on the basis of floristic surveys, examination of herbarium materials and literature review, notes on the occurrence and the status of naturalization of 41 exotic taxa of the Lazio region flora are presented. Five taxa are new for the regional flora, one is confirmed, two are excluded. eleven taxa (one naturalized and ten casual) are reported in literature and/or well documented by specimens, but they are not quoted in the recent Flora of Lazio region. other 19 taxa occur in literature, but no herbarium specimens were cited, and we have not able to find them. regarding the remaining four taxa, the status of naturalization are pointed out in comparison with the recent floras. the exotic taxa of the Lazio flora are now 360, corresponding to 10.56% with an increasing of casual (2.75%).
Sulla base di indagini di campo, analisi di materiali d’erbario e ricerche bibliografiche si segnalano novità relativamente alla presenza e allo status di naturalizzazione di 41 taxa alloctoni della flora laziale. cinque sono nuovi per la flora regionale, uno è confermato e due sono da escludere. undici taxa (uno naturalizzato e dieci casuali) risultano segnalati in bibliografia, ben documentati da campioni d’erbario, ma non riportati nella recente Flora del Lazio. Per diciannove taxa, riportati in letteratura, non abbiamo rintracciato esemplari d’erbario. riguardo ai restanti quattro taxa, si precisa lo status di naturalizzazione rispetto alle recenti flore. nel complesso la flora esotica del Lazio ammonta ora a 360 taxa corrispondenti al 10.56% della flora totale.
Aggiornamento alla flora esotica del Lazio (Italia centrale). II / Iamonico, Duilio; Iberite, Mauro; Nicolella, G.. - In: INFORMATORE BOTANICO ITALIANO. - ISSN 0020-0697. - STAMPA. - 46:2(2014), pp. 215-220.
Aggiornamento alla flora esotica del Lazio (Italia centrale). II
IAMONICO, DUILIO;IBERITE, Mauro;
2014
Abstract
on the basis of floristic surveys, examination of herbarium materials and literature review, notes on the occurrence and the status of naturalization of 41 exotic taxa of the Lazio region flora are presented. Five taxa are new for the regional flora, one is confirmed, two are excluded. eleven taxa (one naturalized and ten casual) are reported in literature and/or well documented by specimens, but they are not quoted in the recent Flora of Lazio region. other 19 taxa occur in literature, but no herbarium specimens were cited, and we have not able to find them. regarding the remaining four taxa, the status of naturalization are pointed out in comparison with the recent floras. the exotic taxa of the Lazio flora are now 360, corresponding to 10.56% with an increasing of casual (2.75%).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.