Convolvulus tricolor subsp. cupanianus (Todaro ex Batt. and Trab.) Cavara & Grande, Bull. Soc. Bot. Ital. 1925: 104. 1925. (Cavara & Grande 1925: 104)

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 : 119-120

90b. Convolvulus tricolor subsp. cupanianus (Todaro ex Batt. and Trab.) Cavara & Grande, Bull. Soc. Bot. Ital. 1925: 104. 1925. (Cavara & Grande 1925: 104)

Convolvulus tricolor var. cupanianus Todaro ex Batt. & Trab., Fl. Synop. Alg. Tun. 230. 1905. (Battandier and Trabut 1905: 230). Type. None specified.

Convolvulus tricolor var. heterocalyx Maire, Bull. Soc. Hist. Nat. Afrique N. 28: 369. 1937. ( Maire 1937: 369). Type. ALGERIA, between Affreville and Miliana, Maire s.n. (holotype AL?; isotype MPU003792!).

Type.

ITALY, Sicily, "in campis argillosis-Palermo," Todaro s.n. (lectotype FI!, sheet with label headed 'Todaro Flora Sicula Exiccata’ annotated "Comp da Todaro in Gen 1864", designated here).

Distinguishing features.

The upper green part of the sepals is acuminate and longer than the lower colourless part.

Distribution.

Central Mediteranean: Malta; Sicily; Morocco (Pitard 1802); Algeria (Choulette 163, Faure s.n. [7/6/1929]); Tunisia (Rico 1888, Pitard s.n. [3/1909]).

Notes.

Todaro never provided a description for Convolvulus cupanianus and the epithet was first validated at varietal level by Battandier and Trabut (1905) with a brief (and misleading) description in a key. This validation was overlooked by Sa’ad (1967).