Question

In Orchidaceae the third stigma is generally sterile forming a small beaked outgrowth known as
a)Gymnostegium
b)Rostellum
c)Column
d)Labellum​

Answer 1

Answer:

a option is the right answer

Answer 2

Answer:

B. Rostellum

Explanation:

Tricarpellary, syncarpous, ovary inferior, unilocular, parietal placentation, rarely trilocular and axile placentation (Apostasia); stigmas 3, of which 2 lateral are often fertile, the third stigma is sterile forming a small beaked outgrowth – the rostellum lying in the centre of column between the anther and fertile