| Title | Twenty Lessons on British Mosses; First Steps to a Knowledge of that Beautiful Tribe of Plants... |
| Abbreviation | Twenty Lessons Brit. Mosses |
| Authors | W. Gardiner |
| Publication Dates | 46 p., 18 specimens. 1846. Second series: 58 p., 25 specimens. 1849. Fourth Edition: 51p., 25 specimens. 1852. |
| Remarks | Sayre, G. 1971. Mem. New York Bot. Gard. 19: 175-276 |