A revision of Lebeckia sect. Lebeckia: The L. sepiaria group Author le Roux, M. M. Department of Botany and Plant Biotechnology, University of Johannesburg, P. O. Box 524, Auckland Park 2006, South Africa Author Van Wyk, B. - E. Department of Botany and Plant Biotechnology, University of Johannesburg, P. O. Box 524, Auckland Park 2006, South Africa bevw@na.rau.ac.za text South African Journal of Botany 2007 2007-01-31 73 1 118 130 http://dx.doi.org/10.1016/j.sajb.2006.09.005 journal article 10.1016/j.sajb.2006.09.005 3a3b284a-51fc-46db-b751-28978c8e5adf 7958313 4.2. L. brevicarpa L. brevicarpa M.M. le Roux and B.-E. van Wyk , sp. nov. L. ambiguae sepiariae similes sed leguminibus brevibus ovatis pauciseminalibus (in L. ambigua et L. sepiaria lineares multiseminales) differt . Fig. 7. Morphology of Lebeckia brevicarpa : (a) lateral view of flower; (b) abaxial view of bract and bracteoles; (c) abaxial view of calyx with the upper lobes to the right; (d) standard petal; (e) wing petal; (f) keel petal; (g) anthers; (h) long, basifixed anther, carinal (intermediate) anther and short, dorsifixed anther; (i) pistil; (j1 – j2) lateral view of pods; (k) cross section of pod; (l) leaf. Vouchers: (a, l) from Schutte 261 (JRAU); (b, e, f, i) from Van Wyk 2550 (JRAU); (c, g, h) from Schutte 261 (JRAU); (d) from Bolus 23854 (BOL); (j) from Van Wyk 3123 (BOL); (k) from Le Roux , Boatwright , Magee and Van Wyk 4 (JRAU). Scale bars: 1 mm. Type: South Africa , Pakhuis Pass [3219 AA], Le Roux and Van Wyk 5 ( NBG , holotype ; BOL , K , PRE , S , isotypes) . Erect, glaucous suffrutex, up to 0.8 m in height. Leaves simple, acicular, articulated near the middle; leaf density 3–6 per 10 mm length of stem. Inflorescences terminal, 220– 280 mm long; rachis furrowed; flowers numerous, relatively dense (5–7 per 10 mm length of rachis), intermediate in size ( 8–11 mm long); pedicel 2–3 mm long; bract narrowly lanceolate, acuminate, 4–6 mm long; bracteoles narrowly triangular to lanceolate, acuminate, up to 2 mm long. Calyx 3.5–5.5 mm long, tube 2.5–3.0 mm long, lobes 1.5–2.5 mm long; subequally lobed but the upper lateral sinuses much wider than the medial sinus and lower lateral sinuses; lobes deltoid, tips minutely pubescent inside. Standard ovate to orbicular, 10–13 × 6.5–7.5 mm ; apex obtuse; claw 2.0– 2.5 mm long. Wings oblong, longer than the keel, 9–11 × 3.5–4.0 mm, with 14–18 rows of sculpturing; apex obtuse; claws ± 3 mm long. Keel rostrate, 8–9 × ± 4 mm , usually without pockets; claws 3.0– 3.5 mm long. Pistil short-stipitate; ovary 8–10 × 0.7– 0.9 mm long, oblong; ovules few (6–10); style 3–5 mm long, curved upwards. Pods ovoid, up to 13 × 5 mm ; indehiscent; terete; fruit wall thick, spongy. Seeds reniform–orbicular, 3.0 × 2.2 mm , indistinctly rugose, pale brown, mottled dark brown to black; hilum dark brown ( Fig. 7 ). 4.2.1. Diagnostic characters L. brevicarpa is similar to L. ambigua and L. sepiaria , but differs markedly in its short, ovate, few-seeded pods (linear and many-seeded in L. ambigua and L. sepiaria ). In L. brevicarpa the wings are longer than the keel and the bracts are less caducous than in L. sepiaria (which has wings that are shorter than the keel) ( Fig. 7 ). 4.2.2. Distribution and habitat L. brevicarpa has a localised distribution and is restricted to altitudes above 400 m in the Bokkeveld and Cedarberg Mountains ( Fig. 8 ), where it is locally common in deep sandy soil on disturbed roadsides. 4.2.3. Specimens examined – 3119 ( Calvinia ): Between Nieuwoudtville and Oorlogskloof (– AC ), Leipoldt 3763 ( BOL ) . – 3218 ( Clanwilliam ) : Pakhuis Pass (– BB ), Acocks 15019 , 15039 ( PRE ) , Bolus 8973 ( PRE ) , Grobbelaar 2002 ( PRE ) , Leach and Forrester 17424 ( PRE ) , Le Roux , Boatwright , Magee and Van Wyk 4 , 5 ( JRAU ) , Marloth 9527 ( PRE ) , Stirton 5937 ( PRE ) , Story 2982 ( PRE ) ; Pakhuis Pass near Kleinkliphuis (– BB ), Emdon 118 ( PRE ) ; Pakhuis Pass , between Clanwilliam and Calvinia (– BB ), Schutte 261 ( JRAU ) ; Pakhuis Pass , Elandsfontein Farm (– BB ), Stirton 9288 ( PRE ) ; Kleinkliphuis (– BB ), Taylor 11023 ( PRE ) ; Piekenierskloof Pass (– DB ), Le Roux , Boatwright , Magee and Van Wyk 8 ( JRAU ) . Fig. 8. Known distribution of Lebeckia brevicarpa . – 3219 ( Wuppertal ): Pakhuis Pass (– AA ), Bolus 8973 , 23854 ( BOL ) , Van Wyk 3123 ( JRAU ) ; Staatsbos , Cedarberg (– AC ), Andrag 141 ( PRE ) ; Kleinplaas , Citrusdal (– AC ), Hanekom 2896 ( PRE ) ; Algeria (– AC ) , Stirton 5916 ( PRE ) ; Algeria Forest Station (– AC ), Stirton 5920 ( PRE ) ; Algeria , Grootberg (– AC ), Van Wyk 2550 ( JRAU , PRE ) ; Grootberg , Cedarberg (– AC ), Viviers 409 ( PRE ) ; Cedarberg Forest Reserve , Grootberg (– AC ), Viviers 489 ( NBG ) .