1912, John Muir, The Yosemite, Chapter 5: The Trees of the Valley,
The branches, outspread in flat plumes and, beautifully fronded, sweep gracefully downward and outward, […] .
1966, Malacological Society of Australia, Malacological Society of Australia, Issues 1-10, page 27,
On the other hand there is in the author's collection a specimen with single nodules only from 40 fathoms off Wollongong, but more fronded than most shore dwelling forms, […]