Question

When getum is not in flowering plant it is easily mistaken for a ?

Answer 1

Answer:

Gnetum is easily mistaken for a dicot plant unless it is in flowering or fruiting stage. The plant body is differentiated into root, stem and leaves.

Gnetum resembles very much in its charac­teristics to an angiosperm than a gymnosperm. Based on the studies of 58 characteristics, Gnetum shares more than 60% of the characte­ristics with angiosperm and about 30% characte­ristics with gymnosperm. Gnetum is easily mistaken for a dicot plant unless it is in flowering or fruiting stage. The plant body is differentiated into root, stem and leaves.

External Morphology:

Gnetum shows a typi­cal tap root system which is profusely branched. The mature roots show normal secondary growth.

Internal Structure:

Internally, the root of Gnetum resembles the root of angiosperm. The root is differentiated into the outermost layer, epidermis, multilayered cortex and diarch vas­cular cylinder. The cortex consists of polygonal or oval-shaped parenchymatous cells containing starch grains. The thick-walled fibre cells are often present in the cortex. A single-layered endodermis encircles a multilayered pericycle.

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