Codiaeum variegatum Picturatum
Picturatum is frequently confused with Majesticum. The croton Picturatum has shorter leaves than majesticum and a red midrib on mature leaves.
REF: Brown, B. Frank 1995 Crotons of the world p.38
Type C, 1/2" x 12", - Long very narrow leaves. The new leaves are green which becomes dark red as leaves mature. The midrib is first outlined with yellow which becomes bright red as the leaves mature.
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.13.
Long, narrow leaves, yellow midrib; bright red with age.
REF: Reasoner's Tropical Nurseries inc, croton listing. Group 1, Common Varieties, p.2.