Search results for " Chorology"
showing 10 items of 12 documents
A taxonomic revision of the Capparis spinosa group (Capparaceae) from eastern Africa to Oceania
2015
The variability, autecology and distribution of the Capparis spinosa group have been studied in eastern Africa, Madagascar, southern Asia, Australia and Oceania. In these areas the taxonomic treatment of the group, also represented in holoarctic Regions of the Old World, is still critical. The forms widespread in the study area are here referred to four subspecies of C. spinosa . The recognized subspecies mostly show geographical vicariance, except in some contact areas of the Middle East and western Himalaya. Two nomenclatural novelties, i. e. C. spinosa subsp. cordifolia comb. et stat. nov. and C. spinosa subsp. himalayensis stat. nov., are proposed. Among the recognized taxa, C. spinosa …
Valantia deltoidea (Rubiaceae) sulle Madonie (Sicilia)
2011
Valantia deltoidea, a therophyte endemic to Sicily, so far known only from its locus classicus on the Rocca Busambra (Palermo, Province) has recently been found at the foot of the Serre di Quacella (Madonie, on dolomite rock, about 1300 m altitude. Besides outlines of taxonomical characteristics of such species, the data on the new locality and the updated distribution are provided here.
Prospero hierae (Hyacinthaceae), a New Species from Marettimo Island (Sicily)
2009
A new species, Prospero hierae C. Brullo, S. Brullo, Giusso, Pavone & Salmeri (Hyacinthaceae), from Island of Marettimo (Egadi Archipelago, Sicily) is described and illustrated. Its chromosome number (2n = 14), leaf anatomy and ecology are examined. This small species with glaucous, adaxially flat leaves is closely related with the taxa belonging to the Prospero autumnale group and, in particular, it shows more affinities with P. corsicum, P. pulchellum and P. minimum.
Floristic, phenological and chorological differences in the annual vegetation of Sardinia.
2007
The therophytic flora of Sardinia has been split into four main groups, basing on the ecologic requirements of species. The following groups have been recognized: flora of dry entisoils, flora of periodically swampy or submerged entisoils, flora of coastal sites, flora of fields, road edges and human settlements. Either, most frequent or exclusive species were ascribed to each group. A species was considered “exclusive” when its relative frequency outside a given group was estimated ≤10%. Differences have been highlighted within the groups, dealing with chorology, growth form, flowering time, colour of flowers, pollination and seed dispersal strategies.
New national and regional plant records: Contribution to the flora of the Old World countries
2023
is paper presents new data on the occurrence of 16 vascular plant species from five Eurasian countries obtained during field explorations, as well as during taxonomic revisions of herbarium materials. Five taxa (Draba fladnizensis, Gentiana orbicularis, Helianthus giganteus, Symphyotrichum cordifolium, alictrum alpinum) are recorded for the first time from Poland, five (Achnatherum jacquemontii, Arrhenatherum elatius, Dittrichia graveolens, Geranium pyrenaicum, Stipa × balkanabatica) from Tajikistan, three (Achnatherum sibiricum, Asyneuma thomsonii, Stipa × balkanabatica) from Kyrgyzstan, one (Orobanche bartlingii) from Turkey, one (Calamagrostis obtusata) from China and one (Calamagrosti…
First finding of Linaria vulgaris (Scrophulariaceae)in Sicily
2007
The occurrence of Linaria vulgaris is reported in Sicily. Such species is known in the Italian Peninsula. Populations of this species have been observed respectively on the Nebrodi Mountains (N Sicily) and in proximity to Aidone (C Sicily).
A new species of Silene sect. Dipterosperma (Caryophyllaceae) from Sicily
2012
Silene kemoniana, a new species of the section Dipterosperma from NW Sicily, is described and illustrated. It is a therophyte that occurs in mountains near Palermo, where it grows on Mesozoic limestones in xerophilous garigues. Its relationships with S. colorata and allied species are also examined. A key of the species belonging to sect. Dipterosperma is provided. Se describe e ilustra Silene kemoniana, una nueva especie del NW de Sicilia perteneciente a la sección Dipterosperma. Se trata de un terófito que habita en algunas montañas próximas a Palermo, donde crece sobre calizas mesozoicas entre matorrales mediterráneos xerófilos. Se estudian sus relaciones con S. colorata y otras especies…
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.
Noves dades per a la flora valenciana
2014
Es dóna notícia de la troballa d’algunes localitats noves de plantes amb valor corològic per a la flora dela Comunitat Valenciana, destacant Armeria trachyphylla Lange com a novetat per a la flora valenciana.Mots clau: Comunitat Valenciana, corologia, Espanya, plantes vasculars.New data to the valencian flora.Data about some new localities of plants with chorological interest for the valencian flora are reported,highlighting Armeria trachyphylla Lange as a new species for the valencian list.
Poa jubata (Poaceae), a rare Balkan species, first record for the Italian flora
2019
Abstract Poa jubata A. Kern., an annual South-eastern European species, is reported for the first time from Italy. It is a therophyte linked to temporary ponds with soils flooded during the winter period. It is a very rare and enigmatic species, currently known only from a few localities of the Balkan Peninsula. Recently, it was surveyed in an Apulian wetland, near Brindisi, where it grows with several other annual hygrophytes. For its taxonomical isolation, it is included in a monospecific section, as P. sect. Jubatae. In addition to a detailed description, the chromo-some complement (2n = 14) of this species is examined for the first time and a new iconography is provided.