RECENT DATA FROM THE FLORA OF THE ISLAND OF LIMNOS (NE AEGEAN, GREECE): NEW ALIEN INVASIVE SPECIES AFFECTING THE AGRICULTURAL ECONOMY OF THE ISLAND

Recent floristic study of the island of Limnos (NE Aegean, Greece) has resulted in the addition of 69 new plant taxa. As a result the flora of the island now comprises 750 taxa. New alien species such as Erigeron sumatrensis, Erigeron canadensis, Symphyotrichum squamatum, Amaranthus retroflexus and Amaranthus blitoides nowadays colonise thousands of hectares of fertile ground and present the highest rates of invasion. Ecological factors such as soil texture, high winds and human intervention, in combination with their seed dispersal mode and genetic background, may explain their successful establishment and impressive abundance especially in the eastern part of the island. Among the new records of indigenous plants are some interesting taxa from a phytogeographical point of view, such as Bupleurum euboeum and the Greek endemic Polygonum icaricum.</jats:p

Vascular plant diversity of Mt Pendelikon (Sterea Ellas, Greece): A recent inventory reflecting contemporary dynamics

A detailed floristic study of the area of Mt Pendelikon in Sterea Ellas, Greece, in 1998 - 2009 resulted in the addition of 318 specific and infraspecific vascular plant taxa, which are reported here, to a present total of 1080 taxa. At least 41 adventives enriched the vascular plant diversity of the heavily urbanised area significantly as compared to previous sources. For each newly recorded taxon local distribution and habitat types are presented. Morphological, chorological and ecological comments are included where appropriate. Filago aegaea subsp. aristata is reported for the first time from the Greek mainland. Some of the new records are of taxa rare in Greece or of regional endemics and therefore chorologically, ecologically or taxonomically significant, such as Cephalaria setulifera, Chenopodium pumilio, Consolida tenuissima, Iberis saxatilis, Johrenia distans, Malcolmia africana, Muscari armeniacum, Narduroides salzmannii, Onosma kaheirei, Satureja parnassica subsp. hellenica, Silene oligantha subsp. parnesia and Teucrium montanum subsp. helianthemoides. © 2011 BGBM Berlin-Dahlem