Synopsis of the genus Vitex (Lamiaceae) in the Democratic Republic of the Congo
Author
Meerts, Pierre
text
Plant Ecology and Evolution
2018
2018-11-28
151
3
380
392
http://dx.doi.org/10.5091/plecevo.2018.1504
journal article
10.5091/plecevo.2018.1504
16.
Vitex rubroaurantiaca
De Wild.
(
De Wildeman 1929a: 15
, as “
rubroaurantiaca
”).
–
Type
:
D.R. Congo
, entre
Masisi et Walikale
,
3 Jan. 1915
, forêt vierge,
Bequaert
6469 (lecto-:
BR
barcode
BR
0000008906236,
designated here
;
isolecto-:
BR
barcode
BR
0000008906175)
.
Vitex duboisii
Moldenke
(
Moldenke 1952: 60
);
Moldenke (1955b: 327)
;
Lebrun & Stork (1997: 524)
.
–
Type
:
D.R. Congo
,
Kutu
,
Ekota
territ.,
Tshuapa
distr.,
Sept. 1934
,
Dubois
608 (holo-:
BR
barcode
BR
0000008906182
;
iso-:
BR
barcode
BR
0000008906199),
synon. nov
.
Vitex lebrunii
Moldenke
(
Moldenke 1952: 62
);
Moldenke (1956: 435)
;
Lebrun & Stork (1997: 525)
.
–
Type
:
D.R. Congo
,
Entre Walikale et Koleke
,
Mar. 1932
,
Lebrun
5303 (holo-:
BR
barcode
BR
0000008905581
;
iso-:
BR
barcode
BR
0000008905604,
Kbarcode K
000192764,
Pbarcode P
00464225),
synon. nov
.
A shrub, generally blackening in herbarium, almost glabrous in all its parts. Leaves 5-foliolate; petiolule
1–15 mm
, lamina narrowly elliptic-oblanceolate, long attenuate at base, acuminate, 5–10 secondary veins. Inflorescence of dichasia, few-flowered, much shorter then subtending leaf, peduncle <
30 mm
, branches puberulous, compressed; calyx
2–3.5 mm
, sparsely puberulous, corolla orange or whitish,
10–12 mm
. Fruit c.
22 mm
long, yellow.
Distribution
– Endemic to D.R. Congo.
Notes
– The
type
specimens of
Vitex duboisii
De Wild.
and
Vitex lebrunii
Moldenke
show the characteristic traits of
Vitex rubroaurantiaca
, i.e. glabrous leaves blackening in herbarium, very short peduncle, few-flowered inflorescence, yellow fruits.
Lectotypification of
Vitex rubroaurantiaca
De Wild.
One gatheringiscitedintheprotologue (
Bequaert
6469), represented in BR by two isotypes (BR barcodes BR0000008906236 & BR0000008906175). Iselect the sheet with De Wildeman’s handwriting on the label as the
lectotype
.