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
13
.
Convolvulus cassius Sam. ex Rech.f., Ark. Bot., a.s., 1: 314. 1950. (Rechinger 1950: 314).
Figure 4, t. 10-16.
Type
.
SYRIA,
Dinsmore
10127 (holotype S; isotype K!).
Description.
Twining perennial herb, stems angled, glabrous. Leaves petiolate, 3-4
x
2-2.5 cm, ovate-deltoid, obtuse, margin undulate to crenate or weakly lobed, ciliate, base cordate and attenuate onto the petiole, beneath thinly pubescent. Flowers 1-3 in pedunculate axillary cymes; peduncles 4-14 cm, glabrous; bracteoles linear, acute, 6-8
x
1 mm, ciliate; pedicels 0.8-1 cm, thinly pilose with stiff spreading hairs; outer sepals 9-10
x
5-6 mm, oblong-obovate, slightly pandurate, abruptly constricted at apex into a mucro, the apical portion dark-coloured, pilose with stiff brown hairs; inner sepals glabrous, membranous; corolla 3.2 cm, yellow, unlobed, midpetaline bands thinly pilose towards the apex; filaments glandular below; ovary pilose; style thinly pilose, divided 5 mm above the base; stigmas 2 mm. Capsule and seeds not seen. [
Sa'ad
1967
: 222]
Distribution.
A rare and very local species of the Syrian border with Turkey, known from a handful of collections: Turkey (?); Syria (
"Latakia"
fide
Parris 1978
: 216;
Samuelson
5265).
Notes.
Resembling
Convolvulus betonicifolius
and similar species but leaves glabrous except for the ciliate margins, which are crenate up to the apex.