heterospory मीनिंग इन हिंदी

While heterospory is the norm among all plants with seeds, such as the flowering plants and conifers, it is very rare among other groups of plants.
During the Devonian period several plant groups independently evolved heterospory and subsequently the habit of endospory, in which the gametophytes develop in miniaturized form inside the spore wall.
If so, " Aarabia " had megaspores and could be the earliest known plant with'heterospory', i . e . two distinct sizes of spore.

संज्ञा.