Bulb:
1. It is a modified underground stem.’
2. It is small cone or disc-like structure.
3. It is a condensed shoot.
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4. It contains concentric whorls of fleshy scales covered by few dried scales. Lateral buds are present in the axil of fleshy leaves and terminal buds at the apex.
Bulbil:
1. It is a modified aerial stem
2. It is a multicellular and globular structure.
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3. A vegetative or floral bud in the axil of a leaf is modified into bulbil.
4. It contains few buds which give rise to aerial shoot.