(i) Acalypha indica:
1. Family - Euphorbiaceae
2. The paste obtained from the leaves is used to cure the burns on the skin.
3. The juice of this plant leaves is mixed with lemon juice to cure ringworm.
(ii) Aegle marmelos: (Vilyam)
1. Family - Rutaceae
2. Unripefruit is used to treat indigestion.
3. It is used to cure chronic, diarrhoea and dysentry.
(ii) Solanum trilobatum: (Theoduvalai)
1. Family - Solanaceae
2. Leaves and fruits of this plant cure cough and cold,
3. It is widely used in the treatment of tuberculosis and bronchial asthma.
(iv) Phyllanthus amarus:(Keechanelli)
1. Family - Euphorbiaceae
2. The entire plant is used for the treatment of jaundice.
3. It gives additional strength to human liver and used to treat other liver disorders
(v) Aloe vera: (Sothu Katrazhai)
1. Family - Liliaceae
2. Leaves of this plant is used to cure piles and inflammations on the skin.
3. It cures peptic ulcer.

i) Woods of many conifers are used in the paper industries Eg: pinus, Agathis.
ii) Conifers are the sources of softwood for construction, packing and plywood industry Eg: Cedrus, Agathis.
iii) Turpentine is an essential oil used for paint preparation extracted from the resin of pinus
iv) It is also used medicinally for relief from pain and bronchitis etc.
v) Seeds of Pinus gerardiana are edible.
vi) Ephedrine is an alkaloid extracted from Ephedra. It cures asthma and respiratory problem.
vii) Araicaroa bidwillii is an ornamental plant.