The genus Trichoscypha (Anacardiaceae) in Lower Guinea and Congolia: A synoptic revision
Author
Breteler, F. J.
text
Adansonia
2004
3
26
1
97
127
journal article
http://doi.org/10.5281/zenodo.4605259
1639-4798
4605259
13.
Trichoscypha oddonii
De Wild.
Ann. Mus.
Congo Belge
, Bot., sér.
V
,
I
:
282, t. 60, 61 (1906);
Van der Veken, Fl.
Congo Belge et Ruanda-Urundi
9: 73 (1960);
Wilks
&
Issembé
,
Arbres
Guinée Équatoriale
: 94-95 (2000). —
Type
:
Oddon
in coll.
J
.
Gillet
3659
,
Congo
(Kinshasa),
Sanda, Ƌ
,
♀
fl. juv. fr. 1904 (holo-,
BR
!)
.
FIG. 11. —
Trichoscypha nyangensis
Pellegr.
;
A
, male flower, one petal removed;
B
, female flower, one petal removed;
C
, detail of petiole.
Le Testu 2034
. Drawing by H. DE VRIES.
Trichoscypha le-testui
Lecomte, Not. Syst.
3: 7 (
Mar. 1914
);
Van der Veken, Fl.
Congo Belge et Ruanda-
Urundi
9: 73 (1960). —
Syntypes
:
Le Testu
1263
,
1282
,
Gabon
, Ƌ,
♀
, fl.
Dec. 1907
(syn-, P!);
lecto- (designated here),
Le Testu
1263
, Ƌ fl. Dec. (
P
!; isolecto-,
BM
!)
.
Trichoscypha brieyi
De Wild., Bull. Jard. Bot. État
4: 369 (
Aug. 1914
);
Van der Veken, Fl.
Congo Belge et Ruanda-Urundi
9: 73 (1960). —
Type
:
De Briey
154
,
Congo
(Kinshasa),
Ganda-Sundi, Ƌ
fl. 1911 (holo-, BR!).
Trichoscypha abut
Engl. & Brehmer, Bot. Jahrb. Syst.
54: 322 (1917);
Wilks
&
Issembé
,
Arbres
Guinée Équatoriale
: 94-95 (2000). —
Type
:
Zenker
3554
,
Cameroun
,
Bipindi
,
♀
fl. 1908 (holo-, B, delet.; lecto-, P!, designated here; isolecto-, BR!, GOET!, HBG!, K!, Z!). See Notes.
Trichoscypha ejui
Engl. & Brehmer, Bot. Jahrb. Syst.
54: 322 (1917). —
Type
:
Tessmann
661
,
Equatorial Guinea
,
Bebao in
Campo
area, Ƌ fl.
Nov. 1908
(holo-, B, delet.; lecto-, (designated here) HBG!; isolecto-, K!).
Trichoscypha cabindensis
Exell & Mendonça, Bol. Soc. Brot.
, ser. 2, 26: 279, t. 4 (1952);
Consp. Fl. Angol.
, 2: 127, t. 31 (1954);
Van der Veken, Fl.
Congo Belge
et Ruanda-Urundi 9: 73 (1960). —
Type
:
Gossweiler
6882d
,
Angola
,
Maiombe
,
Belize
, Ƌ fl.
Dec. 1916
(holo-, BM!).
Emiliomarcelia oddonii
(De Wild.) Th. & H. Durand, Syll. Fl. Cong.
: 115 (1909).
Unbranched or poorly branched tree up to
26 m
tall, trunk to
50 cm
dbh. Leaves crowded at the top of the stem or branches, up to
2.50 m
long, (16-)20-28-jugate. Leaflets lanceolate to oblong, (13-)22-35(-50) × (2.5-)7-10(-12)cm, with (10-)15-24(-34)pairs of main lateral nerves, usually pubescent beneath. Inflorescences borne on the lower part (≤
5 m
) of the stem, the male ones up to 30 ×
25 cm
, the female ones up to
15 cm
long. Bracts of the inflorescence 3.5-5 ×
2- 3.5 cm
, deciduous. Flowers (Jan.-Mar., Sep.- Dec.) pink to wine-red. Fruits (Jan.-Feb., Apr.-July, Oct.-Dec.) subellipsoid, up to 7 ×
4 cm
, puberulous to slightly velutinous, sparsely so or not, (partly) glabescent, dark-red at maturity, edible. —
Figs 2B
;
10.
HABITAT AND DISTRIBUTION. —
Rain forest
, from Cameroun to western
Congo
(Kinshasa) and
Angola
(Cabinda). Alt. up to
c.
600 m
.
SELECTED SPECIMENS. —
ANGOLA
:
Gossweiler 6882
, Buco Zau, fl. Dec. (BM!, COI!, K!). —
CAMEROUN
:
Binuyo & Daramola
FHI 35599
, Kumba, fl. Feb. (K!, WAG!);
Leeuwenberg 10010
, near Nkongsamba, fl., fr. June (BR!, P!, WAG!);
Letouzey 13717
, 20 km WNW of
Mamfe, fl. June (P!);
Van Andel et al. 3452
, Elephant Mt., juv. fr. May (SCA, WAG!, YA);
Zenker 3554
, Bipindi, fl. (BR!, G!, GOET!, HBG!, K!, P!, Z!). — CONGO (Brazzaville):
Bouquet 1735
, Sibiti-Zanaga Rd., Isieré, ster. Oct. (P!);
Koechlin 3997
, forêt de Bangou, fl. Dec. (BR!);
Mabiala 795
, Mamboma, juv. fr. Nov. (P!). —
CONGO
(Kinshasa):
Davio 17
, forêt de Kinganga, ster. Dec. (BR!, K!, WAG!);
de Briey 154
, Ganda-Sundi, fl. (BR!);
Toussaint 139
, Luki, ster. Jan. (BR!, K!). —
EQUATORIAL GUINEA
:
Tessmann 66
, Bebao, fl. Nov. (HBG!, K!). —
GABON
:
Bourobou 110
, Makokou, fl. Dec. (LBV, WAG!);
J.J.de Wilde c.s. 11196
,
11197
, Gamba, fl. Nov. (WAG!);
F. Hallé 4572
, Makandé, ster. Feb. (WAG!);
Le Testu 1263
, Tchibanga, fl. Dec. (BM!, BR!, P!);
Le Testu 7855
, Lastoursville, fl. Dec. (BM!, P!, WAG!);
McPherson 13799
, S of Ayem, fl. Mar. (LBV, MO!, P!);
Reitsma & Louis 1856
, 29 km ESE of Médouneu, fr. Feb. (WAG!);
Wieringa et al. 4131
, 11 km WSW of Gongué, fr. Jan. (BR!, LBV, WAG!);
Wilks 2557
, Otouma, fr. Jan. (MO!). — CULTA: Congo (Kinshasa):
Hombert 224
,
252
,
327
,
351
,
371
, I.N.E.A.C. Luki, seedling (BR!).
NOTES. —
ENGLER & BREHMER (1917)
cited seven different collections in their protologue of
Trichoscypha abut
. One of these,
Zenker 3554
, the best distributed collection, has been designated as the
lectotype
.
Trichoscypha oddonii
is very closely related to
T. acuminata
and it may be questioned if these two taxa should be maintained at the species level or wether they might better be treated as varieties. The separation is now based on their leaf characteristics only, as the flowers do not offer reliable elements for specific distinction. In
T. acuminata
e.g., the disc is quite often hairy, but in
T. oddonii
the presence of a glabrous disc is not a constant character as a hairy disc has been observed in
McPherson 13799
, whose leaves at least are clearly
T. oddonii
. In
Cameroun
,
Equatorial Guinea
, and
Gabon
Amvout
or
Amvut
is the vernacular name for both species (
WILKS & ISSEMBÉ 2000: 94
). The local population distinguishes the two based on the tast of their fruits: in
T. oddonii
they are said to be slightly more acid. Additional fieldwork is needed to determine whether the species can be maintained as distinct.