For the preparation of food, most plants make use of a special substance called chlorophyll through which water and mineral salts are absorbed from the soil, CO2 from the air and are changed into starches, needed for the plant’s growth.
This chlorophyll gives the plants their green colour. Some plants like fungi do not have chlorophyll and are to grow in the dark. Fungi grow in caves and underground places.
These plants (i.e. fungi) depend on organic substances produced by other plants. Most of the fungi do not have chlorophyll and hence are not green in colour.
Below Fungi info from Wikipedia (Read More):-
A fungus (pronounced /ˈfʌŋɡəs/) is any member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. The Fungi (pronounced /ˈfʌndʒaɪ/ or /ˈfʌŋɡaɪ/) are classified as a kingdom that is separate from plants and animals. One major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants, which contain cellulose. These and other differences show that the fungi form a single group of related organisms, named the Eumycota (true fungi or Eumycetes), that share a common ancestor (a monophyletic group). This fungal group is distinct from the structurally similar slime molds (myxomycetes) and water molds (oomycetes). The discipline of biology devoted to the study of fungi is known as mycology, which is often regarded as a branch of botany, even though genetic studies have shown that fungi are more closely related to animals than to plants. Fungi reproduce via spores, which are often produced on specialized structures or in fruiting bodies, such as the head of a mushroom.
http://en.wikipedia.org/wiki/Fungi
