Question

Spore producing organ in Adiantum is
a) strobilus
b) cone
c) sori
d) rhizome​

Answer 1

Answer:

a. Strobilus was answer .

Explanation:

I Hope it is helps you ........

Answer 2

Answer:

Spore producing organ in Adiantum is Sori.

Explanation:'

• Adiantum is called "Maidenhair fern" as the leaves are shiny black rachis of the leaves.

• It grows ubiquitously ( wherever there is moisture and shade).  
• Vegetative reproduction is by buds, that are at the tip of the leaf.
• Sori are born at the distal end of the pinnae, but not exactly marginal.
• they are a little behind the tip of the veins.
• sorus bearing margin of the leaf in curls forming the false inducium.
• In sori, paraphyses may be present in between the sporangia (A.rubellum, A.tenerum)
• Sori is a yellow-brown cluster that produces spores.  
• Reproduction in Adiantum occurs through the production of spores, it is homosporous.
• Adiantum sorus is marginal, a protective membranous structure called false inducium which is formed by the reflex margins of the pinnae.
• The development of sporangium in Adiantum fern is leptosporangiate.
• Adiantum sorus does not have a distinct shape and is a mixed sorus.

Hence, the spore-producing organ in Adiantum is the sori.