Question

Which of the following plants has 'hidden reproductive organs'?
1. Ipomoea
2. Marsilea
3. Pinus
4. Deodar

Answer 1

Correct Answer - Option 2 : Marsilea

​The correct answer is Marsilea.

• Marsilea plants have hidden reproductive organs.
• In the Pteridophyta group, the plant body is differentiated into roots, stem, and leaves and has specialized tissue for the conduction of water and other substances from one part of the plant body to another. Some examples are Marsilea, ferns, and horsetails.
• The thallophytes, the bryophytes, and the pteridophytes have naked embryos that are called spores. The reproductive organs of plants in all these three groups are very inconspicuous, and they are therefore called cryptogame, or those with hidden reproductive organs.
• Marsilea is a genus of approximately 65 species of aquatic ferns of the family Marsileaceae.
• The name honours Italian naturalist Luigi Ferdinando Marsili (1656–1730).

 

Plants	Description
Ipomoea	Ipomoea batatas or sweet potato Using its flowers, which contain both male and female reproductive organs, the sweet potato plant undergoes sexual reproduction. Sexual reproduction occurs when genetic material from both male and female individuals comes together to create a new individual.
Pinus	Pinus reproduces sexually. Pinus is mono­ecious, but the male and the female cones are produced on separate branches of the same plant. The male cones develop on the lower branches, while the female cones are formed on the upper branches.
Deodar	Deodar Cedar or Deodar tree (Family- Pinaceae) is a monoecious species – that means it has male and female flowers (cones or strobili) on the same tree. Male cones are mainly bearing on the lower branches, while the female cones are at the ends of the highest.