But the involute edges of the pileus are bearded with close hairs.
involute, in vernation, 72; rolled inwards from the edges, 97.
The central circle incloses a perforated circlet, and the involute lines are long and shallow.
The margin of the cap is smooth and turned under at first (involute).
The leaves are rolled towards the midrib on the upper face (involute).
The body is ornamented with carelessly drawn, deeply incised, involute designs.
All involute teeth of the same pitch work smoothly together.
On the sides of the vessel are engraved figures, consisting of clusters of involute lines, as in the specimen just given.
involute, which is the same but the margins rolled inward, as in most of the large-flowered species of Clematis, Fig. 279.
The teeth of the wheels should always be of involute and not of epicycloidal form, for the following reasons.