Memers of psilophyta are commonly known as……
a) club mosses
b) horsetail
c) whisk ferns
d) spike mosses
Which of the following group of vascular plants sporophyte shows little organ differentiation?
a) Sub-Phylum Psilopsida
b) Sub-Phylum Lycopsida
c) Sub-Phylum Sphenopsida
d) Sub-Phylum Pteropsida
Explanation: the stem is differentiated into an underground rhizome and an aerial part and may bear rhizoids but no roots
Which of the following is/are the living genus/genera of Sub-Phylum Psilopsida?
a) Psilotum and Tmesipeteris
b) Rhynia
c) Cooksonia
d) all of these
Which of the following is/are the example/s of Sub-Phylum Psilopsida?
a) Psilotum and Tmesipeteris
b) Rhynia
c) Cooksonia
d) all of these
Which of the following vascular plants are also known as club mosses?
a) Sub-Phylum Psilopsida
b) Sub-Phylum Lycopsida
c) Sub-Phylum Sphenopsida
d) Sub-Phylum Pteropsida
Which of the following are the living genera of Sub-Phylum Lycopsida?
a) Lycopodium and Selaginella
b) Isoetes and Phylloglosum
c) Lepidodendron and Sigillarria
d) both a and b
