118 WEICHSELIA. 
In his paper! on the Klin Sandstone Trautschold founds a 
new species, Asplenites Klinensis, for certain specimens of fronds 
which, without any doubt, belong to the present species; his figs. 
3 and 4, pl. xx. are less like the ordinary W. Mantelli forms, and 
may be a distinct species, or possibly smaller fronds of the same 
species. An inclination of the pinnules, similar to that to which 
attention has been drawn in the definition of the species, is noted 
in these Russian specimens. In some pinnules, e.g. pl. xx. fig. 7,? 
Trautschold represents what he describes as linear projections 
covering the lateral veins, and which he regards as sori; the 
venation in this figure is not reticulate, but the fragment is small 
and imperfectly preserved; in the larger specimens no venation is 
seen except a well-marked midrib. This author does not accept 
the name, Werchselia Ludovice, Stiehl., applied by Eichwald to the 
same specimens which were figured by the former as Asplenites 
Klinensis, Traut. Another of Trautschold’s species, Pecopteris 
nigrescens, pl. xix. fig. 4, suggests a large form of pinna of 
similar character to W. Dantelli (ef. Murchison’s ‘ Russia,” 
nly (Gy tig. 3). 
Hosius and von der Marck refer some small pieces of pinne 
to Lonchopteris recentior; those on pl. xlii. figs. 176-179* have 
not the stout prominent rachis which is so characteristic of W. 
Mantelli, and possibly are not correctly referred to that species. 
The larger portions of fronds represented in pls. xliii. and xliv. 
are exactly of the same form as the specimen (V. 2630) shown in 
Pl. X. Fig. 3 of this Catalogue. I have no hesitation in including 
some (pl. xliv. figs. 190 and 191) of the figures of Z. recentior 
and of Weichselia Ludovice (pl. xliii. figs. 187-188) under W. 
Mantelli. The frond shown in pl. xliv. fig. 1894 has no rachis 
preserved, and the pinnules are longer and narrower than the 
undoubted examples of this species given in pl. xliii. 
Renault,’ in speaking of JLonchopteris Mantelli, agrees with 
Schimper that it may belong to the genus Ptervs. 
In a recent paper by Nathorst a new name, Weichselia erratica, 
Nouv. Mém. Soc. Nat. Moscou, vol. xiii. 1870, p. 21. 
Trautschold, Joc. cit. 
Palzeontographica, vol. xxvi. 1879. 
Hosius and von der Marck, Joe. cit. 
Cours bot. foss. vol. iii. p. 167. 
