rolled under (downwards or backwards), for example when the edges of leaves are rolled under towards the midrib; compare involute.
with the margins inrolled on the lower (abaxial) surface
The edges of the leaves rolled back towards the mid-rib
rolled back at the edges
Of the margin of the pileus: rolled back or up. 
• (a.) Rolled backward or downward.
The leaf margins are curved backwards or downwards towards the underside.
With the margins rolled back.
Revolute leaf margins are those where the edge is rolled under the leaf blade.
having the margins inrolled toward the underside (compare convolute, involute)
Rolled downwards or backwards. ... (09 Oct 1997) ... 
having the margins inrolled toward the underside (compare convolute, involute)
Curled or rolled backward along the edges.
Turned under along the edges.
having the margins rolled backward.
Rev'o·lute adjective [ Latin revolutus , past participle of revolvere . See Revolve .] (Bot. & Zoology) Rolled backward or downward. » A revolute leaf is coiled downwards, with the lower surface inside the coil. A leaf with revolute margins has the edg...
Rolled backward, margin rolled toward lower side
The leaf margins are curved backwards or downwards towards the underside.
The edges of the leaves rolled back towards the mid-rib
In biology, revolute describes something, such as a leaf, rolled backwards or downwards at the tip or margin in the manner of a scroll.