Historically Recognised Angiosperm Families (GATE - XL)
GATE - XL
Questions
Alangium is a small genus of flowering plants that belongs to the family Alangiaceae. All the 40 species belonging to this genus produce which of the following kinds of fruit?
- Durian
- Berry
- Drupe
- Samara
Which of the following statements about Calochortus nuttallii is false?
- It blooms in early summer.
- It has medicinal value.
- It is the state flower of Utah.
- It has three white petals.
Bottle trees are plants with a considerable girth. These plants belong to which of the following families?
- Bombacaceae
- Calochortaceae
- Aralidiaceae
- Alangiaceae
Plants of Mediterranean relict shrub family (Cneoraceae) are rich in
- quinine
- saponin
- tannin
- essential oils
Majority of maple plants produce their fruit crop in autumn. Which of the following species of maple produce their fruit crop in spring?
- Acer laurinum and Acer pseudoplatanus
- Acer cappdorium and Acer griseum
- Acer maximowiczianum and Acer tutcheri
- Acer saccharinum and Acer rubrum
Find the odd one out.
- Widow flower
- Teasel
- Devil's bit
- Twinflower
Which of the following statements about the family Asclepiadoideae is false?
- It contains a significant number of leafless stem succulents.
- The bright colour of its flowers attracts pollinators.
- Its pollen is grouped into pollinia.
- Rojasia and Microloma belong to this family.
The fruits in most cases of family Caprifoliaceae are either berries or drupes. Which of the following is an exception to this occurrence?
- Genus Triosteum
- Genus Lonicera
- Genus Leycesteria
- Genus Diervilla
Which of the following families consists of bridal wreaths?
- Flacourtiaceae
- Francoaceae
- Fumariaceae
- Erythropalaceae
Dicentra is a member of the family Papaveracae. How many plane(s) of symmetry is/are present in its flower?
- One
- Two
- Three
- No symmetry (0 planes)
On the basis of nutrition, Comandra umbellata is characterised as
- holoparasite
- hemiparasite
- endoparasite
- rootparasite
Which of the following is characterized by palmitate compound leaves?
- Hydrophyllaceae
- Hippocastanaceae
- Hippocrateaceae
- Halophytaceae
Which of the following statements is correct for howellia aquatilis, a small plant of the family Campanulaceae?
- The species has high genetic diversity.
- It is considered to be a threatened species.
- Seeds require water for germination.
- Flowers have a prominent corolla.
Star anise is a spice that is commonly used in cooking, perfumery, soaps, toothpastes and mouthwashes. It is obtained from the pericarp of
- Illicium parviflorum
- Illicium floridanum
- Illicium verum
- Illicium anisatum
Directions: Two statements A and B are given below. Read the statements carefully and choose the correct option.
A: Hydrocleys nymphoides is common in water gardens.
B: It is persistent in the wilds of Florida and Texas.
- Both statements A and B are correct and B is the correct explanation of A.
- Both statements A and B are correct and B is not the correct explanation of A.
- Both statements A and B are incorrect.
- Statement A is incorrect but B is correct.