Cheilanthes carlotta-halliae Aspidotis carlotta-halliae is a species of perennial fern known by the common names tufted lacefern and Carlotta Hall's lace fern.

It is endemic to California,[2] where it is found in the Central Coast Ranges and coastal hillsides, often on serpentine soils.

The fern was named for fern collector Carlotta Case Hall, who coauthored the 1912 botanical guide A Yosemite Flora with her husband, botanist Harvey Monroe Hall.

It has leathery triangular leaves divided into many pairs of leaflets, which are each subdivided into many coarse, irregularly toothed segments.

The undersides of the segments are lined with sori containing sporangia.