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Question
Which one of the following is not found in Selaginella?
Which one of the following is not found in Selaginella?
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Solution
The correct option is C Homospory
Sporangia of Selaginella contain just four very large yellow spores. These four are the result of meiosis from a single sporocyte. The spores are called megaspores because of their large size. This makes the sporangium a megasporangium. BecauseSelaginellahas both microspores and megaspores, the plant is calledheterosporous. They have a different type of leaf so it has heterophylly. The leaf bears on its upper surface near its base a small, membranous, tongue-like outgrowth called the ligule. So, the correct answer is option C.
Sporangia of Selaginella contain just four very large yellow spores. These four are the result of meiosis from a single sporocyte. The spores are called megaspores because of their large size. This makes the sporangium a megasporangium. BecauseSelaginellahas both microspores and megaspores, the plant is calledheterosporous. They have a different type of leaf so it has heterophylly. The leaf bears on its upper surface near its base a small, membranous, tongue-like outgrowth called the ligule. So, the correct answer is option C.
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