Paspalum dilatatum Poir.

Faried, Ahmed M., 2018, A taxonomic synopsis of the genus Paspalum (Poaceae) in Egypt, including the first record of Paspalum vaginatum for the flora, Phytotaxa 336 (2), pp. 171-180 : 172-174

Paspalum dilatatum Poir. in Lamarck (1804: 35).

Type:— ARGENTINA. Buenos Aires: P. Commerson s.n. (holotype P00745858!, isotype US-2854662 (fragm. ex P)).

= Paspalum ovatum Nees ex Trinius (1826: 113) . Type:— BRAZIL. Brasilia, Minas Gerais: W. S. J. G. von Besser s.n. (holotype LE-TRIN-0499.03; isotype US-951908 (fragm. ex LE)).

Distribution:— Introduced in Egypt, where known from the Nile region as well as Sinai Peninsula. In the Middle East, also introduced to Iraq, Palestine and Saudi Arabia. Native to South America: Argentina, Brazil, Paraguay and Uruguay ( Wilkin 2014). The species was first recorded in Egypt by Täckholm (1956) ( Table 1). In Egypt, Paspalum dilatatum is a common weed of gardens, nurseries and croplands ( Shaltout et al. 2005).

current study. (+ = present, - = absent, x = recorded as a synonym, * new record for the Flora of the country).

Representative specimens examined:— EGYPT. The Nile region: Cairo, Heliopolis , 21 June 2005, L. Boulos 20569 (Loutfy Boulos Herbarium) ; Giza, Orman garden, 20 August 1952, N. El-Hadidi s.n. ( CAI) ; Cairo University garden, 6 August 1966, A. Khattab s.n. ( CAIM) ; Qanater gardens, 21 May 2002, E. Farahat s.n. (Helwan University Herbarium) ; Dokii, Agriculture Museum garden, 19 March 2014, F. Sami s.n. ( CAIM) ; Baheira, Mahmudiya , 18 August 1987, A. Amer 12614 ( CAI) ; Sharkia, Markaz Bilbeis , 12 September 2016, A. Faried s.n. ( ASTU) ; Assiut, Faculty of Science garden, 15 March 2016, A. Faried and A. Amro s.n. ( ASTU) ; Assiut Governorate club, 4 June 2016, A. Faried and A. Amro s.n. ( ASTU) .