Question

The inflorescence present in Euphorbia is
(a) Cyathium
(b) Capitulum
(c) Helicoid cyme
(d) Verticillaster

Answer 1

Hint: This is a type of specialized false flower that looks like a single flower, forming the inflorescence of plants belonging to the genus Euphorbia.

Complete step by step answer:
The inflorescence present in the euphorbia flower is Cyathium type. The Cyathium inflorescence shows the presence of achlamydeous flowers that are flowers without a perianth. The inflorescences of the second order are simple cymes which consist of one central and two lateral cyathia.
So, the correct answer is 'Cyathium'.

Additional Information: These plants (Euphorbia) have showy, red- colored, modified leaves that are not petals although they look like flower parts; they are not even parts of the true flower.
- They only surround clusters of small, greenish, cup- shaped structures called cyathia.
- Each cyathium is taken into account to be an inflorescence or inflorescence containing unisexual, apetalous male and feminine flowers.
- The male flowers that are reduced to one red stamen occur in clusters, whereas the feminine flower consists of one ovary or pistil on a stalk or pedicel.
- Capitulum bears many sessile and little florets. Here the most axis of the flower becomes flat and called a receptacle. It's a kind of racemose inflorescence. An example is sunflowers.
- Helicoid cyme: during this type each flowering branch gives rise to at least one lateral branch that's coiled just like the shell of a snail and after cooling it's expanded.
- Verticillaster may be a cluster of sessile or subsessile flowers borne on a dichasial cyme but it ends in a monochasial cyme within the sort of condensed whorl on either side of the node. It's kind of cymose inflorescence. Example: Tulsi.

Note:
- Cyathium looks like a single flower but it encloses a single female flower and several male flowers.
- Each male flower is represented by stamen and a female flower is represented by a pistil.
- Each cyathium is taken into account to be an inflorescence or inflorescence containing unisexual, apetalous male and feminine flowers.