Convolvulus rottlerianus subsp. rottlerianus

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 : 134-135

110a. Convolvulus rottlerianus subsp. rottlerianus Figure 15, t. 8-16

Convolvulus gilbertii Sebsebe, Kew Bull. 54: 74. 1999. ( Sebsebe 1999: 74). Type. Ethiopia, Gilbert et al. 8290 (holotype ETH; isotype K!).

Distinguishing features.

Outer sepals adpressed pilose. [ Austin and Ghazanfar 1979: 27, 25 (plate)]

Distribution.

India, (Rottler s.n. [18/11/1795], Perrotet 888, Wight 2234, 2293, Talbot 2177, Deane 107, Beddome 5608/9), Pakistan, Ethiopia ( Corrá 8, Friis et al. 3688).

Notes.

Convolvulus rottlerianus has only recently been found in Ethiopia and is unknown in Iran and Arabia. Ethiopian material was described as a separate species, Convolvulus gilbertii , probably because the possibility of the occurrence of an Indian species was not considered. No difference between specimens from the two areas can be discerned. Little is known about the habitat of this subspecies in India but it is found in drier areas. In Ethiopia it is a rare plant of Acacia bushland.