”), have a pattern of vascular bundles in the leaf axis, seen in transverse section as an inverted “omega”. In the genus
annals-of-botany
Inflorescence arrangement and nursery pollinator occupancy
Nursery pollination systems are excellent biological models to study how obligated plant-insect mutualisms function and have evolved. Jácome-Flores et al. investigated whether and how
annals-of-botany
Traits control the digestibility-decomposition relationship
Fibre concentration and dry matter content can be considered as good predictors of both digestibility and decomposability.
annals-of-botany
Thermal acclimation of photosynthesis and dark respiration in white spruce
The results showed moderate thermal acclimation of respiration and no evidence for thermal acclimation of photosynthesis or local genetic adaptation for traits related to thermal acclimation.
annals-of-botany
Early Palaeocene fossil flowers of Patagonia
Sixty-four million years ago, this elaborate flower grew in Patagonia, Argentina. The new species described by Jud et al. is named Lacinipetalum spectabilis Jud, Gandolfo,
annals-of-botany
The development of Ramularia leaf spot disease in barley
The fungus Ramularia collo-cygni (Ascomycotina) has recently become an important pathogen of barley (Hordeum vulgare), causing leaf spotting on upper leaves. McGrann and Brown studied
annals-of-botany
Photoinhibition of seed germination in Lilioids
The results show the relative importance of the different factors that may be involved in explaining the occurrence of photoinhibition in Lilioid monocots.
annals-of-botany
Origins and domestication of the olive
The olive, Olea europaea (Oleaceae), is an iconic species in Mediterranean agriculture yet its origin is complex. Besnard et al. review the literature on the timeline
annals-of-botany
The enigma of sex allocation in Selaginella
The enigmatic variation in sex allocation within and among Selaginella species, and differences from the angiosperms, are interesting aspects of land plant biology in their own right, but will also provide useful empirical models for probing the theory of sex allocation.
annals-of-botany
Grass florets bet-hedge against unpredictable rainfall in arid landscapes
Seed germination in the arid zone is a high-risk event. For grasses specifically, the ancillary bracts of the floret surrounding the seed have been associated
annals-of-botany
Importance of clonal reproduction in a liana species, Wisteria floribunda
Clonal reproduction is a common and important life history strategy in lianas. Mori et al. investigate clonal structure in a temperate deciduous liana species, Wisteria floribunda
annals-of-botany
Dynamic mechanical tissue in the fern Asplenium rutifolium
The collenchymatous tissue in A. rutifolium petioles structurally resembles sclerenchyma, while in biomechanical performance and glycan composition it shares more characteristics with angiosperm collenchyma.