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
119.
Convolvulus leptocladus Boiss., Diagn. Pl. Orient. 7: 25. 1846. (Boissier 1846: 25).
Figure 16, t. 31-36
Type.
IRAN,
Aucher-Eloy
4942 (holotype G; isotypes K!, LE!, P!, W!).
Description.
Much-branched fastigiate undershrub to c. 40 cm, the branches usually arising at right angles to the main stem, adpressed pubescent, hairs resembling cystoliths. Leaves commonly absent, sessile, 1. 5-2.5 cm, linear to linear oblanceolate, acute, entire, attenuate at base, subglabrous or with few adpressed hairs. Flowers 2-3 in very lax axillary dichasial cymes borne on rigid branches, somewhat spinescent after flowers have fallen; peduncles 1.5-2 cm; bracteoles 1 mm, oblong-elliptic, minute; pedicels 2-8 mm, very fine; sepals 3-4
x
2 mm, obovate, shortly mucronate, uniformly pale green, adpressed pubescent, inner sepals slightly longer and broader; corolla 11-14 mm long, white, weakly lobed, midpetaline bands pilose; ovary glabrous; style glabrous, divided c. 3 mm above base, stigmas 4 mm. Capsule glabrous; seeds brown, glabrous, smooth. [
Sa'ad
1967
: 99;
Nowroozi 2002
: 45 (plate), 102 (map)]
Distribution.
Endemic to southern Iran (
Leonard
5921,
Grey-Wilson & Hewer
127,
Rechinger et al
. 3389,
Scharif
832E,
Fasy
337,
Foroughi
10671)
Notes.
The very short pubescent sepals are a good character as are the very slender peduncles arising at or near 90°. There seems to be some variation in inflorescence branching, sometimes clearly dichasial (
Grey-Wilson & Hewer
127), sometimes almost racemose (
Leonard
5921).