B.Sc. S4 Marsilea Part 1

Marsilea comes under which family of Pteridophytes?

(a)  

Specialized spore producing structure found in Marsilea

(a)  

Select all the correct features of leaves of Marsilea

• Petiolate

• Circinate vernation in young leaves

• Compound

• Entire or Dentate

• Sessile

Stele of Marsilea petiole

• Plectostele

• Protostele

• Siphonostele

• Eustele

One cell thick septa found in cortex of Marsilea petiole is called

(a)  

Select all the features of Marsilea roots

• Adventitious

• Xylem is diarch & exarch

• Xylem is diarch & endarch

• Outer aerenchymatous region is absent

• Possess metaxylem and protoxylem elements in the centre

In aquatic species of Marsilea, the stomata is restricted only to the (a)   epidermis

Select only the correct options

• Marsilea is an aquatic pteridophyte

• Stem of Marsilea is called as a rhizome

• Endodermis of petiole has casparian bands

• Vascular bundles are concentric in leaves

• Trabaculae is present in both rhizome and petiole

Stele of Marsilea rhizome is

• Amphiphloic solenostele

• Amphiphloic siphonostele

• Amphiphloic eustele

• Actinostele

Select all the xerophytic species of Marsilea

• M. hirsuta

• M. minuta

• M. vestita

• M. condensata

• M. rajasthanensis