““Cette identité ne ressortait pas nettement de la publication de 
Christensen (Index to P. Forskal: Flora. .). Mais Christensen a bien 
voulu nous préciser par lettre que le specimen de M. tortilis de Forskal 
a bien les légumes pubescents et est absolument identique a 1’ 4. spi- 
rocarpa.’’ 
Since Christensen had access to Forskal’s herbarium 
he was in a much better position to pass accurately on 
the identity of Mimosa tortilis than any of his predeces- 
sors, and his conclusions should carry more weight. In 
view of this, Maire’s action in taking up Acacia Raddiana 
G.Savi for the plant which has been passing as Acacia 
tortilis Hayne is entirely logical. It is also necessary (see 
below) to adopt Acacia tortilis (Forsk.) Hayne in place 
of Acacia spirocarpa Hochstetter ex A. Richard. 
In taking up Acacia Raddiana G.Savi for the plant 
which has been passing as Acacia tortilis Hayne, new 
varietal combinations will be necessary. The nomencla- 
ture of the species and its varieties follows: 
Acacia Raddiana G. Savi Sopraaleune Acacie egiz. 
(1880) 1. 
Acacia tortilis Hayne Arzneigewachse 10 (1827) t. 
31, quoad plantam non quoad nomen; et auct. plur. 
Acacia fasciculata Guillemin & Perrottet Fl. Seneg. 
Tent. 1 (18382) 252, non Kunth, nec R. Brown. 
var. crinita (Chiov. ) A.F’. Hill comb. nov. 
Acacia tortilis Hayne var. crinita Chiovenda Coll. 
Bot. Stef. Paoli 1 (1916) 71. 
var. pubescens (4. Chev.) A.F’. Hill comb. nov. 
Acacia tortilis Hayne var. pubescens A. Chevalier in 
Bull. Soc. Bot. France 74 (1927) 960. 
Acacia fasciculata Guill. & Perr. var. pubescens A. 
Chevalier in Rev. Bot. Appl. 8 (1928) 124. 
Acacia tortilis Hayne var. pubescens Aylmer ex Burtt- 
Davy in Kew Bull. 1930 : 402. 
[ 103 ] 
