C. walkeriana 'Pendentive' no longer.

[Roy]

Extract from the July - Sept 2016 Orchid Registrations Docs just released. Can be read on-line.

Attribution of Cattleya ‘Pendentive’ The identity of the plant used as a grex parent and usually called Cattleya walkeriana ‘Pendentive’ has been the subject of much debate, and it transpires that the evidence suggests it is a selection from Cattleya x dolosa, a hybrid of Cattleya walkeriana x C. loddigesii. There are about 40 registered grexes currently listed as having Cattleya walkeriana ‘Pendentive’ as a parent, and at least a further 25 with C. walkeriana var. alba cultivars, apparently representing variously introgressed hybrids, which also segregate in the same clade as C. x dolosa in an analysis by Jin et al., (J. Japan Soc. Hort. Sci. 73(5): 496–502. 2004). These register entries have been changed to show Cattleya x dolosa as the parent instead. Genuine Cattleya walkeriana var. alba has no yellow on the lip; the yellow blotch is inherited from C. loddigesii. Breeding work has revealed that plants with a pale yellow colour on the lip near column are C. x dolosa. Cattleya x dolosa contains the following grexes: C. Angel Walker, C. Colorado Morado, C. Cosmo-Hiroto, C. Hallie Rogers, C. Heathii (1), C. Karin Martin, C. Little Angel, C. O’Brieniana, and C. Snow Blind