Convolvulus grantii Balf.f., Nat. Hist. Sokotra 524. 1903. (Forbes 1903: 524).

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 : 140

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 × 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) × 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 × 0.75 mm, linear; pedicels c. 3.5 mm long; outer sepals 4-4.5 × 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.