Acacia vera Willdenow Sp. Pl. 4 (1806) 1085. 
Acacia scorpioides (L.) W.F. Wight in Contrib. U.S. 
Nat. Herb. 9 (1905) 173 in adnot. 
var. typica—Fiori Boschi e piante legn. Eritrea 
(1912) 160. 
Mimosa nilotica Linnaeus Sp. Pl. (1753) 521. 
Acacia vera Willdenow Sp. Pl. 4 (1806) 1085. 
Acacia nilotica (1.) Delile Fl. Aegypt. Ll. (1818) 381. 
Acacia arabica (liam.) Willd. var. Nilotica (L.) 
Bentham in Hooker London Journ. Bot. 1 (1842) 
500. 
Acacia scorpioides (L.) W.F. Wight var. nilotica (L. ) 
A.Chevalier in Bull. Soc. Bot. France 74 (1927) 954. 
var. tomentosa ( Benth.) A..F’. Hill comb. nov. 
Acacia arabica (Lam.) Willd. var. tomentosa Ben- 
tham in Hooker London Journ. Bot. 1 (1842) 500. 
Acacia arabica sensu Guillemin & Perrottet Fl. Sen- 
eg. Tent. 1 (1882) 250 et auct. Afr. plur. 
Acacia nilotica (L.) Delile var. arabica (Lam.) Fiori 
Boschi e piante legn. Eritrea (1912) 160. 
Acacia scorpioides (L.) W. F. Wight var. pubescens 
A.Chevalier in Bull. Soc. Bot. France 74 (1927) 954 
(varietal epithet, a /apsus calami for tomentosa, incor- 
rectly attributed to Bentham). 
Fiori (1912), while correct in reducing Acacia arabica 
to varietal status under Acacia nilotica, failed to take up 
for the new combination the earliest available varietal 
epithet, i.e. tomentosa Bentham. 
var. Kraussiana ( Benth.) A..F’. Hill comb. nov. 
Acacia arabica (Lam.) Willd. var. Krausstana Ben- 
tham in Hooker London Journ. Bot. 1 (1842) 500. 
Acacia Benthami DeRochebrune Toxicol. Afr. 2 
(1898) 192, non Meisner. 
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