Table of Contents

The flora of a dam lake and twenty six ditches in the Karditsa Prefecture (Greece) is here reported: 98 taxa of marsh and water plants (1 charophyte, 2 bryophytes, 4 pteridophytes and 91 spermatophytes) were recorded. Eleven taxa (Agrostis stolonifera, Apium nodiflorum, Ceratophyllum demersum subsp. demersum, Cyperus longus, Lythrum salicaria, Mentha spicata, Paspalum paspalodes, Phragmites australis, Rumex conglomeratus, Typha domingensis, Veronica anagallis-aquatica) are the most frequent, inhabiting 21 (-22) ditches. Cardamine matthioli may be considered as new to Greece as no exact locality has been previously reported. 8 taxa (Aster squamatus, Azolla filiculoides, Lemna gibba, Nasturtium oficinale, Potamogeton graminrus, Ranunculus peltatus subsp. saniculifolius and R. sphaerospermus) are recorded as new to Thessalia. Ranunculus peltatus subsp. saniculifolius is also recorded as new for the Greek mainland. Comments are also given on some taxa, most of them having few previous records from Greece.

Two species, Seseli paphlagonicum and S. phrygium, are described and illustrated from Northern (Ilgaz Daği) and Central (Sakarya valley) Turkey, respectively. Both species belong to Seseli sect. Seseli. They are limestone chasmophytes. The differences and distribution in Turkey of the species of Seseli, closely related to S. gummiferum and S. petraeum, are discussed.

Floristic aspects of weed flora of the oranian phytogeographic territory (North-West Algeria) and persistency of rare and/or endemic species. The weed flora of irrigated or dry (rain) crops as well as fallows of the Oranian area counts 425 species belonging to 51 botanical families and 217 genera. This flora was studied during two cropping seasons, respectively from January to July 2006 than from March to June 2009. Three families, the Asteraceae, Fabaceae and Poaceae accounted for 39 % of the species. Annuals (76%) and mediterranean floristic elements (57.64 %) were predominant and characterized the weed flora. Finally, the authors have proposed the modification of the distribution and the abundance of 17 species within the "Nouvelle Flore de l’Algérie" of Quézel & Santa (1962-1963).

The Tuscan Maremma is a historical region of central western Italy of remarkable ecological and landscape value, with a surface of about 4.420 km2 largely corresponding to the province of Grosseto. A critical inventory of the native and naturalized vascular plant species growing in this territory is here presented, based on over twenty years of author's collections and study of relevant herbarium materials and literature. The checklist includes 2.056 species and subspecies (excluding orchid hybrids), of which, however, 49 should be excluded, 67 need confirmation and 15 have most probably desappeared during the last century. Considering the 1.925 confirmed taxa only, this area is home of about 25% of the Italian flora though representing only 1.5% of the national surface. The main phytogeographical features in terms of life-form distribution, chorological types, endemic species and taxa of particular conservation relevance are presented. Species not previously recorded from Tuscany are: Anthoxanthum ovatum Lag., Cardamine amporitana Sennen & Pau, Hieracium glaucinum Jord., H. maranzae (Murr & Zahn) Prain (H. neoplatyphyllum Gottschl.), H. murorum subsp. tenuiflorum (A.-T.) Schinz & R. Keller, H. vasconicum Martrin-Donos, Onobrychis arenaria (Kit.) DC., Typha domingensis (Pers.) Steud., Vicia loiseleurii (M. Bieb) Litv. and the exotic Oenothera speciosa Nutt.

Recent fieldwork and herbarium revisions have considerably improved the taxonomic knowledge of genera0_Cyperus_ and Eleocharis (Cyperaceae) in the Iberian Peninsula. In this paper new records are provided for Cyperus aggregatus (2nd record in the province of Huelva, Spain) and C. serotinus (first report from Andalucia). Cyperus croceus and C. retrorsus are reported for the first time from the Iberian Peninsula and, apparently, also from Europe. Previous Spanish records of Cyperus cyperoides turned out to be in error for C. retrorsus. Analogously, the name Cyperus bellus given as naturalized at the Laguna Chica in Moral de Calatrava (Spain) has to be changed to a still unidentiffied species of Cyperus. C. esculentus var. macrostachyus – a distinct American variety – is a naturalized weed of arable land in northeastern Spain. Finally, part of the collections of Eleocharis flavescens from the Iberian Peninsula are in fact proved to belong to E. caduca, a weed from the Old World tropics. Genuine Eleocharis flavescens is here confirmed from Baixo Alentejo (Portugal).

In this article charophytes are reported from the island of Evia, the second largest island in Greece. On 14 investigated localities, charophytes have been found in 11 of them. All localities, except one (loc. 2) are freshwater. The most common species is Chara vulgaris, which has been found in five localities, of which the waterfalls north of Dhrimona is the most interesting and where the alga has optimal conditions. The two species C. connivens and C. globularis were found in the highly eutrophic alkaline lake Dhistou. In north and west of Prokopi there are several lakes in an old mining area. In the two northern of these C. kokeilii, a rare species in Europe, was found. In the western lakes only C. canescens was found. As these lakes are freshwater, they are unusual places to find C. canescens.

The southern limit of peat mosses (genus Sphagnum) in the western Mediterranean basin is located in North Africa, where they are rare and restricted to a few wet habitats. Based on herbarium specimens from 1861 to 1958, on recent collects and on floristic surveys, the present paper addresses the taxonomy, distribution, and ecological significance of peat mosses of the Numidian-Kroumirian range. Despite 17 different names are mentioned in the literature and on herbarium specimens, only two species (Sphagnum auriculatum and S. subnitens) are attested in Numidia and Kroumiria. However, S. subnitens, only known from collects in 1948 and 1951 in Kroumiria, is considered as regionally extinct. S. auriculatum still occurs in several sites on Jbel Bir and Jbel Sra in Kroumiria, and in El Tarf region in Numidia, but it seems to have disappeared from Senhadja and El Kala regions (Algeria), and from Sejenane region (Tunisia), at both extremities of its ancient distribution area. It develops mainly within shrubby communities, often comprising Alnus glutinosa and Erica scoparia, and belonging to the regressive hydroseral series of the Alnion glutinosae. It constitutes a characteristic species of the pioneer stage of the succession, corresponding to the association Cariceto-Sphagnetum (plumulosi) auriculati. The present-day decline, along with the rarity and vulnerability of Sphagnum and associated species in Numidia and Kroumiria should lead to the rap...

The author reports the status of knowledge on Capparis in the East Mediterranea countries with special regard to Israel on the basis literature, the revision of the specimens housed in HUJ and on field studies. A new species from Jerusalem is here described and named C. hierosolymitana. In addition a tentative key for the caper species in Israel is presented.

The name Portulaca macrantha (Maire) Ricceri & Arrigoni and its basionym, P. oleracea var. macrantha Maire, from Morocco, are lectotypified. Seed micromorphology demonstrates that the species is distinct from the closely related P. papillatostellulata and P. rausii. It does not occur in Italy.

The results of a bryofloristic study on the Italian Carnic Alps are reported. The bryophytes collected are 177 of wich 53 liverworts and 124 mosses. Among them 10 species are new records for the Friuli-Venezia Giulia region and 2 for the Veneto region. The bryoflora is typically montane and subalpine, very rich and well diversified, with a predominance of boreo-temperate and boreo-arctic-montane species. Among the liverworts it is to highlight the occurrence of the rare taxa in Italy Blepharostoma trichophyllum subsp. brevirete, Saccogyna viticulosa, Mylia taylorii, Scapania gracilis and Conocephalum salebrosum, the last one second record for Italy. Among the mosses, we emphasize the occurrence of Schistidium dupretii and Ulota coartata, the last one up to now considered extinct in Italy.

In the third contribution to the study of Pantelleria mediterranean maquis litter, thirteen species of Dematiaceous Hyphomycetes are found and described. Three of them are proposed as new species: Anungitea pseudoramosa, A. sibaensis and Subulispora insularis.

Phitosia crocifolia (Boiss. & Heldr.) Kamari & Greuter (=Crepis crocifolia) is a monotypic endemic genus of the Greek flora, known, so far, to occur only on the Taigetos range in S Peloponnisos, Greece. Recently, it was also discovered on the main summit area (Megali Tourla or Kronion) of Mt. Parnonas, E Peloponnisos. It occurs on limestone, stony and rocky open places, at about 1810-1870 m altitude. The taxon has been listed in the recent Greek Red Data Book as Endangered. Phitosia crocifolia, under the name Crepis crocifolia, is legally protected by several directives for the nature.

This is the fifth contribution to the knowledge of Dematiaceous Hyphomycetes colonizing the litter in Mediterranean maquis. Twelve species are described and notes on the morphological characters are pointed out. Three of them are reported as genus, they need an examination of more material.

This is the twentieth of a series of reports of chromosome numbers from Mediterranean area, peri-Alpine communities and the Atlantic Islands, in English or French language. It comprises contributions on 28 taxa: Atriplex, Chenopodium and Suaeda from Bulgaria, by N. Grozeva (Nos 1709-1714); Atriplex and Chenopodium from Bulgaria, by N. Grozeva (Nos 1715-1721); Genista and Anthyllis from Lebanon-Syria and Spain, by T. Cusma Velari, L. Feoli Chiapella, V. Kosovel & M. Livneh (Nos 1722-1724); Stachys, Seseli and Petrocoptis from Spain by J. Simon, M. Bosch, A. Rovira & C. Blanché (Nos 1725-1727); Crocus, Asphodelus, Ornithogalum, Ophrys, Barlia, Cyclamen and Anemone from Greece by S. Samaropoulou, P. Bareka & G. Kamari (Nos 1728-1735); Pilosella from Italy, by E. Di Gristina, A. Geraci & F. M. Raimondo (No 1736).