Convolvulus semhaensis (R.R.Mill) J.A.Luna & Carine, Phytotaxa 156(1): 51. 2014. (Luna et al. 2014).

Wood, John R. I., Williams, Bethany R. M., Mitchell, Thomas C., Carine, Mark A., Harris, David J. & Scotland, Robert W., 2015, A foundation monograph of Convolvulus L. (Convolvulaceae), PhytoKeys 51, pp. 1-282 : 132

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 × 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 × 1.5 mm, narrowly oblong-elliptic, densely pilose; pedicels 0.5 mm; outer sepals 6-6.5 × 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.