(a) Etaerio of achenes - (iv) Rubus
- An etaerio is a type of fruit that comes from multiple ovaries in a single flower.
- Achenes are a type of dry, indehiscent fruit that contains a single seed (e.g., sunflower seeds).
- Rubus (e.g., raspberry, blackberry) produces an etaerio of achenes, where multiple achenes are clustered together to form a single fruit.
(b) Etaerio of berries - (i) Annona
- Annona (e.g., custard apple, soursop) produces an etaerio of berries, where multiple berries are fused together to form a single fruit.
(c) Etaerio of drupes - (iii) Lotus
- A drupe is a type of fruit that has a hard stone or pit surrounding a single seed (e.g., peach, plum).
- Lotus produces an etaerio of drupes, where multiple drupes are clustered together to form a single fruit.
(d) Etaerio of follicles - (ii) Calotropis
- A follicle is a type of dry, dehiscent fruit that splits open to release multiple seeds (e.g., milkweed).
- Calotropis (e.g., giant milkweed) produces an etaerio of follicles, where multiple follicles are clustered together to form a single fruit.
