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
5.
Vitex cuspidata
Hiern
(
Hiern 1900: 835
);
Baker (1900: 521)
;
De Wildeman (1912a: 467
;
1929a: 9
);
Pieper (1928: 70)
;
Moldenke (1955b: 307
;
1956: 357
);
Lebrun & Stork (1997: 524)
;
Cabral (2013: 196)
.
– Type:
Angola
,
Golungo
Alto
,
Serra de Alto Queta
,
Apr. 1856
,
Welwitsch
5665 (lecto-: BM barcode BM000839706 inadvertently designated by
Cabral
(2013)
(corrected from holotype)
;
isolecto-: BM barcode BM000834573, LISU barcodes
LISU254233
&
LISU223679
, COI barcode
COI00077133
, Pbarcode P00442303, Kbarcode K000735142)
.
Vitex kapirensis
De Wild.
(
De Wildeman 1914a: 141
;
1914c: 405
;
1921: 164
);
Pieper (1928: 40
, 60 & 83)
;
Moldenke (1956: 420)
;
Lebrun & Stork (1997: 524)
.
–
Type
:
D.R. Congo
,
Haut-Katanga
,
Vallée de Kapiri
,
Feb. 1913
,
Homblé
1152 (lecto-:
BR
barcode
BR
0000008905864
designated here
;
isolecto-:
BR
barcodes
BR
0000008905857,
BR
0000008905932 &
BR
00000089052925),
synon. nov
.
A tree. Twigs shortly pale brownish tomentellous. Leaflets 5; petiolules
3–17 mm
; lamina narrowly obovate-elliptic, shortly acuminate-cuspidate, pale fulvous tomentellous on veins beneath, glabrous above. Inflorescence of dichasia, long pedunculate, much branched. Flowers unknown. Fruit
10–15 mm
long.
Distribution
– Subendemic to D.R. Congo, extending to Angola.
Notes
–
Vitex cuspidata
Hiern
is known from very few collections mostly from Angola, all of them in fruit (
Cabral 2013
). Pubescence of ovary is unknown and, accordingly, the species keys out in two groups in the key. Material from the Sudanian region has also been ascribed to that taxon (
Aubréville 1950: 500
) but it is certainly not conspecific. The
type
material of
Vitex kapirensis
is a good match of the
type
material of
Vitex cuspidata
, with a large inflorescence, relatively small fruits, long-petiolulate elliptic leaflets contracted into a short acumen.
V. kapirensis
was synonymized (
Meerts 2016
) with
V. fischeri
, but the latter has much larger leaflets and tertiary veins forming a more conspicuous ladder pattern.
Lectotypification of
Vitex kapirensis
De Wild.
The
type
material of
Vitex kapirensis
consist of four sheets; the sheet with the most complete material and the most extensive collecting information is selected as the
lectotype
.