A taxonomic synopsis of the genus Paspalum (Poaceae) in Egypt, including the first record of Paspalum vaginatum for the flora Author Faried, Ahmed M. text Phytotaxa 2018 2018-01-30 336 2 171 180 http://dx.doi.org/10.11646/phytotaxa.336.2.4 journal article 10.11646/phytotaxa.336.2.4 1179-3163 13720204 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 ). FIGURE 1. Distribution map of Paspalum species in Egypt. P. vaginatum ( Î ), P. dilatatum ( Δ ), P. distichum ( z ), P. racemosum (). TABLE 1. Paspalum species and synonyms reported by different authors concerned with the flora of Egypt, including the current study. (+ = present, - = absent, x = recorded as a synonym, * new record for the Flora of the country).

Forsskål (1775)	Boissier (1867– 1879)	Muschler (1912)	Ramis (1929)	Täckholm (1956)	Täckholm (1974)	El Hadidi & Fayed (1994/1995)	Boulos (2005)	Ibrahim et al. (2016)	Present study (2017)
Paspalum dilatatum Poir. in
Lamarck = Paspalum ovatum Nees ex	-	-	-	-	X	+	+	+	+	+
Trinius
Paspalum distichum Linnaeus
= Digitaria paspalodes Michaux
= Paspalum paspalodes (Michx.)	-	-	X	X	+	X	+	+	+	+
Scribner
= Paspalum digitaria Poir.
Paspalum racemosum Lamarck = Paspalum stoloniferum Bosc	-	-	-	-	-	-	+	+	+
Paspalum vaginatum Swartz
= Digitaria vaginata (Sw.)
Magnier	-	-	-	-	-	-	-	-	-	*
= Panicum vaginatum (Sw.)
Grenier & Godron

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 ) .