| I. Casuarina |
| II. Vernonia |
| III. Colocasia |
| IV. Ficus |
A) I, II
B) II, III
C) III, IV
D) I, IV
Correct Answer: C
Solution :
Colocasia and Ficus plants have inflorescences with male, female and sterile flowers. In Ficus, the receptacle becomes pear-shaped and contains a hollow central cavity and a hairy opening called ostiole at their anterior side. The hollow cavity bear many male flowers at the ostiole side and female flowers at the basal side-between these two types of flowers, sterile flowers with short style are situated. These sterile flowers are called gall flowers- Colocasia inflorescence consist a spadix subtended by a persistent spathe, female flower at the base of spadix, males at apex with sterile flowers between them.
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