Rubus probabilis L. H. Bailey 1923
Creators: name: Beek, Abraham Van De
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Rosales
Rosaceae
Rubus
Rubus probabilis

description: 26. Rubus probabilis Bailey (1923: 180) (Fig. 21A).   
Type:—to be designated  
 Primocane (Figs 21B–C) up to 1 m high, erect, angular, deeply furrowed, diam. 3–4 mm, somewhat or rather densely hairy, with (sub-)sessile glands; prickles 4–9 per 5 cm, from 3–5 mm base, abruptly attenuate, bluntly compressed, patent or slightly curved, up to 8–11 mm long; stipules linear, 6–11 mm long, with few hairs and some subsessile glands. Leaves palmate 5-foliolate, adaxially hairy, abaxially (Fig. 21D) greyish, with dense short hairs, soft at touch; serrature fine, regular, very sharp, with straight mucronate teeth; petiole 3–5 cm, appressed pilose, with 3–7 curved strong prickles; central leaflet 44–53(–65) mm long, with wedged or rounded base, narrow, obovate or elliptic-obovate, abruptly attenuate into short tip, width–length index 0.45–0.61, length of petiolule 17–30% of length of leaflet; basal and lateral leaflets (almost) sessile. Flowering branch (Fig. 21E) rather densely hairy, with strong curved to hooked prickles. Inflorescence (Figs 21F–G) short racemose, leafy only at base, with 1–7 flowers, hairy, with few (sub-)sessile glands; prickles numerous, curved or hooked; leaves acute or rounded, sharply serrate, adaxially hairy, abaxially greyish, hairy; pedicels ascending, 10–30 mm long, hairy, with subsessile glands and 4–10 curved pricklets, with few (sub-)sessile glands. Flowers: sepals greenish grey, reflexed to patent, abruptly attenuate, very short pointed; petals (Fig. 21H) white, obovate; stamens patent, equalling or longer than styles; anthers glabrous; styles green; ovaries glabrous; receptacle glabrous in centre, few hairs at margin.   
 Ecology: —Roadsides, grasslands.   
 Distribution in South Africa: — Limpopo to southern KwaZulu-Natal, regionally common.   
 Specimens:— SOUTH AFRICA. Limpopo: Canyon Ridge Forest, on road to Czubora Sawmill, 30 October 1996, Nienaber 80 (PRE). Mpumalanga: Barberton, 5 km from escarpment on road to Snymansbult, 26 October 1982, Henderson 637 (PRE). Free State: Between Harrismith and Geluksburg along Middledale Pass near farm Bellevue, 3 February 1987, Henderson 791 (PRE). KwaZulu-Natal: Louwsburg, about 8 km from Swart Umtolozi on road to Ngome forest, 25 November 1986, Henderson 762 (PRE); R 600 to Sterkspruit Falls, 16 February 2018, Beek 2018.10 (L); About 1.5 km from Kelvin Grove Caravan Park on road to Bergville, 4 February 1987 Henderson 805 (PRE); Weenen, 1 December 1944, S cott 3031 (PRE); Estcourt, 23 km on road to Ntabamhlope, 15 January 1980, Henderson 163 (PRE); Mooiriver, 15 December 1961, n.n. 2695 (PRE); Nkandla, 1 March 1952, Codd 6997 (PRE); Nkandla, turn-off below Gudeni, 22 November 1957, Edwards 2211 (PRE); About 11 km from Komo to Nkandla, 29 November 1986, Henderson 775 (PRE); Greytown, Lake Merloth, entrance caravan park, 5 November 1989, Henderson 425 (PRE); Greytown, near Lake Merthley, 3 October 1986, Henderson 749 (PRE); Eshowe, Ongoye Forest Reserve, 9 December 2006, Siebert 3504 (PRE); Lions River, 12 October 1964, Moll 1185 (PRE); Lions River, Nottingham Road, 24 October 1928, Galpin 10247 (PRE); Lions River, 8 miles west of Nottingham Road, 23 March 1954, Codd 8526 (PRE); R 103, from Lion’s River to Nottingham Road, Balgowan, just before turn off to Millgate Cottage and Hunters Lodge, 15 February 2019, Beek 2019.33 (L); Howick, 1 km along Karkloof Road, 15 February 2017, Manning 3603 (NBG); Cedara, 27 September 1985, Noel s.n. (PRE); Babanango, s. dat., King 306 (PRE); About 8 km from Byrne on road to Cottingham, 1 October 1986, Henderson 729 (PRE); Lower Loteni, 1 km before Carter’s Neck on road from Himeville to Rosetta, 16 January 1980, Henderson 49 (PRE); Umhlongo Nek, 1 November 1979, Strey 9208 (PRE); Pietermaritzburg, Natal botanic gardens, 15 October 1990, Stielau 24 (PRE); 11 km van Harding na Weza, 1980, Stirton 8102 (PRE); Weza, 26 September 1986, Henderson 687 (PRE); Underberg, 1 km to Drakensberg Gardens, 10 November 1980, Stirton 8172 (PRE); Underberg, 19 km to Swartberg, 10 November 1980, Stirton 8173, (PRE); 24 km from Underberg to Bulwer, 10 November 1980, Stirton 8193 (PRE); About 2 km outside Coleford Nature Reserve on road to Underberg, 24 September 1986, Henderson 676 (PRE).
description: Published as part of Beek, Abraham Van De, 2021, Rubi Capenses: a further contribution to the knowledge of the genus Rubus (Rosaceae) in South Africa, pp. 1-71 in Phytotaxa 515 (1) on page 51, DOI: 10.11646/phytotaxa.515.1.1, http://zenodo.org/record/8061143