Convolvulus dryadum Maire, Bull. Soc. Bot. France 60: 253. 1913. (Maire 1913: 253).

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 : 106

71. Convolvulus dryadum Maire, Bull. Soc. Bot. France 60: 253. 1913. (Maire 1913: 253). Figure 10, t. 15-21

Type.

ALGERIA, Djebel Babor, Maire s.n. (holotype AL?; isotypes MPU005286!, P00417695!, P00417696!).

Description.

Perennial herb from a rhizomatous rootstock with branched trailing stems to at least 40 cm; stem and vegetative plants adpressed pubescent or (rarely) glabrous. Leaves petiolate, 2-5 × 1.5-3 cm, ovate-deltoid, apex obtuse, margin undulate to sinuate, base truncate to very shallowly cordate; petioles 0.3-0.8(-1.5) cm. Flowers solitary, axillary, pedunculate; peduncles 4-9 cm, often bent at apex; bracteoles 1-2 mm, filiform; pedicels 5-7 mm; outer sepals 9-10 × 4-5 mm, broadly elliptic, mucronate; inner sepals slightly larger c. 11 × 6 mm, somewhat scarious; corolla 2.5-3.1 (-4.5) cm long, white with dark centre, midpetaline bands pink, pubescent near the apex, unlobed but margin slightly undulate; filaments glandular; ovary glabrous, conical; style glabrous, divided c. 12-14 mm above base; stigmas 2-3 mm, stout. Capsule and seed not known. [ Sa’ad 1967: 223]

Distribution.

Djebel Tazekka and Rif Mountains of Morocco (Sennen & Mauricio 9471, Davis 54878, Ait Lafkih et al. 127) and Algeria.

Notes.

Distinctive because of the long pedunculate, solitary flowers, triangular, basally more or less truncate leaves and very long style.

A distinctive variety was described from Djebel Tazekka, an isolated massif in Morocco, by Sauvage and Vindt (1954: 31) based on the glabrous or subglabrous leaves and large corolla up to 4.5 cm in length. This " var. tazekkensis " (based on Guinet et al. 68) was never validly published but merits further investigation.