The synonym for Codiaeum variegatum C.I. Craigin is Madame Blanche .
This croton has a long, bright green leaf and a white zone along the midrib.
REF: Reasoner's Tropical Nurseries inc, croton listing. Group 1, Common Varieties, p.2.
Listed under Madame Blanche
Type combined of B&C, 1-1/4" x 14", - Ground color is bright. Midrib outlined white or cream and balance of leaf heavily marbled white or light cream.
REF: Paper prepared by Wm. A. Geiger in collaboration with Mr. Christian of the Christian Nursery, Mr. Van der Lean and Mr. George L. Peacock. p.12.