39 
excurrcnte, apicem versus angustato ; nervis secundariis firmis marginem 
versus adscendentibus, atteuuatis, infimis abbreviates laqueos formantibus ; 
nervis secundariis tenuissimis inter se et cum firm is parallelis, simplicibus 
approximatis ; nervis tertiariis inconspicuis. 
Obs . — A strong coriaceous leaf, whose thick entire margin appears 
very prominent in the impression. The form and venation of this leaf reveal 
at once the characters of a fig-like leaf. In many species of Ficus are found, 
as in the leaf fossil Pig. 4, stronger and weaker almost parallel secondary 
veins, alternating in such a manner that between every two stronger veins 
there are two or more finer veins. (Compare Ettingshausen, Blattskelete der 
Apetalen, Ficus parasitica , PI. XIX, figs. 5, 6 ; F. Benjaminea, PL XVII, 
figs. 3, 4.) On a close examination of the described leaf fossil, however, I 
hesitate to refer it to the genus Ficus itself. The distance between the 
secondary veins is more unequal, and their originating angles vary 
more than in Ficus. The fossil is especially remarkable for the greatly 
varying strength of the secondary veins. Whilst in the impression the 
strong secondary veins are very prominent, the fine intermediate ones are 
scarcely perceptible without the lens. Pig. 4a shows an enlargement of this 
venation, taken from a place near the apex of the leaf. The fact of the 
venation being so different from Ficus has induced me to constitute it a 
separate genus. The species is named after the naturalist, Daniel C. Solander, 
the companion of Captain Cook. 
Locality and Horizon. — Dalton, near Gunning ; in hard siliceous grit, 
reposing on Silurian rocks. 
AUTO CALF EFE. 
Artocarpidittm Stuarti, sp. nor. 
Plate III, Fig. 5. 
Sp. Char. — A. foliis magnis, coriaceis, oblongis acuminatis integerrimis ; 
nervatione camptodroma; nervo primario valido prominente, recto, apicem 
versus attenuato ; nervis secundariis subangulis 55-65° orientibus, firmis, 
inter se remotis, marginem versus adscendentibus attenuatisque ; nervis 
tertiariis e latere externo nervorum secundariorum subangulis acutis, e nervo 
primario subangulo obtusiore vel recto exeuntibus, tenuibus, simplicibus et 
ramosis inter se conjunctis ; rete macrosynammatum includentibus. 
