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
11.
Trichoscypha mannii
Hook.
f.
In Benth. & Hook.f. Gen. Pl. 1: 423 (1862); Keay
in Hutch. & Dalz., Fl. West Trop. Afr. ed. 2, 1: 736
(1958); Breteler, Adansonia, sér. 3, 23: 261 (2001). —
Type
:
Mann
941
,
Equatorial Guinea
/
Gabon
,
Gaboon
R
., lat.
1°N
.,
♀
fl.
July 1861
(holo-, K!)
.
Trichoscypha turbinata
Lecomte, Bull. Soc. Bot.
France
52: 658 (1906). —
Type
:
Klaine
49
,
Gabon
, near
Libreville
, juv. fr.
July 1896
(holo-, P!).
Trichoscypha longipetala
Baker
f., in
Rendle
et al.
,
Cat. Talbot Nig. Plants
: 22 (1913);
Keay in Hutch.
&
Dalz.
,
Fl.
West Trop. Afr.
ed. 2, 1: 736 (1958). —
Type
:
Talbot
1681
,
Nigeria
,
Oban
,
♀
fl. 1912 (holo-, BM!; iso-, WAG!).
Trichoscypha soyauxii
Engl. & Brehmer, Bot. Jahrb. Syst.
54: 319 (1917). —
Type
:
Soyaux
379
,
Gabon
,
Sibange-Farm
,
♀
fl.
Sep. 1881
(holo-, B, delet.).
Neotype
(designated here):
Breteler
&
Van Raalte
5652
,
Gabon
,
Gamba
, fr.
Sep. 1968
(WAG!; iso-, BR!, LBV!).
Trichoscypha subretusa
Engl. & Brehmer, Bot. Jahrb. Syst.
54: 317 (1917). —
Syntypes
:
Ledermann
629
,
Cameroun
,
Ilende
, fl.
Sep. 1908
;
Ledermann
908
,
Cameroun
,
Nkolebunde
, fr.
Oct. 1908
(B, delet.).
Neotype
(designated here):
Binuyo
&
Daramola
FHI 35596
,
Cameroun
,
Kumba, Ƌ
fl.
Mar. 1956
(
WAG
!; iso-,
BR
!, K!, P!)
.
Trichoscypha gambana
Jongkind, Bull. Jard. Bot. Nat. Belg.
63: 224 (1994). —
Type
:
Wieringa
1242
,
Gabon
,
Gamba, Ƌ
fl.
July 1992
(holo-, WAG!; iso-, BR!, LBV, MO!).
Shrub-treelet up to
6 m
tall, or tree up to
c.
15 m
tall, trunk
15 cm
dbh, or liana up to at least
25 m
high. Leaves up to 17-jugate, up to
c.
1 m
long, with hispid to pubescent to tomentose petiole and rhachis, the lowest pair of leaflets sometimes close to the stem; leaflets usually papery, ovate-elliptic to oblong lanceolate, (8-)12-20(-27) × (1-)3- 8(12) cm, up to 13 times as long as wide, usually slender-tipped, mostly with long hairs, but sometimes pubescent to tomentose to glabrous or nearly so. Inflorescences (sub)terminal or axillary, shorter than the leaves, hispid or soft-hairy. Flowers (Mar.- Oct.), petals (2.5)
3-5 mm
long, usually dark-red. Fruits (May-Dec.) subovoid-ellipsoid, usually beaked, (2-)3-3.5(-4) ×
1-1.5 cm
, dark-red at maturity, ± densely to sparsely hairy. —
Figs 2A
;
9
;
10.
FIG. 9. — Leaflet variation in
Trichoscypha mannii
Hook.
f. (lower surfaces except A):
A
,
Breteler et al. 9746
;
B
,
Van Bergen & Van den Houten 161
;
C
,
D
,
J.J. de Wilde et al. 9744
;
E
,
Breteler & Jongkind 10340
;
F
,
Tchouto & Elad BIFAX 66
. Drawing by H. DE VRIES.
FIG. 10. — Distribution of
Trichoscypha
species 11, 13, 15, 18.
HABITAT AND DISTRIBUTION. —
Rain forest
from
Nigeria
to
Congo (Brazzaville)
.
Alt. up to
c.
300 m
.
Also
known from
Upper
Guinea
.
SELECTED SPECIMENS. —
CAMEROUN
:
Binuyo & Daramola
FHI 35596
, Kumba, fl. Mar. (K!, P!, WAG!);
Nemba & Thomas 7
, Konye, fl. Apr. (MO!);
Tchouto et al. 3050
, Mobiogo on Dipikar I., fl. Sep. (WAG!);
Tchouto et al. 3253
, Massif des Mamelles, fl. Apr. (WAG!);
Tchouto et al. ONOX 273
, Onoyong, fl. Mar. (WAG!);
Zenker 80
, Bipindi, fl. Mar. (K!, P!). — CONGO (Brazzaville):
Moutsambote & Dowsett- Lemaire 4521
, Koubotchi, juv. fr. Sep. (BR!). —
GABON
:
Breteler & Van Raalte 5652
, Gamba, fr. Sep. (BR!, LBV!, WAG!);
Breteler 5767
, 50 km SE Lambaréné, fr. Oct.(WAG!);
Breteler et al. 9746
, Rabi, near Echira R., ster. Apr. (WAG!);
Breteler & Jongkind 10340
, Mondah, fr. Nov. (WAG!);
Breteler c.s. 15548
, Assok road, fl. b. Aug. (LBV!, WAG!);
Chevalier 26975
, Agonenzorck, fr. Oct. (P!);
Klaine 49
, Libreville, juv. fr. July (P!);
Le Testu 1586 bis
, Issala, fr. Oct. (P!);
Louis et al. 1311
, Waka, fr. Dec. (WAG!);
Reitsma c.s. 1359
, 40 km SW Doussala, juv. fr. Aug. (WAG!);
Reitsma c.s. 2608
, Lopé Res., fr. Nov. (LBV!, WAG!). —
NIGERIA
:
Latilo & Oguntayo
FHI 67725
, Bendiga Ayuk, fr. Feb. (WAG!);
Mann 2238
, Old Calabar R., fl., fr. (K!, P!);
Talbot 1681
, Oban, fl. (BM!, WAG!). — CULTA (Netherlands):
De Bruijn 1894
, Wageningen, seedling (WAG!);
Van Veldhuizen 1384
, Wageningen, seedling (WAG!).
NOTES. — The variability in shape of the leaflets of
Trichoscypha mannii
is illustrated in
Figure 9
. The type of the synonym
T. gambana
(
Fig. 9A
) represents one of the extreme leaflet shapes within the species, but its flowers are unmistakably of
T. mannii
. More or less the same holds for the other synonyms.
Neotypes
have been designated for two of the synonyms whose original type material was destroyed at Berlin. They were selected taking into account the original description and the origin of types.
12.
Trichoscypha nyangensis
Pellegr.
Bull. Mus. Natl. Hist. Nat. Paris 28: 316 (1922). —
Type
:
Le Testu
2034
,
Gabon
,
Mobila-Mwirri, Ƌ
,
♀
fl.
Mar. 1915
(holo-, P!; iso-,
BM
! (Ƌ),
BR
! (
♀
), G! (Ƌ),
WAG
! (Ƌ,
♀
))
.
Tree
c.
12 m
tall. Branches, petioles, rhachis, and petiolules appressed-puberulous, more sparsely so on the leaflets beneath. Leaves 7-10- jugate; leaflets coriaceous, opposite to subopposite, oblong-lanceolate, 12-18(-20) × 3.5- 6(-7) cm, midrib impressed above, prominent beneath; margin of leaflets ± revolute; petiolules
c.
8-10 mm
long. Inflorescence axillary, up to
c.
30 cm
long. Flowers purplish; calyx, petals outside as well as anthers dark-brown appressedhairy; petals cucculate at apex; anthers of male flowers
3-3.5 mm
long, longer than the filaments. Disc and ovary velutinous. Fruits unknown. —
Figs 4
;
11.
HABITAT AND DISTRIBUTION. —
Rain forest
in SW
Gabon
.
Only
known from the
type
locality. Alt. below
300 m
.
NOTES. — The
type
specimen of
T. nyangensis
consists of a mixture of leaves and female as well as male flowers. The collector, LE TESTU, was not certain about the flowers, whether they were: “polygames? dioiques? Je crois plutôt polygames”. More collections with better field observations are needed to see whether
T. nyangensis
is dioecious like all other members of the genus or not (but see also Notes under
T. rubicunda
).