MIOCENE FLORA— BAD LANDS. 229 



a somewhat more acute angle of divergence, more distant, ascending to 

 the borders in a slight curve, anastomosing with the nervilles of the lower 

 secondary nerves, which are parallel, nearly equidistant, and a little more 

 curved. 



This fine species is very closely allied to the living Tetranthera C'ali- 

 fornica, which has the leaves smaller, and generally four pairs of second- 

 ary nerves less distant than in the fossil leaf. In the Californian species 

 the leaves appear more distinctly lanceolate to an acute apex — at least as 

 far as can be judged from the outline of the fossil leaf whose upper part 

 is destroyed. 



Bab. — Bad Lands. Professor Wm. Benton. 



CINCHONACE^. 



CmCHONIDIUM, Linn. 



Leaves oval or obloug, subcoriaceous, very entire; nervation pinnate; lateral 

 nerves at an acute angle of divergence, ascending along the borders, camptodroine ; 

 tertiary nerves transverse, forming by anastomosis with the quaternary ones a polyg- 

 onal areolation ; seeds in simple or compound racemes, oval. 



Schimper remarks on this definition that the leaves described under 

 this name have a likeness to those of some Cinchonaceoe, but that it is not 

 possible to know whether any of them pertain to the genus Cinchona. 



Cinchonidiiim ovale, sp. nov. 

 Plate XLVIII, Figs. 8-106. 



Leaves oval, small, narrowed to a short petiole and to the apex ; lateral nerves 

 strong, parallel ; nervation and areolation distinct ; fruit paniculate, racemose ; cap- 

 sules oval, short-pedicellate. 



Though fig. 9 has the base rounded to the petiole and is smaller, the 



characters of nervation are the same and both leaves evidently represent 



the same species. Their sizes vary from 5 to 6 centimeters long and from 



2 to 3 centimeters broad. The fruits, which appear paniculate in short 



racemes (not corymbose), are exactly oval, obtuse, 8 millimeters long, 5 



millimeters broad, lineate lengthwise and as if splitting in the middle by 



a more distinct line of separation. 



