Morphology of Flowering Plants Test - 1

Trapa (singhara) has modified roots which bear chlorophyll. Due to the presence of chlorophyll, they can perform the function of photosynthesis.

Lateral roots in plants arise from the permanent region. This region functions to anchor the plant firmly in the soil and to conduct the absorbed substance.

This is paired incorrectly, Cinchona has annulated roots. In these roots the fleshy adventitious roots possess a series of ring like outgrowths or swellings on its body.

Velamen are spongy tissues present in special hanging roots of vanda for absorbing atmospheric moisture.

In smilax, stipules are modified into tendrils.

Achyranthes flowers are sessile and borne laterally in acropetal succession. It is called spike inflorescence.

Stamens in the China rose are Monoadelphous i.e. they are fused together in a single bundle forming a staminal tube, Stamens are exerted because their length is greater than the petals,

Fruits of sunflower are one seeded with a seed coat and fruit wall developed from a bicarpellary, syncarpous and inferior ovary.

When the bracts are arranged in one or more whorls and they surround a cluster of flowers, the group of bracts is known as involucre. Such bracts are found in sunflower.

The expression G(3)_ means that flower has three fused carpels. If the carpels are fused the flower will have only one compound pistil.