DESORIPTJON OF THE SPECIES. 317 



minor lobes, one being larger than the other: the larger one ovate, some- 

 times ine([nilateral, and turned upwards; the outer or smaller one is ovate, 

 and turned outwards; the primary nerves three, radiately diverging from 

 the same or nearly the same point at the base of the leaf, going to the sum- 

 mit of each primary lobe; fi'om the two lateral primaries a strong branch 

 o-oes ort" a short distance above the base on the lower side and .extends to 

 the sunnnit of the outer smaller lobes ; all the primaries are sti-ong, and send 

 off on each side branches which curve up and anastomose ; ultimate reticu- 

 lation not seen. 



These leaves are comprehensive in type and unite some of the charac- 

 ters of Liqi(idaiiilci;.Arali(i, and Sassafras. In their primary nervation they 

 resemble Sassafras recurvation,^ Lesq. The lobing is a good deal like that 

 of S. phitanoiihs, Lesq." The mode of nervation resembles that of Liquid- 

 amber integrifolium, Lesq. 



Araliyephyllum obtusilobum, sp. nov. 



Plate CLXIII, Figs. 1, 4; Plate CLXIV, Fig. 3. 



Leaf-substance thick; leaves rather small, broad ftm-shaped in outline, 

 narrowed rajiidh' at base into the petiole, with a slight decurrence of the 

 lamina on the petiole; petiole comparatively very stout, on entering the 

 leaf split up into three strong primary nerves, which diverge palmately 

 to go one into each priiicii>al lobe; some distance above the point tif diverg- 

 ence a strong branch is .sent out on the lower side of each lateral primary 

 to go into the outermost and smallest lobes; middle lobes broadly elliptical, 

 sei)arated from the lateral ones b}' sinuses that are rounded at l)ase, obtuse 

 or subacute ; lateral principal lobes ovate, or oblong-obtuse, or subacute ; 

 .sometimes inequilateral and curved slightly upwards ; minor lateral lobes 

 separated from the main ones by wedge-sliaped .sinuses turned outwards, 

 ])roadly ovate, obtuse, or subacute ; branches of small size go off from the 

 primaries higher in the leaf in an oblique manner, and curve upwards to- 

 wards the ends of the lobes. 



Locality: 72d mile-post, near Brooke; quite rare. 



' Cretaceous and Tertiary Floras, j). 57; Cretaccons Flora, PI. X, Fig. :!. 

 -Cretaceous and Tertiary Floras, PI. VII, Fig.l. 



