Fruits which break at maturity into number of pieces equal to the number carpels are found in :
(I) Aristolochia
(II) Datura
(III) Dolichos
(IV) Abelmoschus
Important Questions on Morphology of Flowering Plants
Study the following lists:
| List-I | List-II | ||
| A | Entire leaf modified into a spine | (I) | Clematis |
| B | Leaf except stipules modified into a tendril | (II) | Citrus |
| C | Stipules modified into a tendril | (III) | Euphorbia |
| D | First leaf of axillary bud modified into a spine | (IV) | Lathyrus |
| (V) | Smilax |
The correct match is
Assertion : In the syconus type of fruit, the achenes formed are fewer than the total number of flowers in the inflorescence from which it is formed.
Reason : Upper and middle flowers cannot develop into fruits.
The correct answer is:
Study the following table :
| (I) | Modified aerial stem |
Unisexual flowers develop acropetally |
Chalazal entry of pollen |
| (II) | Flowers achlamydeous length |
Pedicels of all the flowers are of same |
Presence of false whorl |
| (III) | Cohesion of bracts forming a cup |
Centrifugal opening of flowers |
Male flowers many |
| (IV) | Flower formation on one side in a spiral manner | Presence of rachilla | Terminal part of the peduncle is flowerless |
Select the correct pair of answers in which the former represents the set of characters present in Poinsettia and the latter in the pair represents the set of characters present in Casuarina.
A perennial shrub has compound leaves and solitary zygomorphic and epigynous flowers. Each flower reveals dichlamydeous condition with many stamens and multiple fruit with exalbuminous seeds.
What is the ratio of advanced and primitive characters in it?
Identify a pair of the following plants which show a modification of axillary buds into tendrils and hooks respectively:
I. Hugonia
II. Duranta
III. Passiflora
IV. Dioscorea
The correct pair is:
