A foundation monograph of Convolvulus L. (Convolvulaceae) Author Wood, John R. I. Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK & Honorary Research Associate, Royal Botanic Gardens, Kew Author Williams, Bethany R. M. Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK & Department of Life Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK Author Mitchell, Thomas C. Plant Biodiversity Research, Technische Universitaet Muenchen, Maximus-von-Imhof Forum 2, 85354 Freising, Germany Author Carine, Mark A. Department of Life Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK Author Harris, David J. https://orcid.org/0000-0002-6801-2484 Royal Botanic Garden Edinburgh, 20 A Inverleith Row, Edinburgh EH 3 5 LR, UK Author Scotland, Robert W. Department of Plant Sciences, South Parks Road, University of Oxford, OX 1 3 RB, UK robert.scotland@plants.ox.ac.uk text PhytoKeys 2015 2015-06-18 51 1 282 http://dx.doi.org/10.3897/phytokeys.51.7104 journal article http://dx.doi.org/10.3897/phytokeys.51.7104 1314-2003-51-1 E76E3938E216FF804849B803C469FE14 576310 132. Convolvulus ammannii Desr., Encycl. [Lamarck et al.] 3: 549. 1792. (Desrousseaux 1792: 549). Type. RUSSIA, Siberia, Patrin (holotype P [Herb. Lam.]!). Description. Grey-sericeous perennial herb with thick woody taproot; stems short, decumbent or weakly ascending, more or less herbaceous, to 12 (-22) cm long. Leaves sessile, 0.7-3 x 0.15-0.5 mm, linear or linear-oblanceolate, obtuse, tapering at the base. Flowers pedunculate from the axils of leaf-like bracts or, rarely, terminal only; peduncles 0.4-2.2 cm, 1-flowered; bracteoles, 4-13 x 0.5 mm, linear; pedicels 1-6 mm, often bent or curved; outer sepals 4.5-6 x 2-2.5 mm, ovate, abruptly narrowed and drawn out to an obtuse apex, the inner sepals much broader, c. 7 x 4 mm; corolla 0.8-1.3 cm long, white or very pale pink, very obscurely lobed, midpetaline bands pilose, terminating in a blunt tooth; ovary and style pilose; style divided c. 3 mm above base, stigmas c. 3 mm long. Capsule pilose at apex only; seeds smooth, pubescent. Figure 17 : 27-33. Distribution. Northern China and Manchuria ( Sino-British Qinghai Expedition (1997) 1006, Rock 13233); Korea (?); Mongolia ( Potanin s.n.. [18/8/1886], Pipe-Wolferstein & Phillips 37); Turkmenistan ( Schipczinsky 341); Kazakhstan ( Kossinsky 884, Karamisheva et al. 5872); Uzbekistan ( Kutscherovskaya 426); Russia: Siberia ( Timochina & Pashchenko 7544, Maltzev 3764a). Very common in southern Siberia.