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.