Which of the following is known as the 'resurrection plant'?

Apical growth of the lower vascular plants takes place by an apical cell. This cell is generally pyramidal. Though four-sided in shape,it is often referred to as a three-sided cell because

In which of the following plant groups is a haplo-diplontic life cycle observed?

Compared with the gametophytes of the bryophytes,the gametophytes of vascular plants tend to be

The formation of a sporophyte (fern) from a gametophyte (prothallus) without fertilization is known as .......... .

Give detailed information about pteridophytes.