@article {dum4469,
	title = {A taxonomic revision of non-native Cenchrus s.str. (Paniceae, Poaceae) in the Mediterranean area},
	journal = {Willdenowia},
	volume = {41},
	year = {2012},
	month = {6/2012},
	pages = {67-75},
	chapter = {67},
	abstract = {The exact identity of non-native, naturalised populations of Cenchrus s.str. in the Mediterranean area has been critically assessed. A herbarium revision confirmed the presence of three species: Cenchrus echinatus, C. longispinus and C. spinifex (syn.: C. incertus). In the present paper C. echinatus is reported for the first time from Spain and confirmed for Egypt and Israel. C. longispinus, up to present widely confused with C. spinifex, is reported for the first time from Croatia, Greece, Israel and Morocco and furthermore confirmed for France (including Corse) and Italy. Finally, C. spinifex is confirmed for France, Italy and Spain, while records from Greece and Israel proved to be in error for C. longispinus. All three species are much alike and widely confused in the studied area. In some areas (especially in parts of Italy and Israel) two species occur sympatrically, which largely added to the confusion. Main features for their distinction are discussed and a dichotomous key for the identification of the native and non-native species of Cenchrus s.str. in the Mediterranean area is presented.},
	keywords = {GRAMINEAE; CENCHRUS ECHINATUS; CENCHRUS LONGISPINUS; CENCHRUS SPINIFEX; TAXONOMY; CHOROLOGY},
	isbn = {0511-9618},
	issn = {1868-6397},
	doi = {http://dx.doi.org/10.3372/wi.42.42107},
	url = {http://www.ingentaconnect.com/content/bgbm/will/2012/00000042/00000001/art00007},
	author = {Filip Verloove and Enrique S{\'a}nchez Gull{\'o}n}
}
@article {dum3655,
	title = {Juncus dichotomus (Juncaceae) in northwestern Italy, a xenophyte new to Europe},
	journal = {Willdenowia},
	volume = {40},
	year = {2010},
	pages = {173-177},
	chapter = {173},
	abstract = {Juncus dichotomus, a native of the Americas, is reported for the first time from Europe. It is more or less widely naturalised in northwestern Italy (provinces of Biella, Novara, Torino and Vercelli) and probably largely overlooked elsewhere as a result of confusion with J. tenuis. Diagnostic features of both species (and other members of the J. tenuis group currently found in Europe, viz. J. anthelatus and J. dudleyi) are critically assessed and an identification key is presented. Taxonomy and nomenclature of J. dichotomus are discussed, especially with regard to the status of J. platyphyllus, and notes on its present distribution in Italy and its ecology are provided. Like J. tenuis, it often grows in valuable natural and seminatural habitats and locally seems to behave like an invasive environmental weed.},
	issn = {1868-6397},
	doi = {doi:10.3372/wi.40.40202},
	author = {Filip Verloove}
}
@article {dum3382,
	title = {Studies in the genus Paspalum (Paniceae, Poaceae) in Europe {\textendash} 2. The Quadrifaria group},
	journal = {Willdenowia},
	volume = {37},
	year = {2007},
	pages = {423-430},
	chapter = {423},
	abstract = {The South American Paspalum quadrifarium has been reported as a naturalized xenophyte in Tuscany and Liguria, Italy, since at least the 1960s. In the present contribution the discovery of the closely related P. exaltatum, also of South American origin, in Liguria, Italy, is reported. These are the only known occurrences in Europe of both species, which are very similar to each other and likely to be confused. In the present paper their diagnostic features are discussed and original line drawings and SEM photographs for both taxa are presented. Their current distribution in Italy is shown and some ecological remarks are added.},
	keywords = {distribution., Italy, Paspalum exaltatum, Paspalum quadrifarium, taxonomy, xenophyte},
	author = {Filip Verloove and Marc Reynders}
}
