Morphology of Flowering Plants Test 0

Solution

Correct answer is option A.

Explanation for correct option:

In capitulum inflorescence, the peduncle is flat and the florets are arranged in a centripetal manner. The whole cluster of florets is surrounded by a whorl of bracts called as involucre. In Marigold, the receptacle is flat. Florets are bracteate.
Therefore, the correct answer is option A.

The edible part of the apple is the thalamus which is fleshy. Coconuts are classified as a fibrous one-seeded drupe. The fruit of the coconut is a large, dry drupe composed of a thin outer layer (exocarp), a thick, fibrous middle layer called as a mesocarp and a hard inner layer called as an endocarp that surrounds a large seed. A small, cylindrical embryo is embedded in the endosperm nutritive tissue just opposite the functional germination pore. Jackfruit is a sorosis, a type of multiple or composite fruits which develops from spike or spadix or catkin, where the fleshy and juicy part is formed from the axis, the bract and the perianth. The edible flesh of the pineapple is not the true fruit. It is an accessory fruit. It develops from the large, fleshy receptacle of one flower. In guava, the fleshy thalamus and pericarp are edible.
Thus, the correct answer is option D.

Cypsela is a single-seeded dry indehiscent fruit that develops from bicarpellary synchronous one inferior ovary (on the stalk side of the flower). They are sometimes included in achenes. e.g. Dandelion (Taraxacum officinale), fruits of Daisy family (Asteraceae).
Therefore, the correct answer is option D.

Liliaceae commonly called lily family; belong to monocotyledons. It is characterized by the superior ovary, coloured perianth (calyx and corolla undifferentiated), bivariate (2 - whorled) and petaled. Liliaceae has corolla like flowers (Coronarieae)

• There are two forms of imbricate aestivation namely, descendingly imbricate and ascendingly imbricate. Vexillary aestivation is called descendingly imbricate. 
• In vexillary aestivation, there are five petals, of which the posterior one is the largest and it almost covers the two lateral petals. 
• The latter in their turn nearly overlap the two anterior or smallest petals.
• Flowers in the Fabaceae family have this type of arrangement of floral whorls.
  

Thus, the correct answer is option D. 

Microspermae is the series in classification of monocotyledons Orchidaceae. There are minute, undiffererentiated, non- endospermic seeds. In Iridaceae, the perianth consists of 6 petaloid tepals in two differentiated or undifferentiated whorls. Commonly all 6 tepals are united into a perianth tube or epigynous zone.
Calycineae is a series of Palmae (Arecaceae). Fruit-berry in Date palm and drupe in Coconut. The gynoecium of Alismataceae is apocarpous, comprising 3 to many simple pistils, each with a superior ovary containing a single locule with 1 basal ovule. Nectaries may be found on the base of the pistils or on the receptacle. The fruit is an achene.
Coronariae is a series of Liliaceae. Flowers are actinomorphic, bisexual, hypogynous, and trimerous.
Therefore, the correct answer is option C.

• Flowers in the pea family Fabaceae are irregular flowers, with 5 petals forming a distinctive banner, wings and keel appearance. 
• The banner (posterior petal) is a single petal with two lobes. It is also called a standard petal. Two more petals form the wings (lateral petals). The remaining two anterior petals are usually fused together and enclose the essential organs.

Thus, the correct answer is option A.

The classification of tulip plant is as follows,
Kingdom: Plantae,

• Liliaceae consist of 15 genera and 705 species. These are herbaceous perennial plants.  
• They have three united carpels, superior ovary, and axile placentation. 
• Fruit is a capsule or berry. 
• It has underground storage organs such as bulbs, corms, and rhizomes. 
• The common example of Liliaceae family includes Allium sativum, Allium cepa, Astragalus membranaceus, Convallaria majalis, and Aloe vera.

Thus, the correct answer is option C.