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).