A taxonomic revision of the genus Pauridia (Hypoxidaceae) in southern Africa
Author
Snijman, Deirdre A.
Compton Herbarium, South African National Biodiversity Institute, Private Bag X 7, Claremont 7735, South Africa / Department of Botany and Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg, 2006, South Africa;
d.snijman@sanbi.org.za
text
Phytotaxa
2014
2014-10-14
182
1
1
114
journal article
10.11646/phytotaxa.182.1.1
1179-3163
8307173
4.
Pauridia maryae
Snijman
,
sp. nov.
Fig. 11
Closely related to
Pauridia flaccida
but distinguished by the leaves forming a smooth, brown, papery or leathery neck proximally, a corm in which the fibres are soft and short, rather than firm with spreading tips, by oblong, shorter stigma branches (2.0–
3.5 mm
versus 2.5–5.5(–6.5) mm long), and by the outer filaments shorter than the inner by
0.5–1.5 mm
(versus equally long or rarely up to
0.5 mm
shorter).
Type:
—
SOUTH AFRICA
.
Eastern Cape
:
Kouga Mountains
, neck
Nof Smutsberg
(QDS: 3323
DB
),
18 September 1973
,
M.F. Thompson
1974
(
holotype
,
NBG
!; isotypes, K!,
MO
!,
PRE
!)
.
Plants
5–19 cm
tall. Corm ovoid,
10–13 mm
diam., covered with mostly fine, brown, fibrous tunics; fibres densely reticulate, fused to basal disc, not extended into a neck; roots spreading from near corm base. Cataphylls persisting as a papery or leathery, brown, slender neck up to
20 mm
long. Leaves 3–7, sheathing up to
30 mm
from base, suberect to spreading, linear, 20–190 × 1.0–1.5(–3.0) mm, shallowly carinate, pale green; epidermis large-celled, margin entire; apex turning black when cut. Inflorescences 1 or
2 in
flower at a time, 2-flowered, rarely 1 remaining rudimentary, shorter than or as long as leaves; scape 20–90 × ca.
1 mm
, somewhat compressed laterally, greenish red; bracts 2, clasping pedicels at base, narrowly lanceolate, 10–16 ×
2–3 mm
, thin-textured, greenish red, with narrow, translucent edges, occasionally 1 bract shorter and much narrower. Flowers pedicellate, stellate, yellow, backed with pale green, midrib occasionally reddish brown, unscented; pedicels suberect, terete, 56–80 ×
1 mm
, remaining suberect when fruiting, reddish green; tepals 6, lanceolate to narrowly elliptical,
5.5–8.5 mm
long, outer
2–4 mm
wide, mucronate, inner 1.5–2.0 mm wide. Stamens 6, unequal, outer nearly half as long as inner, suberect to slightly spreading, yellow; filaments inserted on ovary rim, outer
1–2 mm
long, slightly shorter than anthers, inner
1.5–3.5 mm
long, as long as or longer than anthers; anthers somewhat oblong, latrorse,
1.2–2.5 mm
long, basal lobes up to
0.2 mm
long, apex shallowly notched; pollen yellow. Ovary obconical, 2–4 × 1.7–2.0 mm, 3-locular; style 1.0–
1.2 mm
long; stigma branches suberect, oblong, often unequal, 1.7–4.0 × 0.5–1.0 mm, slightly shorter than stamens, yellow, densely papillose. Capsules obconical, ca. 4.5 ×
3.5 mm
, dehiscence circumscissile. Seeds ovoid, ca. 0.5 ×
0.4 mm
, dark brown to matt black, epidermal cells densely colliculate, in ca. 35 longitudinal rows, anticlinal walls isodiametric, outer periclinal walls almost entirely convex and finely pitted. Flowering period: (June–)August–October(–November).
Distribution and habitat
:—
Pauridia maryae
is known from the Langeberg near Swellendam,
Western Cape
, eastwards along the
Cape
Fold Mountains to Van Staadens Gorge near Port Elizabeth,
Eastern Cape
(
Fig. 10B
). Small populations are found scattered on south-facing slopes, in wet or seasonally moist places, most often on peatcovered rocks or in peaty depressions amongst fynbos.
Diagnostic features
:—Until now most collections of
Pauridia maryae
have been identified as
P
.
flaccida
, following the treatments in
Goldblatt & Manning (2000)
and
Manning & Goldblatt (2012)
. Unlike
P. flaccida
,
P. maryae
has leaves enclosed by smooth brown, papery or leathery sheaths proximally and a corm in which the tips of the soft fibres remain short. In contrast to the broadly sagittate stigma branches of
P. flaccida
, those of
P. maryae
are oblong and shorter (2.0–
3.5 mm
versus 2.5–5.5(–6.5) mm long). In addition, the outer filaments are consistently shorter than the inner ones by
0.5–1.5 mm
, rather than equally long or rarely up to
0.5 mm
shorter as in
P. flaccida
. The distinctly biseriate stamens also suggest an alliance with
P. aemulans
which differs in having a solitary-flowered inflorescence with a short, linear bract (
1.5–7.5 mm
long), unlike the two-flowered inflorescence in
P. maryae
with longer, narrowly lanceolate bracts (
10–16 mm
long).
FIGURE 11.
Pauridia maryae
. Holotype,
Thompson 1974
(NBG!), collected on Kouga Mountains, Eastern Cape, South Africa.
Discussion
:—The small habit and generally soft appearance of most specimens of
Pauridia maryae
may lead to confusion with the similar looking
P. trifurcillata
.
Nel (1914b)
himself mistakenly cited a specimen of
P. maryae
under
P. trifurcillata
, namely
Burchell 5495
(K!).
P. trifurcillata
, however, flowers in autumn and is distinguished by its unique style in which the downturned basal lobes appear as three prominent extensions protruding between the stamen filaments. Moreover, only the bases and rounded apices of the style branches are stigmatic.
Etymology
:—The name
Pauridia maryae
honours the late Mary Thompson who provided the morphological groundwork for this revision (
Thompson 1972
a, 1976
,
1978
,
1979
) and a rich gathering of material, amongst which is the
type
for this species.
Additional specimens examined
(
paratypes
)
:—
SOUTH AFRICA
.
Western Cape
: edge of
Poortjieskloof Dam
,
Wof Barrydale
(QDS: 3320
CD
),
6 September 2004
,
Harrower
2240
(
NBG
!)
;
Swellendam State Forest
,
Marloth Nature Reserve
(QDS: 3320
CD
),
20 June 1972
,
Haynes
633
(
NBG
!)
;
Tradouw Pass
(QDS: 3320
DC
),
October 1927
,
Levyns
617
(
NBG
!)
;
7 miles
from
Barrydale
into
Tradouws Pass
(QDS: 3320
DC
),
18 September 1968
,
Marsh
685
(
NBG
!,
PRE
!)
;
Seven Weeks Poort
(QDS: 3321
AD
)
,
September
,
Rennie
s.n
. (
BOL
62792
!)
;
ridge
between Rooiberg and Bailey Peak
(QDS: 3321
CB
),
11 November 1974
,
Oliver
5431
(
K
!,
NBG
!,
PRE
!)
;
Riversdale District
,
Garcias Pass
(QDS: 3321
CC
),
October 1904
,
H. Bolus
s.n
. (
BOL
62719
!)
;
Riversdale District
,
between Garcias Pass and Muiskraal
(QDS: 3321
CC
),
October 1904
,
H. Bolus
s.n
. (
BOL
31838
!)
;
Muiskraal
, near
Garcias Pass
(QDS: 3321
CC
),
3 October 1897
,
Galpin
4734
(
PRE
!)
;
Langfontein
,
Mossel Bay
Division (QDS: 3321
DD
),
15 May 1915
,
Muir
2158
(
BOL
!,
PRE
!)
;
Cango Caves
parking lot (QDS: 3322
AC
),
8 September 2001
,
Goldblatt
and
Porter
11843
(
NBG
!)
;
Meiringspoort
(QDS: 3322
BC
),
October 1949
,
Stokoe
s.n.
(
SAM
63776
!)
;
Knysna River
(QDS: 3322
CC
),
1 September 1997
,
Baard
190A
(
PRE
!)
;
Buffelsrivier
, below
Kammanassieberg
(QDS: 3322
DB
),
3 October 1971
,
Thompson
1377
(
NBG
!)
;
Wilderness-George
(QDS: 3322
DC
),
July 1923
,
Levyns
4284
(
BOL
!)
;
July 1935
,
Levyns
5027
(
BOL
!)
;
Wilderness Heights
, overlooking
Wilderness Lagoon
(QDS: 3322
DC
),
28 August 1999
,
Snijman 1710
(
NBG
!)
;
Uniondale Division
,
Mtns
Sof Avontuur
(QDS: 3323
CA
),
October 1921
,
Fourcade
1685
(
BOL
!,
GRA
!, NBG!,
PRE
!,
ZT
!)
;
Potjieshoogte
(QDS: 3323
CA
),
1 October 1971
,
Thompson
1334
(
NBG
!)
;
Bo Kouga
(QDS: 3323
CB
),
14 September 1973
,
Bayliss
6041
(
NBG
!)
;
Prince Alfred's Pass
,
2.3 miles
[
3.6 km
] from
Avontuur
(QDS: 3323
CC
),
26 September 1967
,
Thompson
574
(
NBG
!,
PRE
!)
;
George
Division,
Keurbooms River
,
Long Kloof
(QDS: 3323
CD
),
September 1936
,
Fourcade
5233
(
BOL
!)
;
Outeniqua Mtns
,
between Herold and George
, top of
Montagu Pass
(QDS: 3323
CD
),
22 November 1999
,
Snijman 1719
(
NBG
!)
;
Uniondale Division
,
Joubertinia
,
De Hoek, N
side of
Zitzikamma Mtns
(QDS: 3323
DC
),
18 Nov. 1944
,
Esterhuysen
10671
(
BOL
!)
;
Kromme River
,
Heights
(QDS: 3323
DD
),
August 1923
,
Fourcade
2901
(
NBG
!)
;
Skaapkop River
Mouth (QDS: 3422
AB
),
25 May 1984
,
O'Callaghan
,
Fellingham
& Van Wyk 151
(
NBG
!,
PRE
!)
;
George District
, headlands along coastline
Sof Pacaltsdorp
, above
Rooiklip
(QDS: 3422
AB
),
13 August 1993
,
Victor
207
(
PRE
!)
;
George Region
,
Gwaing River
estuary (QDS: 3422
AB
),
16 August 1993
,
Victor
335
(
PRE
!)
;
Knysna
,
Noetzie
(QDS: 3423
AA
),
14 September 1960
,
Acocks
21511
(
NBG
!,
PRE
!)
;
near
Mellville
,
Knysna Division
(QDS: 3423
AA
),
29 June 1814
,
Burchell
5495
(
K
!, [image only])
;
Knysna
(QDS: 3423
AA
)
,
August
,
Tyson. s.n
. (
GRA
!)
;
Plettenberg Bay
(QDS: 3423
AB
),
September 1921
,
Smart
s.n
. sub
Transvaal Museum
22828 (
PRE
!)
.
Eastern Cape
:
Cockscomb
, side of blast-dump (QDS: 3324
BD
),
6 September 1954
,
Noel
s.n.
(
GRA
!)
;
Kouga Mtns
(QDS: 3324
CA
),
30 July 1973
,
Bayliss
5821
(
NBG
!)
;
Kouga
between Ziewefontein and Joubertskraal
(QDS: 3324
CB
),
September1925
,
Fourcade
3124
(
NBG
!,
PRE
!)
;
Baviaanskloof Mtns
between Smitskraal and Wilgerhof
(QDS: 3324
CB
)
,
17
September
1073
,
Thompson
1965
(
NBG
!,
PRE
!)
;
Companies Drift
(QDS: 3324
CC
),
September 1922
,
Fourcade
2315
(
NBG
!)
;
Vanstadens Mtns NW
end of watershed in kloof runnnng down to
Vanstadens River
(QDS: 3324
CC
),
18 September 1973
,
Thompson
1863
(
NBG
!,
PRE
!)
;
Assegaaibosch
(QDS: 3324
CD
)
,
1930,
Thode
A2576
(
NH
!,
PRE
!)
;
Van Staadens Gorge, Port Elizabeth (QDS: 3325
DC
),
31 July 1932
,
Long
632
(
GRA
!,
PRE
!)
;
Witte Els Bosch
(QDS: 3424
AA
),
September 1920
,
Fourcade
896
(
BOL
!,
GRA
!)
.