Rubi Capenses: a further contribution to the knowledge of the genus Rubus (Rosaceae) in South Africa
Author
Beek, Abraham Van De
text
Phytotaxa
2021
2021-08-19
515
1
1
71
http://dx.doi.org/10.11646/phytotaxa.515.1.1
journal article
10.11646/phytotaxa.515.1.1
1179-3163
8061143
27.
Rubus pascuus
Bailey (1943: 440)
(
Fig. 22A
).
Type
:—to be designated
Note:
—Some specimens from
KwaZulu-Natal
are stronger than
R. probabilis
. They correspond with the North American
R. pascuus
.
Primocane
angular, furrowed, diam.
4–5 mm
, slightly hairy, with sessile glands; prickles 8–10 per
5 cm
from
1–3 mm
base abruptly attenuate, compressed, straight or slightly declining, ±
7 mm
long; stipules linear-lanceolate,
15 mm
long.
Leaves
(
Fig. 22B
) 3-foliolate or pedate 5-foliolate, adaxially rather densely hairy, abaxially greyish, tomentose and soft hairy; serrature with triangular straight short pointed teeth; petiole
5–7 cm
, with long stellate hairs and 10–15 curved strong prickles; central leaflet
57–70 mm
long, broad elliptic, with rounded or subcordate base, rather abruptly attenuate into short tip, sometimes lobate, width–length index 0.62–0.80, length of petiolule 27–43% of length of leaflet.
Flowering branch
(
Fig. 22C
) short hairy with slightly to strongly curved prickles.
Inflorescence
(
Fig. 22D
) axillary or subracemose, with 3–5 flowers on ascending peduncles; pedicels ascendant,
8–21 mm
long, grey tomentose and hairy, with 2–5 pricklets, without stipitate glands.
Flowers
: sepals grey, reflexed, short pointed; petals white, obovate; stamens spreading, somewhat longer than styles; anthers glabrous; ovaries glabrous.
FIGURE 22.
Rubus pascuus
.
A.
Herbarium specimen.
B.
Leaves.
C.
Flowering branch and pedicels.
D.
Inflorescences. Photographs: A. van de Beek.
Ecology:
—Grasslands
Distribution in
South Africa
:
—At some localities in southwestern
KwaZulu-Natal
.
Specimens:—
SOUTH AFRICA
.
KwaZulu-Natal
:
January 1939
,
Leeman s.n
. (
PRE
)
; Mooirivier,
14 miles
on Giants Castle Road,
13 November 1969
,
Wells 3983
(
PRE
)
; Pietermaritzburg,
November 1950
,
Beard 719
(
PRE
)
; Underberg, Rosetta,
8 October 1975
,
Stirton 5175
(
PRE
)
; Kokstad,
40 km
from Underberg to Swartberg,
9 November 1980
,
Stirton 8157
(
PRE627503
)
.