Question

Write note on Sporophyte of Osmundales.

Answer 1

Hey mate

The Protoleptosporangidae or the Osmundidae comprising of the single order Osmundales with the single family Osmundaceae is taken out of the Leptosporangiates as proposed by Hirmer (1927) as it is not truly leptosporangiate.

The Osmundales is a very ancient order represented by Thamnopteris and Zalesskya from late Permian and by Osmundites itself from Jurassic onwards.

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Answer 2

Osmunda, the royal fern is a common member of the green house. It is commonly cultivated in gardens for its beautiful, attractive, lush green foliage. Smith (1955) mentions about 12-14 species as belonging to this genus.

Panigrahi and Dixit (1969) have reported four species of Osmunda from India. These are O.cinnamomea, O.claytoniana, O.japonica and O.regalis. O.claytoniana is found growing in Kedarnath at an altitude of about 10,000 ft.

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