Search results for "Flore"

The architecture ofMourera fluviatilis(Podostemaceae): developmental morphology of inflorescences, flowers, and seedlings

1999

Mourera fluviatilis from northern South America is a spectacular member of the Podostemaceae (river-weeds). Its racemelike inflorescences are up to 64 cm long and have 40‐90 flowers arranged in two opposite rows. Inflorescence development starts with the initiation of a double-sheathed (dithecous) bract in a terminal position. All lateral bracts (again dithecous) are initiated in basipetal order along the two flanks of the inflorescence. Each gap between two neighboring bracts contains a single flower. The flowers are bisexual, each with a whorl of 16‐20 ligulate tepals and 14‐40 stamens, which are arranged in one or two whorls. Floral development starts with the formation of a girdling pri…

Floral and Vegetative Morphogenesis in California Poppy (Eschscholzia californicaCham.)

2005

For studies of the evolution of development in angiosperms, early‐diverging eudicot taxa are of particular interest for comparisons with established core eudicot model plants, such as Arabidopsis. Here we provide a detailed description of shoot and floral development of the basal eudicot California poppy (Eschscholzia californica). Rosette formation in the vegetative phase is accompanied by increased leaf complexity and shoot apex size. The flowering phase is characterized by internode elongation, formation of dissected cauline leaves, terminal flowers, and basipetal inflorescence branching. For developing flowers and fruits, we have defined 14 stages according to important landmark events,…

Effects of tetraploidy on olive floral and fruit biology

2014

Floral biology and fruit development were studied in Leccino Compact (LC), a polyploid olive mutant of cultivar Leccino (L). This mutant, considered a mixoploid with both diploid and tetraploid cells, has thicker leaves and fruit size similar to the diploid cultivar. So far, no information is available on its floral biology. In this study, the ploidy level of the LC fruit epicarp, analyzed by flow cytometry, was determined to be tetraploid. Pollen size distribution confirmed that most flowers were tetraploid. Morphological and histological measurements of various floral structures and fruits were carried out on the two genotypes, and LC showed larger floral structures (i.e. rachis, flower a…

Flowers and inflorescences of the seagrassPosidonia(Posidoniaceae, Alismatales)

2012

Premise of the study: The predominantly aquatic order Alismatales displays a highly variable fl ower groundplan associated with a diverse range of developmental patterns. We present the fi rst detailed description of fl ower anatomy and development in Posidonia , the sole genus of the seagrass family Posidoniaceae. Existing accounts provide confl icting interpretations of fl oral and infl orescence structure, so this investigation is important in clarifying morphological evolution within this early-divergent monocot order. • Methods: We investigated two species of Posidonia using light microscopy and scanning electron microscopy. Our observations are interpreted in the framework of a recent…

Terranovam natale meum solum : remarks on the textual history of Poggio Bracciolini’s Historiae Florentini populi

2007

Poggio Bracciolini’s last work, the Historiae Florentini populi, was edited and dedicated to Federico di Montefeltro by Jacopo di Poggio in 1472. Jacopo also translated the work into the volgare and had it printed in Venice in 1476. In the light of the manuscript tradition, Jacopo’s editorial changes were more considerable than has hitherto been thought. The propagation of his edition and translation would seem to be intimately connected with his political aspirations ending in his unfortunate participation in the Pazzi conspiracy of 1478. peerReviewed

Evil lords, benign historians: strongman politics in medieval India and Renaissance Florence

2019

Recent developments in Europe and the United States (US) attest to an increasing fascination with and nostalgia for the strong leaders of the past – especially those that emerged in the aftermath o...

Religious thought and experience in the prison camps

2020

The development of religious thought has often been marked by discord and conflicts be tween religions (and/or individual religious thinkers) and the State, which at times led to the repression of individuals and or groups of people united by the same confession. The Russian case is fully in line with this unfortunate tradition: from Nikon’s schism to the re pression against all religions under the Soviet regime, Russian religious thought has of ten developed in repressive conditions. However, the Russian case has one distinguishing feature, that is, the extensive use of prison camps by Russian and Soviet authorities from the nineteenth century onwards, which has had a direct effect on some…

Propagation techniques for Iberis semperflorens L.

2009

Iberis semperflorens L. an attractive Italian endemic shrub with high potential as flowering potted plant

2009

High Temperatures Result in Smaller Nurseries which Lower Reproduction of Pollinators and Parasites in a Brood Site Pollination Mutualism

2014

In a nursery pollination mutualism, we asked whether environmental factors affected reproduction of mutualistic pollinators, non-mutualistic parasites and seed production via seasonal changes in plant traits such as inflorescence size and within-tree reproductive phenology. We examined seasonal variation in reproduction in Ficus racemosa community members that utilise enclosed inflorescences called syconia as nurseries. Temperature, relative humidity and rainfall defined four seasons: winter; hot days, cold nights; summer and wet seasons. Syconium volumes were highest in winter and lowest in summer, and affected syconium contents positively across all seasons. Greater transpiration from the…