In ferns, a pinna refers to a leaflet or a division of the frond (the leaf of the fern). Each pinna bears structures called sporangia, which produce spores for reproduction. The arrangement and shape of pinnae contribute to the overall morphology of the fern and play a role in maximizing light capture for photosynthesis. Additionally, pinnae help in water retention and gas exchange, supporting the plant's growth and survival.
The fern produce spores called sori(sorus) on the lower surfaces of pinna(leaflets)
The fern produce spores called sori(sorus) on the lower surfaces of pinna(leaflets)
Sandrine Pinna's birth name is Sandrine Pinna.
outer ear
the pinna funnels sound waves.
the pinna funnels sound waves.
Christophe Pinna was born in 1968.
Rosh Pinna was created in 1882.
The population of Rosh Pinna is 2,500.
Sandrine Pinna is 168 cm.
Pinna Colusso has written: 'Musica celtica'
Salvatore Pinna was born on 1975-08-23.