Acacia Ehrenbergiana Hayne Arzneigewachse 
10 (1827) t. 29. 
Mimosa flava Forskal Fl. Aegypt.-Arab. (1775) 176. 
Acacia flava (Forsk.) Schweinfurth in Bull. Herb. 
Boiss. 4, App. 2 (1896) 214, non Sprengel. 
Acacia Nerastia (Hochst. ex A.Rich.) Schweinfurth 
(4. verugera Schweinfurth) 
In 1867, in his ‘‘Acacien-arten des Nilgebiets,’’ 
Schweinfurth described Acacia verugera as anew species. 
Later, in 1896, he pointed out that Inga Nefasia Hoch- 
stetter ex A. Richard, formerly considered as a synonym 
of Acacia abyssinica Hochstetter ex Bentham, was ac- 
tually this species. ‘The new combination which Schwein- 
furth made at that time seems to have been overlooked 
by many authorities. 
Acacia Nefasia ( Hochst. ex A. Rich. ) Schweinfurth 
in Bull. Herb. Boiss. 4, App. 2 (1896) 209. 
Inga Nefasia Hochstetter ex A. Richard Tent. FI. 
Abyss. 1 (1847) 237. 
Acacia verugera Schweinfurth in Linnaea 35 (1867) 
840, tt. 9, 10. 
Acacia NinoTica (L.) Delile 
(A.arabica (Lam.) Willd.) 
In the Species Plantarum (1753), Linnaeus included 
under the genus Mimosa two species, M.scorpioides and 
M.nilotica. Inthe second edition of the Species Planta- 
rum (1763), Linnaeus combined these two under Mimosa 
nilotica. In 1783, Lamarck in his Encyclopédie, appar- 
ently believing that Linnaeus had confused two different 
species under this name, listed Mimosa nilotica and also 
described a new species Mimosa arabica. 
In the fourth edition of the Species Plantarum (1806), 
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