62379
Identify the pair that exhibit 'Circinate vernation".
1 Equisetum and Selaginella
2 Psilotum and Riccia
3 Riccia and Nephrolepis
4 Nephrolepis and Cycas
Explanation:
: Nephrolepis and Cycas exhibit circinate vernation. Circinate vernation is the manner in which the frond emerges, as the fern frond is tightly curled so that the tender growing tip of the fronds is protected within a coil. The fronds unwind from the tightly coiled structure that was formed in the overwintering bud.