var.
anisostegia
|
var.
floribunda
|
var.
paludosa
|
var.
paucinervis
|
Indumentum of stems
|
patent to half-erect, with long and short hairs intermingled |
half-erect to appressed, uniform, dense |
patent to appressed, uniform, dense |
absent, or appressed and
very sparse
|
Indumentum of
lower leaf surface
|
dense on veins and sparse between |
dense on veins and sparse between |
dense on veins and sparse between |
glabrous except sparse
hairs on veins
|
Secondary leaf veins
|
(12–)14–18 pairs |
15–25 pairs |
14–20 pairs |
8–13 pairs
|
Arrangement of bracts (discard the lower pair) |
very unequal, the larger
ones scattered
|
gradually smaller from base to apex |
gradually smaller from base to apex |
gradually smaller from base to apex |
Shape of larger bracts
|
orbicular to broadly elliptic |
orbicular to ovate |
obovate
|
orbicular to ovate |
Indumentum of bracts
|
hairy on midrib outside, and sometimes sparsely inside |
sparsely hairy (at least outside) |
densely hairy on both sides
|
glabrous or with very sparse hairs |
Distribution
|
SE
Cameroon
to
E
D.
R
. Congo (inland)
|
Nigeria
to
Gabon
|
NE
Gabon
and D.
R
.
Congo
|
S
Cameroon
to
Gabon
|