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
25.
Rubus allegheniensis
Porter (1896: 153)
.
Lectotype (designated by
Bailey 1944: 522
):—
USA
.
Pennsylvania
: ‘
Rubus villosus
, Ait.
,
var.
montanus
, mihi Pocono Summit.
Monroe
Co,
Penns
.
Aug. 15/89
’,
Porter
s.n., (
lectotype
NYBG 5990
[http://sweetgum.nybg.org/science/vh/specimen-details/?irn=239862]; isolectotype PH00040760)
Pictures:
—http://rubus-nederland.nl/nl/soorten/systematische-namenlijst/24-braam-genus-rubus-l/braam-subgenus-rubus/zwarte-braamsectie-rubus/staande-braam-subsectie-rubus/trosbraam-serie-alleghenienses-l-h-bailey-a-berger/244-r-allegheniensis
Primocane
erect, diam.
4–7 mm
, angular, furrowed, pilose at tip, later becoming glabrous, with numerous sessile and subsessile glands; prickles 1–4 per
5 cm
, up to
3–5 mm
long; stipules linear-lanceolate,
8–12 mm
, with some stipitate glands.
Leaves
5-foliolate, adaxially hairy, abaxially soft, with long hairs on veins; serrature narrow, very acute with straight or slightly curved teeth; petiole
6–9 cm
, moderately hairy, with 2–8 weak declining or curved prickles; central leaflet
83–118 mm
long, from cordate base, broad ovate-elliptical rather abruptly attenuate into long tip, width–length index 0.51–0.76, length of petiolule 28–53% of length of leaflet.
Flowering branch
rather densely hairy, with sessile, subsessile and stipitate glands; prickles few, acicular,
1–2 mm
long.
Inflorescence
racemose, leafy only at base, hirsute and glandular, with few weak prickles; pedicels ascendant,
10–30 mm
, hirsute, with 0–3 weak pricklets and 25–50 unequal, mostly short stipitate glands.
Flowers
: sepals 7–8 × ±
3 mm
, loosely reflexed, green with white margin, ± appressed pilose, glandular; petals white, elliptic or obovate; stamens longer than greenish styles; anthers and ovaries glabrous; receptacle glabrous or with scattered hair.
Ecology:
—Grassland.
Distribution in
South Africa
:
—Hogsback (
Eastern Cape
), at the same field as
R. laudatus
.
Specimen:—
SOUTH AFRICA
.
Eastern Cape
:
Hogsback
,
21 October 2018
,
Beek 2018.116
(
L
)
.