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 115. Convolvulus grantii Balf.f., Nat. Hist. Sokotra 524. 1903. (Forbes 1903: 524). Type. SOCOTRA, Abd al Kuri Island, Ogilvie-Grant exped. 13, 45, 46 & 50 (syntypes E!, LIV). Description. Herb with thickened woody taproot and a basal rosette; stems ascending to c. 30 cm, vegetative parts sericeous and with some spreading hairs. Leaves petiolate, dimorphic; rosette leaves 3.5-4.5 x 0.7-1.4 cm. obovate to oblanceolate-spathulate, obtuse to acute, margin entire to undulate, base attenuate onto the petiole; stem leaves 0.3-1.5(-3) x 0.2-1 cm, acute, oblanceolate, oblong or elliptic, margin deeply sinuate, base attenuate; petioles 2-5 mm long. Flowers solitary, pedunculate; peduncles c. 3 mm long; bracteoles 2 x 0.75 mm, linear; pedicels c. 3.5 mm long; outer sepals 4-4.5 x 2-2.5 mm, ovate, acute or shortly acuminate; corolla 10-12 mm long, white or pinkish, lobed with broadly triangular lobes, midpetaline bands pilose; ovary glabrous; style glabrous, divided c. 2.5-3 mm above base; stigmas 4 mm long. Capsule glabrous; seeds glabrous. [ Miller and Morris 2004 : 517] Distribution. Endemic to Abd al Kuri Island in the Socotra archipelago ( Paulay 1899, Smith & Lavranos 660; Miller et al. 19032). Notes. Very distinct because of the rosette habit and small, sinuately-lobed stem leaves. The corolla is slightly larger than in Convolvulus sarmentosus and Convolvulus hildebrandtii . It is the most herbaceous of the three species. Miller and Morris (2004 : 517) suggest that this species is an annual but this seems to be an error.