Which of the following are the fossil genera of Sub-Phylum Lycopsida?
a) Lycopodium and Selaginella
b) Isoetes and Phylloglosum
c) Lepidodendron and Sigillarria
d) both a and b
In which of the following plants of lycopsida, ligule is absent?
a) Lycopodium
b) Phylloglosum
c) Lepidodendron
d) Isoetes
Explanation: ligule is a small outgrowth at the base of sporophylls to retain moisture
The vascular plants of belonging to Selaginella of Sub-Phylum Lycopsida comprise over……hundred species.
a) one
b) two
c) three
d) four
Which of the following vascular plants are also known as horse tails?
a) Sub-Phylum Psilopsida
b) Sub-Phylum Lycopsida
c) Sub-Phylum Sphenopsida
d) Sub-Phylum Pteropsida
Which of the following is/are the living plants of Sub-Phylum Sphenopsida?
a) Calamites
b) Equisetum
c) Sigillarria
d) both a and b
Which of the following is/are the extinct plants of Sub-Phylum Sphenopsida?
a) Calamites
b) Equisetum
c) Sigillarria
d) ferns
