95 
Ohs . — This most remarkable plant is represented by several very- 
distinct specimens, showing different states of development of the leaf. 
Pigs. 19-21 belong to those which have completed their growth, although 
some are of various sizes. Pigs. 20 and 21 show a lower part with the base ; 
Pig. 19 an upper part of a leaf. On the specimen Pig. 20 the petiole is 4 
millimeters long ; but it is broken off in the specimen Pig. 21. The form of 
the leaf is small, lanceolate or lineal, narrowed gradually toward the apex, 
in the whole length conformingly dissected into ovate or oblong pinna?, or 
lobes, which are oblique to the racliis, and usually a little convcrgingly 
curved, entire and very closely and equally striate with thin and simple 
nerves (see Pig. 20 a, magnified). The texture is more membranaceous than 
coriaceous, or it may perhaps he called thinly coriaceous. The fragment, 
Pig. 22, shows an earlier state of development of the leaf, in which the 
segments or lobes are less separated and more ovate, less acute or, as in 
Pig. 20, roundly obtuse. These qualities may justify the generic reference of 
this fossil plant, though, according to Schimper, the characters of the pinnae 
and nerves do not fully correspond to those of Anomozamites, as all the 
Trias, Jura, and Wealdcn species possess leaves, whose pinnae and nerves are 
perpendicular to the racliis. One species, however, from the Cretaceous of 
North Greenland, described by Heer, shows by its nerves, in some degree 
oblique to the racliis, a remarkable and specific relation to the fossil from the 
Eocene beds of Vegetable Creek. 
I named this species in honor of Baron Perdinand von Mueller, of 
Melbourne, whose great merits in furthering the Present and Possil Plora of 
Australia, are universally known. 
Locality and Horizon . — Old Rose Valley Lead, with the preceding 
species. 
Conifers. 
C TJPRESSINH2E. 
Callithis prisca, sp. nov. 
Plate VIII, Figs. 3, 4 . 
Sp. Char. — C. ramulis gracilibus, soepius dichotomc divisis, foliis 
lateralibus linearibus, adpressis, vix apicc breviter acuto liberis. 
