130 SAGENOPTERIS 
Similar bodies have also been described by Zigno’ from the 
Italian Oolitic strata, but his figures are anything but convincing. 
Schimper, in Zittel’s ‘‘ Handbuch,’’ considers there can scarcely be 
a doubt that we must regard Sagenopteris as a genus of the Rhizo- 
cerpe@, and very near to Marsilea. As Solms-Laubach* has shown, 
the arguments on which this reference of Sagenspteris to the 
Marsileacee is based are far from satisfactory. 
The two leaf fragments figured by Feistmantel* from the 
Karharbari beds of India as Sagenopteris (?) Stoliczana, Feist., 
have surely very little claim to be included in Presl’s genus. We 
may define the genus as follows :— 
Leaves with long stalk, bearing at the apex four palmately- 
placed leaflets; leaflets vary considerably in shape and size in 
the several species and on the same leaf, asymmetrical, linear- 
lanceolate, spathulate, ovate, etc. ; venation reticulate, the meshes 
elongated in the direction of the long axis of the leaflet; towards 
the basal end of the leaflets there is often a fairly well-defined 
midrib which rapidly splits up into a number of anastomosing 
branches as it passes towards the apex of the leaflet. Fructi- 
fication in the form of oval or spherical bodies bearing sporangia. 
Sagenopteris Mantelli (Dunker). 
1846. Cyelopteris Mantelli, Dunker, Wealdenbildung, p. 10, pl. ix. figs. 4 
and 5. 
1849. Adiantites Mantelli, Brongniart, Tableau, p. 107. 
1850. Cyclopteris Mantelli, Unger, Gen. spec. plant. foss. p. 95. 
1852. ? Cyelopteris Mantelli (in part), Ettingshausen, Abh. k.-k. geol. 
Reichs. vol. i. Abth. iii. No. 2, p. 13, pl. iii. fig. 16. 
1869. Aneimidiwn Mantelli, Schimper, Trait. pal. vég. vol. i. p. 486. 
1871. Sagenopteris Mantelli, Schenk, Paleeontographica, vol. xix. p. 222, 
pl. xxxi. fig. 5. 
1874. Aneimidium Mantelli, Schimper, Trait. pal. vég. vol. iii. p. 486. 
1886. ? Thinnfeldia variabilis, Velenovsky, Gymn. bohm. Kreid. p. 6, 
pl. ii. figs. 1-8. 
1890. ? Sagenopteris, sp., Yokoyama, Journ. Coll. Sci. Japan, vol. iii. p. 38, 
pl. x. figs. 3 and 3a. 
1 Flor. foss. Oolit. vol. i. p. 186, pl. xx. 
2a Violtniepamlose. 
5 Fossil Botany, p. 182. 
4 Foss. Fl. Gond. vol. iii. 1881, pt. i, (1879), p. 18, pl. xiii. fig. 4. 
