A longitudinal section (LS) is a vertical cut that shows the internal structure of the flower from top to bottom, helping in the study of floral anatomy.
| List I | List II |
|---|---|
| A. Scutellum | II. Cotyledon of Monocot seed |
| B. Non-albuminous seed | IV. Rudimentary cotyledon |
| C. Epiblast | III. Groundnut |
| D. Perisperm | I. Persistent nucellus |