Question

Which one of the following is a true moss?
A. Club moss
B. Reindeer moss
C. Irish moss
D. Bog moss

Answer 1

The moss belongs to Bryophyta. Mosses grow in close tufts in moist and shady places. Some mosses grow in desert bogs and streams. Usually, they form green carpets or mats on moist and shady walls, damp soil, and on tree trunks, mostly during the rainy season.

Step by step answer:
Club moss is a seedless vascular plant possessing needle-like leaves. They are homosporous, i.e., produce the same types of spores.
-Reindeer moss is a type of lichen found in Arctic land
-Irish moss is a type of red algae that grows in cold water and is used in food recipes.
-Bog moss is a bryophyte also called peat moss or sphagnum and they follow key characteristics of mosses such as the alternation of generation and store water due to the presence of cuticles. Bog moss is tiny leafy-stemmed flowerless.

Hence, the correct answer is option is D, Bog Moss

Additional information:
The general character of mosses is that the gametophytic plant body is a leafy axis and shows a radial symmetry, the axis may be unbranched or branched. The leaf-like lobes are simple, sessile, and usually with distinct nonvascular midrib. They are spirally arranged on the axis. The rhizoids are multicellular, branched, and have oblique septa. Sex organs are usually borne in groups at the apices of reproductive branches. They develop from superficial cells and usually show definite apical cell in early development
The sporophyte is usually differentiated into foot, seta, and capsule.

Note: The moss which belongs to Bryophyta of the plant kingdom is known as true moss. Other moses given do not belong to Bryophytes of the plant kingdom.