Pavetta trichardtensis (Rubiaceae) and its varieties
Author
Hahn, Norbert
text
Phytotaxa
2022
2022-02-15
533
4
216
222
journal article
20644
10.11646/phytotaxa.533.4.4
05ac27c1-06bd-4f6d-be45-2f13a9f247e9
1179-3163
6091594
Pavetta trichardtensis
var.
trichardtensis
Pavetta zoutpansbergensis
Bremekamp (1933: 260)
.
Type
:—
SOUTH AFRICA
.
Limpopo
:
Zoutpansberg Dist.
[Soutpansberg],
Fundudzi
,
23 January 1931
,
C
.
E
.
B
.
Bredenkamp
&
H
.
G
.
W
.
J
.
Schweickerdt
349
(
holotype
PRE
! [barcode
PRE0147921
-0]; isotype
PRU
! [barcode
PRU0002499
-0])
.
Pavetta hirtiflora
Bremekamp (1934: 161)
.
Type
:—
SOUTH AFRICA
.
Limpopo
:
Shilouvane
[Shiluvane],
Janvier
(défleuri) [January (losing its flowers)],
H
.
A
.
Junod
829
(
holotype
G
image! [barcode
G00359392
]; isotypes
PRE
!,
K
image! [barcode
K000412389
],
M
image! [barcode M-0183269])
.
Distribution
:—Soutpansberg through to the Wolkberg following the Great Escarpment (
Fig. 1
).
Conservation status
:—
Least Concern (LC
).
Pavetta trichardtensis
var.
trichardtensis
encompasses an EOO of approximately
8380 km
2
and an AOO at a
2 km
cell width of
68 km
2
or AOO at a
5 km
cell width of
375 km
2
. As
Boon
et al.
(2020)
pointed out, a
5 km
cell width gives a more realistic estimation of the AOO than the recommended
2 km
cell width (
IUCN Standards and Petitions Committee 2019
) given a plant with few locality points. Taking into consideration the EOO and AOO,
var.
trichardtensis
would fall under the Vulnerable category. Nonetheless it does not fulfil any of the additional criteria for such a listing and is therefore assigned a conservation status of Least Concern.
FIGURE 1
.—Distribution of both varieties of
Pavetta trichardtensis
overlain across the geomorphic provinces of South Africa (
Partridge
et al.
2010
) also including the Blouberg, Makgabeng and Soutpansberg (
Hahn 2011
).
Specimens examined
:—
SOUTH AFRICA
.
Limpopo
:
Bosley
(2229
DD
),
15 March 1985
,
P
. &
G
.
Raal
349
(
PRE
);
Fundudzi
(2230
CD
),
23 January 1931
,
C
.
E
.
B
.
Bremekamp
&
H
.
G
.
W
.
J
.
Schweickerdt
349
(
PRE
);
Pepidi Falls
(2230
CD
),
23 December 1935
,
J
.
C
.
Smuts
&
M
.
C
.
Gillett
3205
(
PRE
);
Thathe Vondo
(2230
CD
),
4 February 1977
,
G
.
Hemm
68
(
PRE
);
Tshamanyatsha
(2230
CD
),
2 December 1980
,
A
.
E
.
Van Wyk
4277
(
PRE
);
Dzamba
(2230
CD
),
27 November 1993
,
N
.
Hahn
625
(
ZPB
);
Khongorori
(2230
CD
),
12 December 1993
,
N
.
Hahn
672
(
ZPB
);
Louis Trichardt
(2329
BB
),
1 February 1919
,
H
.
G
.
Breijer
TVL 19528
(
PRE
);
Hanglip
(2329
BB
),
December 1980
,
A
.
E
.
Van Wyk
4264
(
PRE
);
Hanglip
(2329
BB
),
December 1983
,
A
.
E
.
Van Wyk
6647
(
PRE
);
Rossbach
(2330
AA
),
December 1930
,
A
.
A
.
Obermeyer
TVL 29068
(
PRE
);
Westfalia
(2330
CA
),
11 February 1956
,
J
.D.M.
Keet
1743
(
PRE
),
22 December 1958
,
J
.
C
.
Scheepers
539
(
PRE
),
February 1960
,
J
.
C
.
Scheepers
&
Haasbroek
sn.
(
PRE
),
February 1960
,
J
.
C
.
Scheepers
&
Haasbroek
s.n.
(
PRE
),
9 December 1980
,
A
.
E
.
Van Wyk
4305
(
PRE
);
Legat forest
reserve (2330
CB
),
December 1940
,
H
.
Reynolds
9402
(
PRE
);
Woodbush
(2330
CC
),
1 December 1930
,
J
.
J
.
Meyer
2516
(
PRE
);
Cyprus Forest
(2430
AA
),
12 January 1961
,
A
.
T
.
Renny
146
(
PRE
);
Cyprus Forest
(2430
AA
),
12 January 1961
,
A
.
T
.
Renny
199
(
PRE
);
Lekgalameetse
(2430
AA
),
9 December 1985
,
M
.
Stalmans
823
(
PRE
);
Sikorora
(2430
AB
),
1 December 1922
,
G
.
Van Dam
22937
(
PRE
);
Shilouvane
(2430
AB
),
1 January 1933
,
H
.
A
.
Junod
829
(
PRE
)
.