Three new species in the genus Ficinia (Cyperaceae, tribe Cypereae) from the Greater Cape Floristic Region of South Africa
Author
Muasya, A. Muthama
0000-0002-0763-0780
Bolus Herbarium, Department of Biological Sciences, University of Cape Town, Private Bag X 3, Rondebosch 7700, South Africa & muthama. muasya @ uct. ac. za; https: // orcid. org / 0000 - 0002 - 0763 - 0780
muthama.muasya@uct.ac.za
Author
Stirton, Charles H.
0000-0001-7207-2765
Bolus Herbarium, Department of Biological Sciences, University of Cape Town, Private Bag X 3, Rondebosch 7700, South Africa & chstirton @ gmail. com; https: // orcid. org / 0000 - 0001 - 7207 - 2765
chstirton@gmail.com
text
Phytotaxa
2022
2022-06-16
550
3
287
294
journal article
89731
10.11646/phytotaxa.550.3.9
0be3f6b9-593a-4740-813f-be89e24ef2fd
1179-3163
6651094
Ficinia bolusiana
Muasya & C.H.Stirt.
,
sp. nov
.
(
Fig. 1
)
Diagnosis:—
Ficinia bolusiana
is characterised by its tufted perennial habit forming circles of up to
30 cm
diameter but lacking a visible rhizome, culms to
30 cm
tall, leaf sheaths not papery, and inflorescences capitate.
Ficinia bolusiana
is morphologically most similar to
F. dunensis
Levyns (1947: 13)
, especially in its common gross morphology. These taxa differ in habit, with
F. bolusiana
growing in tufts comprising over 20 culms that are congested with no visible rhizome, whereas
F. dunensis
has a wiry rhizome and the tillers/shoots barely reach 10 culms. There are also ecological and geographical differences.
Ficinia bolusiana
grows inland in the Fynbos/Succulent Karoo ecotone on shale to sandy soils above
200 m
, whereas
F. dunensis
is restricted to calcareous sands below
100 m
elevation.
FIGURE 1
.
Ficinia bolusiana
. A. Habit. B. Leaf blade and sheath. C. Inflorescence. D. Glume. Artist: Kay-Leigh Kilian, based on
A.M. Muasya & C.H. Stirton 5908
(BOL).
FIGURE 2
. Distribution of the three species mapped at the centroid of each quarter degree square. Symbols used for
F. bolusiana
(circle),
F. stirtonii
(triangle),
F. swartruggensis
(square).
Type:—
SOUTH AFRICA
.
Western Cape Province
.
Worcester
: along R46 between
Ceres
and N1,
33°18’52.4”S
19°48’27.3”E
,
24 September 2014
,
A.M. Muasya
&
C.H. Stirton
7168
(
holotype
BOL
!,
isotype
NBG
!)
.
Perennial, forming tufts to
20 cm
diameter, shortly spaced tillers/shoots comprise over 20 stems.
Culms
220–400 mm
tall,
0.4–0.7 mm
thick, ca.
2.7 mm
thick across the rim/edge of the leaf sheath, glabrous.
Leaf sheath
25–83 mm
long, glabrous, not papery, glossy, brown to creamish, without a ligule.
Leaf blade
33–95×
0.4–0.9 mm
, flat to channelled, glabrous, margin scabrid.
Involucral bracts
3–5, leaf-like, and lowermost enclosing spikelets,
15–34 mm
long, glabrous, margin scabrid.
Inflorescence
capitate, each with over 4–7 spikelets.
Spikelets
4.3–5.4×
1.4–2.4 mm
, terete, dark brown, florets bisexual.
Glumes
3.3–5.3 mm
long, ovate with a mucro up to
0.5 mm
long, margins entire.
Stamens
3; anthers
1.5–3.1 mm
long, crested.
Style
trifid,
3.1–4.4 mm
long.
Nutlets
2.1–2.7×1.0–
1.5 mm
, dark brown, papillose; hypogynous disc up to
0.2 mm
long, cupular, not distinctly lobed.
Distribution and ecology:
—Occurs in the Northern and
Western Cape
(
Fig. 2
) and is found between
200–1400 m
elevation in deep sandy soils in arid fynbos in the ecotonal areas of Fynbos and Succulent Karoo biomes.
Etymology:
—
The epithet
bolusiana
celebrates the Bolus herbarium, which is a hub for taxonomic studies of the
Cape
flora. Established in 1865, it is the oldest functioning herbarium in (South) Africa.
Conservation status:
—This species is widespread and occurs in areas that are not under disruptive land use practices. Therefore, we consider it to be of Least Concern (LC) based on the
IUCN (2022)
criteria.
Additional specimens studied:
—
SOUTH AFRICA
.
Northern Cape Province
.
Springbok
:
Farm Kap Vley
315 (2917CD),
10 October 1986
, A.
Le Roux
&
J. W. Lloyd
714
(
PRE
)
;
30 km
SE of Springbok
,
Klipfontein
266 (2917DD),
5 July 2013
,
N.A. Helme
7783
(
BOL
)
.
Kamiesberg
:
Studer’s Pass area
(3018AC),
13 May 2013
,
A.M. Muasya
&
N. Moiloa
6940
(
BOL
)
;
Leliefontein
to
Khamieskroon
(3018AC)
24 November 2015
,
A.M. Muasya
,
N. Moiloa
,
A. Garcia-Madrid
, S.
Chimphango
7040
(
BOL
)
.
Calvinia
:
Botterkloof Pass
, summit of
Pass
(3119CD),
October 1975
,
T.H. Arnold
934
(K,
PRE
)
.
Western Cape Province
.
Clanwilliam
:
Wildshutskraal
, from N7 towards
Paleisheuwel
(3218BD),
24 Oct 2009
,
A.M. Muasya
&
C.H. Stirton
4792
(
BOL
)
.
Wuppertal
:
Cedarberg
,
Middelberg Plateau
(3219AC),
14 December 1941
,
E.E. Esterhuysen
7223
(
PRE
)
;
Klipfonteinrand, N.
of
Pakhuis Pass
(3219AA),
22 September 1969
,
E.E. Esterhuysen
32193
(K,
PRE
)
;
Cedarberg Pass
,between
Citrusdal
and
Ceres
(3219AC),
October 1975
,
T.H. Arnold
1001
(K,
PRE
)
;
Cedarberg State Forest
,
Sneeuberg
shale band (3219AC),
27 October 1989
,
D.C. Le Maitre
627
(
PRE
)
;
Cedarberg, NW
. of
Sneeuberg
hut, along track to
Noordpoort
(3219AC),
19 September 1984
,
H.C. Taylor
11066
(
PRE
)
;
Central Cedarberg
,
Welbedacht
(3219AC),
30 September 1986
,
H.C. Taylor
11595
(
NBG
,
PRE
)
;
Citrusdal
, 15
Km
from
Citrusdal
on road to
Ceres
(3219CA),
October 1975
,
T.H. Arnold
991
(K,
PRE
)
;
Ceres
Karoo, along road to
Kagga Kamma
(3219DC),
1 October 2009
,
A.M. Muasya
, I.
Jardine
,
C.H. Stirton
4595
(
BOL
)
;
Swartruggens
,
Knolfontein
(3219DC),
18 November 2014
,
A.M. Muasya
&
Y. Ito
7215
(
BOL
)
.
Worcester
:
Southern Witzenberg Mts.
,
Ceres
Peak (3319AD),
October 1975
,
T.H. Arnold
972
(K,
NU
,
PRE
)
;
Swartruggens
(3319BA),
16 September 1964
,
H.C. Taylor
5877
(K,
NBG
,
NU
,
PRE
)
;
Brandvlei Dam
(3319CB),
03 August 2014
,
A.M. Muasya
&
N. Moiloa
7139
(
BOL
)
;
Hex River Mts.
,
Ezelsfontein
(3319DA),
01 September 1952
,
E.E. Esterhuysen
20366
(
PRE
, K)
.
Oudtshoorn
:
Camfer Station
(3322CD),
29 September 1962
,
J.P.H. Acocks
22858
(
BR
,
PRE
)
.