[1105] Braun 1840.
[1106] Muenster 1846, p. 26.
[1107] Eltingshausen and Debey 1857.
[1108] Engelhardt 1870 (Pl. I. figs. 1 and 2).
[1109] Goeppert 1845, p. 195.
[1110] See Schimper 1869, pp. 145, etc.
[1111] Goeppert and Menge 1883, t. 1, fig. 3.
[1112] Ludwig 1859, p. 61 (t. 9, figs. 1-4), 1859-61.
[1113] Schimper in Zittel 1890.
[1114] Goeppert and Menge 1883.