Search results for "Flore"
showing 10 items of 153 documents
3D Map Computation from Historical Stereo Photographs of Florence
2018
The analysis of early photographic sources is fundamental for documenting and understanding the evolution of a city so rich in history and art as Florence. Indeed, by the 1860s several photographers used to work in town, and their images (often obtained through stereoscopic set-ups) can help us to reconstruct Florence in 3D as it was by the time of the Italian unification. The first and most delicate part of such reconstruction process is the computation of disparity maps from the historical stereo pairs. This is a very challenging task for fully-automatic computer vision algorithms, since XIX century photographs are affected by several problems—ranging from superficial damages to asynchron…
Il corallo trapanese nel collezionismo di ieri e di oggi: una raccolta di arte sacra tra Seicento e Settecento alla XXXI Biennale dell’Antiquariato
2020
The collection of works in Trapanese coral exhibited at the XXXI International Biennial of Antiques in Florence demonstrates show such production was characterized by a consistently high cultural level and refined artistic knowledge. Whereas from the 16th Century onwards the main players in this trend were sovereigns, nobles and high prelates, between the second half of the 19th and the beginning of the 20th Century, antique dealers and wealthy private individuals became the main players, as they were attracted, like their predecessors, by the exquisite beauty of Trapanese coral artifacts, which still commands high prices in the art market. The article proposes a scientific study of the wor…
Forma e differenza. Sulla morfologia di Pavel Florenskij
2022
The essay aims to investigate the main concepts of Florensky's morphology in the light of his ontology of difference.
Innovazione e resilienza nella città intelligente. Pratiche fiorentine al tempo della pandemia
2021
La pandemia ha dato l’opportunità ad alcune città di dimostrare il grado di competitività raggiunto e di divenire un modello di riferimento. In questi contesti non ha prevalso l’immobilismo o la sterile attesa, ma una fervente attività propositiva e creativa. Il presente contributo si propone di approfondire solo una delle esperienze di creatività e di azione all’interno di una città certamente smart, Firenze. Il caso della Galleria degli Uffizi dimostra la capacità dei contesti ad elevato livello tecnologico e di competenze di superare con brillantezza le situazioni critiche che, nella loro diversificata configurazione, possono presentarsi. The pandemic has given some cities the opportunit…
Silene crassiuscula (Caryophyllaceae), a new species from Sicily
2015
Silene crassiuscula,, a new species of S. sect. Dipterosperma, is described and illustrated from North-Western Sicily. It is an annual halophyte with succulent growing on carbonatic or calcarenitic rocks of coastal stands. From the morphological point of view , S. crassiuscula appears to be similar to the species belonging to the S. colorata group especially to S. nummica, from Sardinia, from which it differs in several features chiefly regarding the habit, leaves, inflorescences, floral pieces and seed micro-morphology. An analytical key of the taxa belonging to this section is also provided.
Unisexual flowers as a robust synapomorphy in Cariceae (Cyperaceae)? Evidence for bisexual flowers in Schoenoxiphium
2012
Abstract Cariceae, the largest tribe within Cyperaceae, comprises about 2000 species in five genera. Cariceae is usually considered to be distinct from other Cyperaceae by the presence of exclusively unisexual flowers and by the arrangement of the pistillate flowers in single-flowered spikelets that are enclosed by the flask-like spikelet prophyll (utricle or perigynium). The nature of several morphological features of the Cariceae inflorescence remains controversial. The staminate reproductive units, as well as earlier reported bisexual reproductive units in Schoenoxiphium have been considered to be reduced partial inflorescences, or flowers. Aims of this study are to test both interpretat…
A new species of Agrostis (Gramineae) in the A. alpina complex
2000
Abstract A new species of Agrostis L. ( A. barceloi ) is described from the northern mountains of Mallorca (Balearic Islands). The new taxon belongs to sect. Agrostis and is mainly related to A. alpina Scop. and A. schleicheri Jord. & Verl. on morphological grounds. However, A. barceloi differs from A. alpina by its narrowly-lanceolate inflorescence, with panicle branches erect during and after anthesis, non-scabrid leaves, and by smaller lemmas and others. The new species is distinguished from A. schleicheri by the smaller spikelets, lemma, palea, and anthers. In addition, A. barceloi is tetraploid (2 n =28), and differs cytologically from the diploid A. alpina (2 n =14) and the hexaploid …
Functional implications of the staminal lever mechanism in Salvia cyclostegia (Lamiaceae)
2011
Flower morphology and inflorescence architecture affect pollinator foraging behaviour and thereby influence the process of pollination and the reproductive success of plants. This study explored possible ecological functions of the lever-like stamens and the floral design in Salvia cyclostegia.Flower construction was experimentally manipulated by removing either the lower lever arms or the upper fertile thecae of the two stamens from a flower. The two types of manipulated individuals were intermixed with the control ones and randomly distributed in the population.Removing the sterile lower lever arms significantly reduced handling time per flower of the main pollinator, Bombus personatus. I…
Infrastructure as Interface: Thinking the Urban and the High-speed Railway Station: Italian Case-studies
2013
The recent launching in Italy of a number of large scale urban operations centered around High Speed Railway (HSR) stations has added a wealth of examples and themes to the overall European picture; these go to make up a global point of reference for other countries that are, in this period, undertaking the construction of their own HSR networks. Above and beyond the territorial questions often linked to the issue, further research investigating the architectural aspect of these operations would be highly relevant, but is rather lacking. Instead, we shall be focusing on current HSR stations in Italy, such as Turin Porta Susa, Florence Belfiore and Rome Tiburtina, and comparing them briefly,…