The dark green/black ones in the back are pablarno (sp), the light green short fat ones are pimento, and the long light greens are banana (sweet), the bells are a hybrid. I'll check on the types.
I tried Marconis two or three years and never had germination. Mind you, the seed were all from the same source. Sometimes, if possible, obtaining new seed from a different source is all that is needed to be successful. You can try another year.