Step 1 : Introduction to the question "2. For that minor rash on your skin, use this cream, made with the extract of the seed-bearing part of pot marigold, consisting of reproductive organs surrounded by a brightly colored corolla and a green calyx. I mean the..."
...1. stems 2. roots 3. bark 4. flowers The corolla refers to the petals and the calyx refers to the green, leaflike things that enclose the petals. The reproductive organs would be the stamens (male) and the carpels (female). Pot marigold is Calendula oficinalis. Made into a compound or cream, naturopaths may suggest the flowers for minor burns, diaper rash, eczema or bee stings. A tincture is used internally for indigestion and externally for earaches. Supposedly an infusion of the flowers is also good for fever.