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29/10/2020 10:57 am
Topic starter
Largest ovule in plant kingdom are found in
(a) Pinus
(b) Cycas
(c) Thuja
(d) Gnetum
1 Answer
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29/10/2020 10:58 am
(b) Cycas
Explanation:
Largest ovule in plant kingdom is found in Cycas. Female cone consists of megasporophylls. Each megasporophyll bears 2-12 reddish ovules in the middle fertile part. Ovules of Cycas are the largest, 6-7 cm in diameter.
The sperms of Cycas are also the largest (300 µm) in the biological world.