Majority of the orchids are

Categorise the following plants into hydrophytes,halophytes,mesophytes,and xerophytes. Give reasons for your answers.
$(a)$ Salvinia $(b)$ Opuntia $(c)$ Rhizophora $(d)$ Mangifera

Colchicine:
$I.$ is obtained from $Colchicum \text{ } autumnale$
$II.$ is a cytokinesis inhibitor
$III.$ induces polyploidy
$IV.$ is obtained from $Fabaceae$ family
$V.$ Floral formula: $\oplus \text{ } \text{O} \text{ } P_{3+3} A_{3+3} G_{(3)}$
Which are the correct statements?

Select an incorrect match.

Which of the following is a submerged hydrophyte?

The starch grains found in latex are .........