1866
Ptilodictya gladiola — Billings, pp. 10
1900
Ptilodictya gladiola Billings — Nickles & Bassler, pp. 379
1911
Ptilodictya gladiola Billings — Bassler, pp. 114, fig. text fig. 43
1928
Ptilodictya gladiola Billings — Bassler, pp. 162, fig. 10:12-13
1962
Ptilodictya gladiola Billings, 1866 — Kiepura, pp. 405, fig. IX 1
1975
Ptilodictya gladiola Billings, 1866 — Kopajevich, pp. 69
1993
Ptilodictya gladiola Billings, 1866 — Gorjunova & Lavretjeva, pp. 65