Rubus revealii A. Beek & Widrlechner 2021
Creators: name: Beek, Abraham Van De
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Rosales
Rosaceae
Rubus
Rubus revealii

description: 23. Rubus revealii Beek & Widrlechner (2021: 79).   
 Type:—CM, Flora of Pennsylvania, Lycoming Co.: North of Salladasburg by Pa. 84, 24.8.1956, H.A. Davis, T. Davis & W. Davis 11574 (holotype CM [CM129946, CM129947])   
 Synonym:— Rubus pensilvanicus auct., non Poiret (1804: 246).   
 Primocane (Figs 20A–B) erect or high arching, diam. 5–8 mm, furrowed, (almost) glabrous; prickles with 2–5 mm broad base, almost straight, up to 4–8 mm long; stipules 13–18 mm, linear to lanceolate, brown, thinly hairy. Leaves palmate 5-foliolate, adaxially (Fig. 20C) only along veins with some hairs, abaxially (Fig. 20D) densely, sometimes slightly greyish pilose; serrature sharp, moderate, with straight teeth; petiole 5–14 cm, appressed pilose, with 5–10 curved or hooked prickles; central leaflet with subcordate, emarginate or rounded base, elliptical, rather abruptly attenuate into moderate tip, 70–105 mm long, width–length index 0.53–0.81, length of petiolule 26–45% of length of leaflet; petiolule of basal leaflets 0–3 mm. Flowering branch hairy. Inflorescence (Figs 20E–F) small, ascendateracemose; pedicels 10–40 mm, densely hairy, with 2–8 pricklets. Flowers: sepals 6–8 × 2–3 mm, patent, hairy, (greyish) green with white margin, unarmed; petals large, elliptical; stamens patent, as long as green styles; anthers, ovaries and receptacle glabrous. Fruits shiny red, becoming black (Fig. 20G).   
 Ecology: — Rubus revealii makes often large populations in open fields and along roadsides.   
 Distribution in South Africa: —Common in the eastern Free State (Clarens) and northern KwaZulu-Natal; scattered in Limpopo, Gauteng, and Mpumalanga; also in Swaziland.   
 Specimens:— SOUTH AFRICA. Limpopo: 3 km van Haenertsburg na Boyle, 1984, Stirton 8013 & 8033 (PRE); Naudé Dam, 2 December 1975, Stirton 5747 (PRE). Gauteng: Moreleta Nature Reserve, 10 November 2016, Jaca & Mkhize 858 (PRE); Suikerbosrand, Heidelbergkloof, 16 October 1971, Bredenkamp 123 (PRE). Mpumalanga: 4 km out of Sabie on road to Graskop, 19 December 1979, Henderson & Gaum 18 (PRE); 1 km van Graskop na Sabie, 28 October 1981, Stirton 9797 (PRE); 1 km van Graskop na Sabie, 29 October 1981, Stirton 9800, 9859, 9861, 9863 & 9866 (PRE); Sabie to Bridal Veil Falls, 6 November 1996, Henderson 1191 (PRE); Long Tom Pas, near Mabulwa Estate, 30 October 2000, Burrows & Burrows 7067 (PRE); Lydenburg, Dullstroom, 20 November 1977, Stirton 7255 (PRE); Duiwelskloof, Weltevreden, 30 October 1959, Scheepers 750 (PRE); Wonderkloof, Sudwala, Rosehaugh Road, 4 November 1996, Henderson 1183 (PRE). Free State: R 711 from Clarens to Fouriesburg, 21 November 2012, Jaca 484 & Netshianane AN 22 (PRE); Clarens, along the R 711, 2 February 2018, Beek 2018.01 (L). KwaZulu-Natal: Road from Vryheid to Louwsburg, 3.2 km before the exit to Louwsburg, south side of the road, 14 February 2018, Beek 2018.08 (L); Pietermaritzburg, November1945, Smith s.n. (PRE); Allerton Laboratory, Chase Valley, 26 October 1938, Connell 21 (PRE); Himeville, 20 November 1961, Marr 26 (PRE).   
 — SWAZILAND. Mololotja Nature Reserve Swaziland, 14 November 1988, Braun 473 (PRE); Along the MR1 south of Piggs Peak, just south of Hawane Christian Life Community Church, 12 February 2018, Beek 2018.06 (L).
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 50, DOI: 10.11646/phytotaxa.515.1.1, http://zenodo.org/record/8061143