Search results for "Botanica"
showing 10 items of 1665 documents
Land forms, land-use and landscapes in Sicily
2009
Landscape as we perceive it is the product of many different interacting factors: macro- and topoclimate, lithology, geomorphology, land use and human activities. The evaluation of the relative influence of each one of these factors on vegetation pattern and landscape is strongly dependent from the scale of observation. Hierarchical classification (Blasi et al. 2000) makes scale-related use of these factors as diagnostic attributes: macroclimate (over 1:250,000 scale) defines landscape regions, lithology (1:250,000 scale) defines systems and lithomorphology (1:50,000 scale) defines subsystems. At a finer scale (less than 1:10,000), land forms and land-use are the predominant landscape maker…
PROTECTING BIODIVERSITY ON PRIVATE PROPERTY: AN EXPERIENCE IN CORLEONE (SICILY)
2017
Bona Furtuna is an organic farm located 8 km far from Corleone closed to Campofiorito (Palermo). The study area includes the slopes of Castro, Giardinello and Valle Fredda which goes up to Barraù Mt. included in the Special Areas of Conservation (ITA020037) according to the Natura 2000 European Birds and Habitat Directives. The high level of biodiversity is supported by over 502 taxa of vascular flora, 38 of which are endemic to Sicily. The study area is quite diversified from a bioclimatic point of view as well, presenting different gradients from the Lower Mesomediterranean (Upper dry) and the Lower Supramediterranean (Lower subhumid). The landscape has been shaped by frequent changes in …
Zemes mākslīgo pavadoņu novērošanas stacijas dežūru žurnāls Nr. 1, 1957–1958
2023
Raksts tapis par PSRS izgudrotu Zemes mākslīgo pavadoņu novērošanas stacijas dežūru žurnālu, kur uzskaitītas iesaistītās personas - pasniedzēji, zinātniskie asistenti un studenti no Pētera Stučkas Latvijas Valsts universitātes (LVU) Fizikas un matemātikas fakultātes. Novērošanas stacija atradās LVU Botāniskajā dārzā, kur bija iespējams veikt astronomiskos novērojumus. Lai kādas bija ieceres novērošanas stacijas attīstībai, studentu interese noplaka interešu trūkuma dēļ. Zemes mākslīgo pavadoņu novērošanas stacijas dežūru žurnāls Nr. 1, 1957–1958 pievienots atsevišķā datnē.
Latvijas Universitātes Botāniskais dārzs, 80
2002
Teksts paralēli latviešu un angļu valodā
Essential oil of Cyphostemma juttae (Vitaceae): Chemical composition and antitumor mechanism in triple negative breast cancer cells
2019
The genus Cyphostemma (Planch.) Alston (Vitaceae) includes about 150 species distrib- uted in eastern and southern Africa and Madagascar. Some species are used in traditional medicine and their biological activities, including antiproliferative effects against cancer cell lines, have been demonstrated. To date no investigations on Cyphostemma essential oils have been carried out. Essential oils, which play important roles in plant defenses have been demonstrated to be active in the treatment of several human diseases and to enhance bioavability of other drugs. The aim of this paper was to identify the chemical composition of the essential oil of the leaves of Cyphostemma juttae (Dinter &…
The Acharius Medals 2014 awarded to P.L. Nimis and P. Crittenden
2014
The Acharius Medal rewards distinguished lichenologists in recognition of their life work with a silver medal in honour of Erik Acharius, the “father of Lichenology” was awarded to P.L. Nimis and P. Crittenden during the 10th International Mycological Congress held in Bangkok (Thailand).
Lichenological studies in Sicily: a thorough biblography (1692-2020)
2020
A bibliography on lichens in Sicily has been compiled and is here provided, as a comprehensive source to facilitate further studies focused on the regional territory. We checked the available literature from 1692 to 2020. We listed alphabetically a selection of 397 key publications and provided some comments on their distribution in time and space, and on the main studied topics. The complete reference list is freely available online.
Aphyllophoraceous wood-inhabiting fungi on Quercus spp. in Italy
2008
240 species representing 100 genera of aphyllophoraceous fungi growing on Quercus spp. in Italy are listed. Some species are considered rare or infrequent in Italy, e.g. Bulbillomyces farinosus, Dendrothele dryina, Fomitopsis iberica, F. spraguei, Hyphoderma incrustatum, Inonotus andersonii.
Allium albanicum (Amaryllidaceae), a new species from Balkans and its relationships with A. meteoricum Heldr. & Hausskn. ex Halácsy
2019
A new species, Alliumalbanicum, is described and illustrated from Albania (Balkan Peninsula). It grows on serpentines or limestone in open rocky stands with a scattered distribution, mainly in mountain locations. Previously, the populations of this geophyte were attributed to A.meteoricum Heldr. & Hausskn. ex Halácsy, described from a few localities of North and Central Greece. These two species indeed show close relationships, chiefly regarding some features of the spathe valves, inflorescence and floral parts. They also share the same diploid chromosome number 2n =16 and similar karyotype, while seed testa micro-sculptures and leaf anatomy reveal remarkable differences. There are …
Typification of the name Papaver hybridum L. (Papaveraceae)
2011
The typification of the Linnaean name Papaver hybridum is discussed. A specimen in the Burser Herbarium at Uppsala is designated as lectotype.