A Transverse section of stem is stained first with safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?

A piece of wood having no vessels (trachea) must belong to

1. teak

2. mango

3. pine

4. palm

14. Fibres are likely to be absent in

(a) secondary phloem

(b) secondary xylem

(c) primary phloem

(d) leaves

A vesselless piece of stem possessing prominent sieve tubes would belong to
1. Pinus
2. Eucalyptus
3. Grass
4. Trochodendron