Angiosperms-Asteraceae [IFS (Forest Services) Botany]: Questions 1 - 4 of 4

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Question 1

Appeared in Year: 2013

Describe in Detail Subjective▾

Comment critically on the following: Advanced features of Asteraceae (Paper 1, Section B)

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Explanation

Advanced Features of Asteraceae

  • Herbaceous nature of the majority taxa.
  • Aggregation of flowers into heads or capitula with attractive ligulate florets and dense tubular disc florets.
  • The capitula are surrounded by conspicuous involucral bracts.
  • The construction of capitula enables a single visit of insect can help in pollinating several florets, there …

… (151 more words) …

Question 2

Appeared in Year: 2018

Describe in Detail Subjective▾

How do you justify Asteraceae as a phylogenetically advanced family in dicotyledons?

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Explanation

Asteraceae

  • Family is named after its flower shape that is star shape.
  • It contains 950 genera and 22,000 species.
  • It is 10% of total angiosperm population.
Advanced Characters

Advanced Characters

  • The family Asteraceae also known as Compositae.
  • It is regarded as the most advanced and highly evolved.
  • They are considered to occupy the highest position in the p…

… (182 more words, 20 figures) …

Question 3

Appeared in Year: 2021 (IAS)

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Discuss the advanced features of Asteraceae and Orchidaceae.

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Explanation

Advanced Features of Asteraceae

The plant kingdom՚s top rank is held by the Asteraceae family, which is believed to be the most sophisticated and highly developed.

  • It has the largest number of taxa (950) and species (20000) .
  • This family՚s members are found all over the planet.
  • Plants that are mostly herbaceous annuals, biennials, or perennials.
  • Exstipu…

… (171 more words) …

Question 4

Appeared in Year: 2023

Describe in Detail Subjective▾

Describe the floral features of the family Asteraceae with floral formula and floral diagrams. Explain why this family is considered as highly evolved among Angiosperms. (Paper-1)

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Explanation

Floral Formula and Floral

Asteraceae, commonly known as the Aster family or Compositae, is one of the largest and most economically important families of flowering plants. The family is characterized by its unique inflorescence structure known as the “capitulum” or “head,” which appears as a single flower but is actually a cluster of numerous tiny f…

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