As a result of natural or artificially induced mutations, or viral infections, some plants of my collection have abnormal blooms and sometimes monstrous vegetative forms.
Here are links towards some of these plants:
The list is not exhaustive.
SCHLUMBERGERA (ZYGOCACTUS) 'ENIGMA' (mutation)
SCHLUMBERGERA (ZYGOCACTUS) x 'ASPEN' (artificial mutation)
x APOROPHYLLUM x 'HELENA' (plant may be infected by a virus)
EPIPHYLLUM x 'LETTY MAY' (plant infected by a virus)
DISOCACTUS KIMNACHII (?) (plant may be infected by a virus)
EPIPHYLLUM GUATEMALENSE f. MONSTROSA (mutation ?)