Key torelated species .

– The new species has been added to the key presented by BLANCA (1998). Iberian populations of C. integerrimus are considered here as belonging to C. pyrenaicus, according to the treatment of SENNIKOV (2009):

1. Petals patent at anthesis, white; fruit glabrous .................. ................................................................... C. granatensis

1a. Petals erect at anthesis, white, pink or reddish; fruit glabrous or hairy............................................................................ 2

2. Calyx lobes glabrous or hairy only on the margin; fruit reflexed, glabrous; inflorescence (1-)2-3(-4)-flowered ..... ............................. C. pyrenaicus [ C. integerrimus group]

2a. Calyx lobes hairy or tomentose; fruit erect, hairy; inflorescence 3-14 flowers ..................................................... 3

3. Petals white; leaves adaxially glabrescent; fruit pyriform ................................................................. C. majoricensis

3a. Petals pink or pale rose (sometimes abaxially reddish); adaxial surface of leaves hairy; fruit globose to subglobose ................................................................... C. tomentosus