Those authorities who consider this variety to be a 
good species cannot utilize DeRochebrune’s name, since 
it is a later homonym of Acacia Benthami Meisner. 
var. indica ( Benth.) A.F'. Hill comb. nov. 
Acacia arabica (Lam.) Willd. var. Indica Bentham 
in Hooker London Journ. Bot. 1 (1842) 500. 
Mimosa arabica Roxburgh PI. Corom. 1 (1795) t. 149. 
Acacia arabica sensu Wight & Arnott Prodr. FI. 
Penin. Ind. Or. 1 (1834) 277 et auct. Ind. plur. 
var. Adansoniana ( Dubard) A..F. Hill comb. nov. 
Acacia arabica (Lam.) Willd. var. Adansoniana Du- 
bard in Henry & Ammann Acacias 4 Tanin (1913) 8. 
Mimosa adstringens Schumacher & Thonning Beskr. 
Guin. Pl. (1827) 827. 
Acacia Adansonu Guillemin & Perrottet Fl. Seneg. 
Tent. 1 (1832) 249. 
Acacia arabica (Lam.) Willd. var. Adansonii (Guill. 
& Perr.) A.Chevalier in Expl. Bot. Afr. Oce. Fr. 1 
(1920) 244. 
Acacia scorpioides (L.) W.F. Wight var. adstringens 
(Schum. & Thonn.) A. Chevalier in Bull. Soc. Bot. 
France 74 (1927) 956. 
Acacia arabica (lam.) Willd. var. adstringens 
(Schum. & Thonn.) E.G. Baker Legum. Trop. Afr. 
(1980) 849. 
Acacia nilotica (.) Delile var. adstringens (Schum. 
& Thonn.) Chiovenda FI. Somal. 2 (1982) 202. 
Mimosa adstringens (1827) and Acacia Adansonii 
(1832) are clearly synonymous. The earlier epithet, how- 
ever, is not available for use under Acacia since the re- 
sulting combination would be a later homonym of Acacia 
adstringens Martius. Acacia Adansonii Guillemin & Per- 
rottet consequently is the correct name for this variant 
[ 99 ] 
