Revision and new species of the African genus Mischogyne (Annonaceae)
Author
Gosline, George
Author
Marshall, Andrew R.
Author
Larridon, Isabel
text
Kew Bulletin
2019
2019-06-30
74
28
1
23
journal article
10.1007/S12225-019-9804-7
1ed5ac34-1b70-4189-a175-7526621e1705
0075-5974
3345047
2b.
Mischogyne elliotiana (
Engl. & Diels
)
Le Thomas
var.
sericea
Keay
(1952: 151)
.
Type:
Sierra Leone
, River bank, Njala,
10 Feb. 1927
,
Deighton
510 (
holotype
K! [K000198795],
lectotype
B!,
NSW
[
NSW
459966]).
Shrub or small tree
to
5 m
tall. Young
taeigs
, petioles, midrib above and below with a dense indumentum of white hairs
0.8 – 1.4 mm
long.
Petioles
5 – 12 mm
long,
2 – 4 mm
in diam.
Leaf
lamina narrowly ovate or ovate to narrowly obovate or obovate,
12 – 25 cm
long,
5 – 8 cm
wide, length:width ratio 2.5 – 4, apex acuminate or attenuate, acumen
2 – 4 cm
long,
1.5 – 2.5 cm
at base, both surfaces with a glabrescent indumentum of appressed white hairs
0.7 – 1.1 mm
long, strongly coriaceous, drying matte brown, lighter below; midrib secondary veins 9 – 14.
Fruit
ellipsoid, constricted between seeds when dry,
4 cm
long,
2 cm
diam., apiculate.
DISTRIBUTION
.
Guinea
(Conakry) and
Sierra Leone
(
Map 1
).
HABITAT
. Lowland forest along rivers.
SPECIMENS EXAMINED.
GUINEA
(
CONAKRY
).
Kindia Préfecture
:
Ouélia
,
Environs de Kindia
,
Bords de la Kolenté
,
60 m
, fl, [9°36'23" 12°37'1"],
1 May 1934
,
H. Jacques-Félix
465 (K!, P*)
.
SIERRA LEONE
.
Southern province
:
Njala, R.
bank, Njala.,
55 m
, [8°6'31" 12°5'],
8 July 1935
,
F. C. Deighton
3015 (K!,
SL
*); ibid.,
10 Feb. 1927
,
F. C. Deighton
510 (
BM
!, K!)
.
PHENOLOGY
. Flowering in February, May; Fruiting July.
VERNACULAR
NAME
. None recorded.
USES
. “The old leaves lose their hairs and become hard, and are used for cleaning caps and other cloth articles.” (
Deighton
510).
Fig. 4.
Mischogyne elliotiana
var.
elliotiana
. A extra-axillary flower; B extra-axillary fruit (
Tonkolili Plants
1324). PHOTOS:
A
CAREL JONGKIND,
B
XANDER VAN DER BURGT.
NOTES
. The larger leathery leaves generally without an acumen together with the glabrescent indumentum of long hairs on the leaves make specimens of this taxon markedly distinct from other
Mischogyne elliotiana
specimens.