A teacher showed two cones of Pinus and asked to identify them as male and female. Suggest any four points, which can be used during this identification.
Differences between male and female cones of Pinus, which can help in their identification are as follows
| Pinus Male Cone | Pinus Female Cone |
|---|---|
| Small in size. | Larger in size. |
| They arise in the axil of scale of leaves. | They arise in the axil of scale of leaves on long branches. |
| They consist of microsporophylls. | They consist of megasporophylls. |
| Microsporophylls bear two microsporangia on | Megasporophyll has two naked ovules on the |
| vertical side. | dorsal side. |