145 
§§Leaflets not more than 2 mm. 
broad : 
Midrib central or nearly so, 
prominent below ; Tangan- 
ika 
Midrib near the margin, pro- 
minent below ; Tanganyika 
Midrib quite inconspicuous, 
me 
times slightly visible 
above; Katanga and N. 
Rhodesia 
Here also comes the imperfectly 
t{Leaflets not contiguous, usually 
mote from one another; mid- 
rib more or less central : 
Leaf-rhachis glabrous; leaflets 
anceolate, 4-8 cm. long, 
glabrous 
Leaf-rhachis pubescent : 
Leaflets about 4 mm. broad : 
peers ae a wg ea 
se; Rhodesi 
ane Tonies E. Africa 
(see page 142, fig. 3) ...... 
Leaflets rounded only on 
one side, very oblique on 
the other; Tanganyika 
Leaflets about 1 cm. broad : 
Leaf i 
averaging about 3 cm. 
long : 
Leaflets downy below, 
rescent on the 
margin ; oles 
tomentellous ....... 
2 19887 
ho 
@ 
19. 
bo 
oO 
23. 
24. 
25. 
. 26. 
. microphylla. 
taxifolia. 
. mimosaefolia. 
21. pectinata. 
described species ..:......... ‘ 
. longifolia. 
reticulata. 
apertifolia. 
