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
19.
Convolvulus pitardii Batt., in Pitard, Explor. Sci. Maroc, Bot. 74. 1913. (Pitard 1913: 74).
Figure 5, t. 31-38.
Type.
MOROCCO, Oued Cherrat,
C.-J. Pitard
2977 (holotype P00332177!).
Description.
Perennial herb with stout somewhat woody rootstock from which arise various short decumbent, subglabrous, pubescent to pilose stems to 50 cm. Leaves petiolate, 0. 8-3.2
x
7.5-3.5 cm, ovate-deltoid or reniform, rounded to obtuse, margin undulate to coarsely serrate, base cordate, usually shortly and softly tomentose-sericeous but sometimes with longer hairs, occasionally subglabrous; petioles 0.5-0 7 cm, often flexuose. Flowers solitary, borne on axillary peduncles; peduncles 0-1 cm; bracteoles 2.5-7 mm, filiform; pedicels 1-8.5 cm, commonly flexuose and somewhat deflexed in fruit; calyx in flower clearly longer than broad, sepals 4.5-9
x
3-6 cm, lanceolate to linear-oblong, acute to apiculate forming a narrow calyx, the inner sepals broader; corolla 2.2-3(-4) cm long, pink with a darker centre, midpetaline bands sericeous near apex; filaments glandular below; ovary glabrous; style glabrous, divided c. 7 mm above base; stigmas 3-4 mm. Capsule glabrous; seeds finely tuberculate. [
Sa'ad
1967
: 239]
Notes
.
Distinguished from
Convolvulus vidalii
and
Convolvulus glaouorum
by the narrow calyx (lanceolate in outline) and the narrow sepals which are much longer than broad. This species is divided into two varieties: