Circinate vernation in <em>Thelypteris extensa</em>
Author
Ryan McMillen Southern Illinois University Plant Biology 1125 Lincoln Drive Carbondale Illinois 62901 USA Dumbremindr@aol.com
Description
-
In most ferns the young leaf uncoils during development; these coiled fronds are commonly referred to as "fiddle heads". This photo shows this type of leaf development, known as circinate vernation in Thelypteris extensa.