Compare the strobilus of lycopodium and selaginella
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Plants terrestrial herbs or epiphytes.
2. Stem is prosterate but the apex is upturned, densely covered with hairs, produces root branches.
3. Roots adventitious, produced from the older parts of the stem.
4. Leaves small, narrow, arranged densely and spirally on the stem, eligulate.
5. Sporophylls are similar to foliage leaves and aggregated at the tips of the branches forming strobilus.
6. Sporongia arises on the abaxial surface of the sporophylls or in their axils.
7. Spores all alike, numerous and small.
Hope it's ryt helpful for you.
2. Stem is prosterate but the apex is upturned, densely covered with hairs, produces root branches.
3. Roots adventitious, produced from the older parts of the stem.
4. Leaves small, narrow, arranged densely and spirally on the stem, eligulate.
5. Sporophylls are similar to foliage leaves and aggregated at the tips of the branches forming strobilus.
6. Sporongia arises on the abaxial surface of the sporophylls or in their axils.
7. Spores all alike, numerous and small.
Hope it's ryt helpful for you.
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Answer:
The key difference between Lycopodium and Selaginella is that Lycopodium is a clubmoss which is homosporous (one type of spore) while Selaginella is a spike moss which is heterosporous (two distinct types of spores). They produce spores for reproduction.
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