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
141.
Convolvulus argyracanthus Rech.f., Aellen & Esfand., Anz.
Oesterr
. Akad. Wiss., Math.-Naturwiss. Kl. 87: 303. 1950. (Rechinger et al. 1950: 303).
Figure 18, t. 34-41
Type
.
Iran,
K.H. Rechinger et al.
3228 (holotype W!; isotypes E!, G, K!).
Description.
Grey spiny undershrub to 60 cm, stems grey-sericeous, spinescent, lateral spines formed from dead peduncles present near branch tips. Leaves sessile, 1-1.7
x
0.3-0.6 cm, obtuse, margin entire, base attenuate, grey-sericeous. Flowers solitary (or, fide
Sa'ad
(1967)
, 2-3 in axillary diachasia), axillary, pedunculate; bracts leaf-like; peduncles 3-4 mm, woody; bracteoles c. 1.5 mm, linear, obtuse; pedicels 1.2 mm long, bent at an angle to the peduncle; sepals all similar, 3-6
x
2-4 mm, obovate, mucronulate, abruptly narrowed at base, adpressed-pilose; corolla 1.6-2.2 cm, white with slight bluish flush, weakly lobed, midpetaline bands pilose; ovary pilose, style pubescent, divided c. 7 mm above base, stigmas 3 mm; capsule and seed not known. [
Sa'ad
1967
: 63;
Rechinger 1963
: f. 2]
Distribution.
Iran: Kerman, Fars (
Davis & Bokhari
56223,
Grey-Wilson & Hewer
301,
Popov
51/75,
Foroughi
10731).
Notes.
Resembles
Convolvulus spinosus
but most easily distinguished by the obovate leaves and all five sepals equal in size and shape.