Table of Contents

Further investigations on the (mainly non-native) vascular flora in the Iberian Peninsula, especially between 2008 and 2010, yielded, once again, numerous chorological novelties. Acanthostyles buniifolius and Sphagneticola trilobata are probably reported for the first time in Europe._ Boltonia asteroides_, Cardamine flexuosa subsp. debilis, Oenothera lindheimeri and Sisyrinchium rosulatum are new for the Iberian Peninsula, while Eragrostis mexicana and Symphyotrichum laeve were recorded for the first time in Portugal. Finally, new provincial records include Bothriochloa barbinodis (Huelva), Camelina microcarpa (Huelva), Cyclospermum leptophyllum (Huelva), Cyperus esculentus (Alto Alentejo), Ehrharta erecta (Algarve), Eleocharis flavescens (Baixo Alentejo), Eragrostis curvula (Alto Alentejo), Kochia scoparia (Huelva), Linaria maroccana (Huelva), Oenothera affinis (Huelva), O. indecora (Huelva), Pteris vittata (Lisbon), Rorippa palustris (Huelva), Setaria verticilliformis (Huelva), Veronica peregrina (Huelva) and Viola tricolor (Huelva). The presence in Spain of Consolida regalis is confirmed and Stenotaphrum secundatum is reported as an aggressive environmental weed in several natural areas in Huelva.

In this article charophytes are reported from the island of Crete, the largest island in Greece. On 9 visited localities, charophytes have been found in six. All localities, except one (loc. 6) are freshwater. Totally six different species were found: Chara aspera, C. connivens, C. corfuensis, C. vulgaris, Nitella hyalina and N. tenuissima. The most interesting locality is Lake Kournas which is an eutrophic Chara-lake with rich vegetation of four species: Chara corfuensis, C. aspera and the two species of _Nitella.

Algeria is the North African country with the largest number of alien weed species. The analysis of Oranie’s weed flora showed 29 species of alien species which represents 1.62% from the 1,780 species of the whole spontaneous flora of the oranian phytogeographic territory and 6.82% of the local weed flora. Almost 40% of these species were native to the American continent and about 45% came from several tropical regions. The most representative life-history traits of these alien species compared to native ones were: annual cycle (79% versus 76%), summer germination (83% versus 15%), non-specialized dissemination strategies, but related with anthropic activities (72% versus 47%), self-pollination (75%), and the high proportion of C4 species (45% versus 4%). The agricultural biotopes mainly affected are summer-irrigated crops with short rotation and important nitrogenous fertilizers assignment. There are very few such habitats in Oranie, and few summer annuals in Algeria’s flora. The success of alien weeds seems to result from suitability between environmental conditions of a newly created habitat (summer temperature, humidity, important nitrogen rate, frequent perturbations, short rotations, and ecological niches available) and species characteristics (annual type, summer germination, photosynthetic pathway in C4). Dispersal strategy and fecundation types seemed not to be of much importance to characterize these alien species.

Three keys to 44 species belonging to the family Convolvulaceae in the flora of Egypt are prepared to facilitate the identification of those species, based on 72 characters. These keys were constructed using the DELTA key-generating programs. The first key was built using all characters and the second key was built using 56 characters (vegetative, floral and fruit characters). The first key is considered as main key and can be confirmed by the second key in the field. The third one was built using 16 characters (pollen grains, seed and cell wall characters) which are to be used to identify and confirm the specimen in the laboratory

Taxonomical changes in the genus Limonium (Plumbaginaceae) are given for taxa from NAfrica and Tenerife (Canary islands). 7 new combinations and 5 lectotype designations are presented.

It is presented the vascular flora of Conero Regional Park. The paper starts with a brief presentation of the park territory (geography, geomorphology and bioclimate) that arises in the central Adriatic side of the Italian peninsula. The vegetation is briefly described thanks to the detailed phytosociological analysis carried out in the territory and to detailed maps on different scales. The description of vegetation allows indicating, for most of the species listed, their participation in the plant communities present in the area. The floristic list comprises 1169 entities, of specific and sub specific levels, that belong to 101 families and 507 genera. It also includes 64 species currently disappeared or not recently found in the study area, indicated by NP acronym (not present). The life form spectrum of the flora highlines the prevalence of terophytes (37.8%) and hemicryptophytes (31.10%). These are followed by geophytes (11.9%) and phanerophytes (10.6%). The chorological spectrum highlines the prevalence of Mediterranenan species among which the Eurimediterranean are very frequent (26%) but also the Stenomediterraneans form a considerable contingent (13% ), confirming that the area is on the northern limit of diffusion of Mediterranenan macrobioclime in the Italian Adriatic side. The total value of Euroasiatic species is very high (29%) and they are linked to the paleogeographyc history of Italian peninsula flora. Moreover, the presence of a large number of spe...

The phytosociological role of taxa of Genista sect. Voglera in the vegetation context of Sicily is here examined. It was carried out on plant communities characterised by the Sicilian endemics G. aristata, G. madoniensis and G. cupanii. These taxa and their floristic settlement have been examined from the biogeographical point of view. Basing on our results, the populations of G. madoniensis are to be referred to a new association named Cisto salvifolii-Genistetum madoniensis, ascribed to the class Cisto-Lavanduletea. Multivariate analysis shows a clear ecological differentiation of G. madoniensis with respect to the other Sicilian species. Instead, its habitus and ecology are closer to some spiny Genista of the Iberian Peninsula.

Zantedeschia aethiopica (L.) Spreng. (Araceae), originating from S Africa, was found naturalized in many sites of the Kroumiria region (Northwest of Tunisia). This report represents the first record for the Tunisian flora. Distribution and ecological notes are also given.

Ellenberg’s indicator values are an useful tool to delineate the relationship between plants and environment, recognising to each species a functional role as biological indicator. In the frame of the second edition of the Pignatti’s “Flora d’Italia”, some new informative systems are under preparations, in order to support geobotanical/applied studies, including a complete and updated review of the Ellenberg’s indicator values for the whole bulk of species mentioned in the flora of Italy. This first contribution includes a list of 380 species of Pteridophyta, Gymnospermae and Monocotiledoneae that complete the first assignment of the Ellenberg’s indicator values to the flora of Italy, published in 2005. Besides, some methodological considerations on the attribution and the use of Ellenberg’s indicator values are reported.

This is the twenty-two of a series of reports of chromosomes numbers from Mediterranean area, peri-Alpine communities and the Atlantic Islands, in English or French language. It comprises contributions on 15 taxa: Cakile, Chrithmum, Dorycnium, Inula, Reichardia and Pancratium from Greece by E. Liveri, P. Bareka & G. Kamari (Nos 1753-1758); Pimpinella from Turkey by Ç. Kızılarslan & E. Akalın (Nos 1759-1760); Anagyris from Italy, Sardinia, Sicily, Spain, Balearic Islands, Greece, Crete, East Aegean Islands, Asiatic Turkey and Canary Islands by T. Cusma Velari, L. Feoli Chiapella, V. Kosovel & L. Pellizzari (Nos 1761-1762); Chenopodium and Suaeda from Bulgaria by N. Grozeva (Nos 1763-1767).