book:

• Scutellum (A) is the single, large, shield-shaped cotyledon of monocot seeds (like grasses/maize) [Sources 79, 234].
• Non-albuminous (B) seeds are those where the endosperm is completely consumed during embryo development; Groundnut is a specific example given .
• Perisperm (D) refers to the residual, persistent nucellus found in seeds like black pepper and beet .
• Epiblast (C) represents the rudimentary second cotyledon found in some grass embryos (standard biological context alongside scutellum).