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
107.
Convolvulus semhaensis (R.R.Mill) J.A.Luna & Carine, Phytotaxa 156(1): 51. 2014. (Luna et al. 2014).
Seddera semhaensis
R.R.Mill, Kew Bull. 64: 231. 2009. (Sebsebe et al. 2009: 231). Type. SOCOTRA, Semha Island,
Miller
11461A (holotype E, not seen).
Type.
Based on
Seddera semhaensis
R.R.Mill
Description.
Grey undershrub to 50 cm, branches straight and rigid, densely grey canescent when young, becoming more sparsely hirsute with age and reddish-brown in colour. Leaves shortly petiolate, 2.5-8
x
0.5-1.5 mm, narrowly lanceolate, subacute, cuneate at base, densely grey-sericeous; petioles 0.5-1 mm. Flowers solitary, axillary, subsessile; peduncle absent; bracteoles 4-5
x
1.5 mm, narrowly oblong-elliptic, densely pilose; pedicels 0.5 mm; outer sepals 6-6.5
x
1.5 mm, oblong, acuminate; inner sepals shorter, scarious; corolla 7-8.5 mm long, white faintly flushed pink, midpetaline bands long-sericeous to base; filaments glandular at base; ovary pilose; style divided 4 mm above base, stigmas 0.75 mm, obovoid. Capsule pilose at apex; seeds glabrous.
Distribution.
Endemic to Semha Island in the Socotra islands of Yemen.
Notes.
Miller
12511, the only specimen we have seen of this species, has a glabrous ovary and style.The sepals are shorter and narrower than in
Convolvulus kossmatii
but the differences are not very great. These two species are very close and may prove to be conspecific.